web-speech-cognitive-services/dist/web-speech-cognitive-services.js

Polyfill Web Speech API with Cognitive Services Speech-to-Text service

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.js
var src_exports = {};
__export(src_exports, {
  createSpeechRecognitionPonyfill: () => createSpeechRecognitionPonyfill,
  createSpeechRecognitionPonyfillFromRecognizer: () => createSpeechRecognitionPonyfillFromRecognizer,
  createSpeechServicesPonyfill: () => SpeechServices_default,
  createSpeechSynthesisPonyfill: () => TextToSpeech_default,
  fetchAuthorizationToken: () => fetchAuthorizationToken
});
module.exports = __toCommonJS(src_exports);

// src/SpeechServices/SpeechToText/createSpeechRecognitionPonyfill.ts
var import_microsoft_cognitiveservices_speech_sdk2 = require("microsoft-cognitiveservices-speech-sdk");

// src/SpeechServices/patchOptions.ts
var import_valibot8 = require("valibot");

// src/SpeechServices/resolveFunctionOrReturnValue.ts
function isFunction(value) {
  return typeof value === "function";
}
function resolveFunctionOrReturnValue(fnOrValue) {
  return isFunction(fnOrValue) ? fnOrValue() : fnOrValue;
}

// src/SpeechServices/SpeechSDK.ts
var import_microsoft_cognitiveservices_speech_sdk = require("microsoft-cognitiveservices-speech-sdk/distrib/lib/microsoft.cognitiveservices.speech.sdk.js");
var SpeechSDK = {
  AudioConfig: import_microsoft_cognitiveservices_speech_sdk.AudioConfig,
  OutputFormat: import_microsoft_cognitiveservices_speech_sdk.OutputFormat,
  ResultReason: import_microsoft_cognitiveservices_speech_sdk.ResultReason,
  SpeechConfig: import_microsoft_cognitiveservices_speech_sdk.SpeechConfig,
  SpeechRecognizer: import_microsoft_cognitiveservices_speech_sdk.SpeechRecognizer
};
var SpeechSDK_default = SpeechSDK;

// src/SpeechServices/SpeechToText/validation/credentialsSchema.ts
var import_valibot = require("valibot");
var credentialsSchema = (0, import_valibot.pipe)(
  (0, import_valibot.intersect)([
    (0, import_valibot.union)(
      [
        (0, import_valibot.object)({
          authorizationToken: (0, import_valibot.string)(),
          subscriptionKey: (0, import_valibot.optional)((0, import_valibot.undefined_)('"subscriptionKey" must be unset when "authorizationToken" is set.'))
        }),
        (0, import_valibot.object)({
          authorizationToken: (0, import_valibot.optional)((0, import_valibot.undefined_)('"authorizationToken" must be unset when "subscriptionKey" is set.')),
          subscriptionKey: (0, import_valibot.string)()
        })
      ],
      'The object must either have either "authorizationToken" or "subscriptionKey" set, but not both.'
    ),
    (0, import_valibot.union)(
      [
        (0, import_valibot.object)({
          customVoiceHostname: (0, import_valibot.optional)((0, import_valibot.undefined_)('"customVoiceHostname" must be unest when "region" is set.')),
          region: (0, import_valibot.string)(),
          speechRecognitionHostname: (0, import_valibot.optional)(
            (0, import_valibot.undefined_)('"speechRecognitionHostname" must be unest when "region" is set.')
          ),
          speechSynthesisHostname: (0, import_valibot.optional)((0, import_valibot.undefined_)('"speechSynthesisHostname" must be unest when "region" is set.'))
        }),
        (0, import_valibot.object)({
          customVoiceHostname: (0, import_valibot.optional)((0, import_valibot.union)([(0, import_valibot.string)(), (0, import_valibot.undefined_)()])),
          region: (0, import_valibot.optional)((0, import_valibot.undefined_)('"region" must be unset when "*Hostname" is set.')),
          speechRecognitionHostname: (0, import_valibot.string)(),
          speechSynthesisHostname: (0, import_valibot.string)()
        })
      ],
      'The object must either have either "region" or "*Hostname" set, but not both.'
    )
  ]),
  (0, import_valibot.readonly)()
);
var credentialsSchema_default = credentialsSchema;

// src/SpeechServices/SpeechToText/validation/enableTelemetrySchema.ts
var import_valibot2 = require("valibot");
var enableTelemetrySchema = (0, import_valibot2.optional)((0, import_valibot2.boolean)());
var enableTelemetrySchema_default = enableTelemetrySchema;

// src/SpeechServices/SpeechToText/validation/initialSilenceTimeoutSchema.ts
var import_valibot3 = require("valibot");
var initialSilenceTimeoutSchema = (0, import_valibot3.optional)((0, import_valibot3.pipe)((0, import_valibot3.number)(), (0, import_valibot3.minValue)(1), (0, import_valibot3.maxValue)(6e4)));
var initialSilenceTimeoutSchema_default = initialSilenceTimeoutSchema;

// src/SpeechServices/SpeechToText/validation/looseEventsSchema.ts
var import_valibot4 = require("valibot");
var looseEventsSchema = (0, import_valibot4.optional)((0, import_valibot4.boolean)(), false);
var looseEventsSchema_default = looseEventsSchema;

// src/SpeechServices/SpeechToText/validation/referenceGrammarsSchema.ts
var import_valibot5 = require("valibot");
var referenceGrammarsSchema = (0, import_valibot5.pipe)(
  (0, import_valibot5.optional)((0, import_valibot5.array)((0, import_valibot5.string)()), []),
  // any(),
  // array(string()),
  // transform<string[], readonly string[]>(value => (Object.isFrozen(value) ? value : Object.freeze([...value])))
  (0, import_valibot5.transform)((value) => Object.isFrozen(value) ? value : Object.freeze([...value]))
);
var referenceGrammarsSchema_default = referenceGrammarsSchema;

// src/SpeechServices/SpeechToText/validation/speechRecognitionEndpointIdSchema.ts
var import_valibot6 = require("valibot");
var speechRecognitionEndpointIdSchema = (0, import_valibot6.optional)((0, import_valibot6.string)());
var speechRecognitionEndpointIdSchema_default = speechRecognitionEndpointIdSchema;

// src/SpeechServices/SpeechToText/validation/textNormalizationSchema.ts
var import_valibot7 = require("valibot");
var textNormalizationSchema = (0, import_valibot7.optional)(
  (0, import_valibot7.enum_)({
    display: "display",
    itn: "itn",
    lexical: "lexical",
    maskeditn: "maskeditn"
  }),
  "display"
);
var textNormalizationSchema_default = textNormalizationSchema;

// src/SpeechServices/patchOptions.ts
var { AudioConfig: AudioConfig2 } = SpeechSDK_default;
var shouldWarnOnSubscriptionKey = true;
function patchOptions(init) {
  const {
    audioConfig,
    credentials,
    enableTelemetry,
    initialSilenceTimeout,
    looseEvent,
    referenceGrammars,
    speechRecognitionEndpointId,
    textNormalization
  } = init;
  let { looseEvents } = init;
  if (typeof looseEvent !== "undefined") {
    console.warn('web-speech-cognitive-services: The option "looseEvent" should be named as "looseEvents".');
    looseEvents = looseEvent;
  }
  return Object.freeze({
    audioConfig: audioConfig || AudioConfig2.fromDefaultMicrophoneInput(),
    // We set telemetry to true to honor the default telemetry settings of Speech SDK
    // https://github.com/Microsoft/cognitive-services-speech-sdk-js#data--telemetry
    enableTelemetry: (0, import_valibot8.parse)(enableTelemetrySchema_default, enableTelemetry),
    fetchCredentials: async () => {
      const parsedCredentials = (0, import_valibot8.parse)(credentialsSchema_default, await resolveFunctionOrReturnValue(credentials));
      if (shouldWarnOnSubscriptionKey && parsedCredentials.subscriptionKey) {
        console.warn(
          "web-speech-cognitive-services: In production environment, subscription key should not be used, authorization token should be used instead."
        );
        shouldWarnOnSubscriptionKey = false;
      }
      return parsedCredentials;
    },
    initialSilenceTimeout: (0, import_valibot8.parse)(initialSilenceTimeoutSchema_default, initialSilenceTimeout),
    looseEvents: (0, import_valibot8.parse)(looseEventsSchema_default, looseEvents),
    referenceGrammars: (0, import_valibot8.parse)(referenceGrammarsSchema_default, referenceGrammars),
    speechRecognitionEndpointId: (0, import_valibot8.parse)(speechRecognitionEndpointIdSchema_default, speechRecognitionEndpointId),
    textNormalization: (0, import_valibot8.parse)(textNormalizationSchema_default, textNormalization)
  });
}

// src/SpeechServices/SpeechToText/createSpeechRecognitionPonyfillFromRecognizer.ts
var import_valibot9 = require("valibot");

// ../../node_modules/p-defer/index.js
function pDefer() {
  const deferred = {};
  deferred.promise = new Promise((resolve, reject) => {
    deferred.resolve = resolve;
    deferred.reject = reject;
  });
  return deferred;
}

// src/Util/createPromiseQueue.js
function createPromiseQueue() {
  let shiftDeferred;
  const queue = [];
  const push = (value) => {
    if (shiftDeferred) {
      const { resolve } = shiftDeferred;
      shiftDeferred = null;
      resolve(value);
    } else {
      queue.push(value);
    }
  };
  const shift = () => {
    if (queue.length) {
      return Promise.resolve(queue.shift());
    }
    return (shiftDeferred || (shiftDeferred = pDefer())).promise;
  };
  return {
    push,
    shift
  };
}

// src/SpeechServices/SpeechToText/SpeechRecognitionAlternative.ts
var SpeechRecognitionAlternative = class {
  constructor({ confidence, transcript }) {
    this.#confidence = confidence;
    this.#transcript = transcript;
  }
  #confidence;
  #transcript;
  get confidence() {
    return this.#confidence;
  }
  get transcript() {
    return this.#transcript;
  }
};

// src/SpeechServices/SpeechToText/private/FakeArray.ts
var FakeArray = class {
  constructor(array2) {
    if (!array2) {
      throw new Error("array must be set.");
    }
    this.#array = array2;
    for (const key in array2) {
      Object.defineProperty(this, key, {
        enumerable: true,
        get() {
          return array2[key];
        }
      });
    }
  }
  #array;
  [Symbol.iterator]() {
    return this.#array[Symbol.iterator]();
  }
  get length() {
    return this.#array.length;
  }
};

// src/SpeechServices/SpeechToText/SpeechRecognitionResult.ts
var SpeechRecognitionResult = class extends FakeArray {
  constructor(init) {
    super(init.results);
    this.#isFinal = init.isFinal;
  }
  #isFinal;
  get isFinal() {
    return this.#isFinal;
  }
};

// src/SpeechServices/SpeechToText/cognitiveServiceEventResultToWebSpeechRecognitionResult.ts
var {
  ResultReason: { RecognizingSpeech, RecognizedSpeech }
} = SpeechSDK_default;
function cognitiveServiceEventResultToWebSpeechRecognitionResult(result, init) {
  const { maxAlternatives = Infinity, textNormalization = "display" } = init || {};
  const json = typeof result.json === "string" ? JSON.parse(result.json) : result.json;
  if (result.reason === RecognizingSpeech || result.reason === RecognizedSpeech && !json.NBest) {
    return new SpeechRecognitionResult({
      isFinal: result.reason === RecognizedSpeech,
      results: [
        new SpeechRecognitionAlternative({
          confidence: 0.5,
          transcript: result.text
        })
      ]
    });
  } else if (result.reason === RecognizedSpeech) {
    return new SpeechRecognitionResult({
      isFinal: true,
      results: (json.NBest || []).slice(0, maxAlternatives).map(
        ({ Confidence: confidence, Display: display, ITN: itn, Lexical: lexical, MaskedITN: maskedITN }) => new SpeechRecognitionAlternative({
          confidence,
          transcript: textNormalization === "itn" ? itn : textNormalization === "lexical" ? lexical : textNormalization === "maskeditn" ? maskedITN : display
        })
      )
    });
  }
  return new SpeechRecognitionResult({ isFinal: false, results: [] });
}

// src/SpeechServices/SpeechToText/cognitiveServicesAsyncToPromise.ts
function cognitiveServicesAsyncToPromise(fn, context = void 0) {
  return (...args) => (
    // eslint-disable-next-line prefer-spread
    new Promise((resolve, reject) => fn.apply(context, [...args, resolve, reject]))
  );
}

// src/SpeechServices/SpeechToText/private/EventListenerMap.ts
var EventListenerMap = class {
  constructor(eventTarget) {
    this.#eventTarget = eventTarget;
    this.#propertyMap = {};
  }
  #eventTarget;
  #propertyMap;
  getProperty(name) {
    return this.#propertyMap[name];
  }
  setProperty(name, value) {
    const existing = this.#propertyMap[name];
    existing && this.#eventTarget.removeEventListener(name, existing);
    if (value) {
      this.#eventTarget.addEventListener(name, value);
    }
    this.#propertyMap[name] = value;
  }
};

// src/SpeechServices/SpeechToText/private/prepareAudioConfig.ts
var import_AudioSourceEvents = require("microsoft-cognitiveservices-speech-sdk/distrib/lib/src/common/AudioSourceEvents.js");

// src/SpeechServices/SpeechToText/private/averageAmplitude.ts
function averageAmplitude(arrayBuffer) {
  const array2 = Array.from(new Int16Array(arrayBuffer));
  return array2.reduce((averageAmplitude2, amplitude) => averageAmplitude2 + Math.abs(amplitude), 0) / array2.length;
}

// src/SpeechServices/SpeechToText/private/prepareAudioConfig.ts
function prepareAudioConfig(audioConfig) {
  const audioConfigImpl = audioConfig;
  const originalAttach = audioConfigImpl.attach;
  const boundOriginalAttach = audioConfigImpl.attach.bind(audioConfigImpl);
  let firstChunk = false;
  let muted = false;
  audioConfigImpl.attach = async () => {
    const reader = await boundOriginalAttach("");
    return {
      ...reader,
      read: async () => {
        const chunk = await reader.read();
        if (!firstChunk && averageAmplitude(chunk.buffer) > 150) {
          audioConfigImpl.events.onEvent(new import_AudioSourceEvents.AudioSourceEvent("FirstAudibleChunk", ""));
          firstChunk = true;
        }
        if (muted) {
          return { buffer: new ArrayBuffer(0), isEnd: true, timeReceived: Date.now() };
        }
        return chunk;
      }
    };
  };
  return {
    audioConfig,
    pause: () => {
      muted = true;
    },
    unprepare: () => {
      audioConfigImpl.attach = originalAttach;
    }
  };
}

// src/SpeechServices/SpeechToText/private/serializeRecognitionResult.ts
function serializeRecognitionResult({
  duration,
  errorDetails,
  json,
  offset,
  properties,
  reason,
  resultId,
  text
}) {
  return Object.freeze({
    duration,
    errorDetails,
    json: json && JSON.parse(json),
    offset,
    properties,
    reason,
    resultId,
    text
  });
}

// src/SpeechServices/SpeechToText/SpeechGrammarList.ts
var SpeechGrammarList = class {
  constructor() {
    this.#phrases = [];
  }
  addFromString() {
    throw new Error("JSGF is not supported");
  }
  addFromURI() {
    throw new Error("JSGF is not supported");
  }
  item() {
    throw new Error("JSGF is not supported");
  }
  get length() {
    throw new Error("JSGF is not supported");
  }
  #phrases;
  get phrases() {
    return this.#phrases;
  }
  set phrases(value) {
    if (Array.isArray(value)) {
      this.#phrases = Object.freeze([...value]);
    } else if (typeof value === "string") {
      this.#phrases = Object.freeze([value]);
    } else {
      throw new Error(`The provided value is not an array or of type 'string'`);
    }
  }
};

// src/SpeechServices/SpeechToText/SpeechRecognitionErrorEvent.ts
var SpeechRecognitionErrorEvent = class extends Event {
  constructor(type, { error, message }) {
    super(type);
    this.#error = error;
    this.#message = message;
  }
  #error;
  #message;
  get error() {
    return this.#error;
  }
  get message() {
    return this.#message;
  }
  get type() {
    return "error";
  }
};

// src/SpeechServices/SpeechToText/SpeechRecognitionResultList.ts
var SpeechRecognitionResultList = class extends FakeArray {
  constructor(result) {
    super(result);
  }
};

// src/SpeechServices/SpeechToText/SpeechRecognitionEvent.ts
var SpeechRecognitionEvent = class extends Event {
  constructor(type, { data, resultIndex, results } = {}) {
    super(type);
    this.#data = data;
    this.#resultIndex = resultIndex;
    this.#results = results || new SpeechRecognitionResultList([]);
  }
  #data;
  // TODO: "resultIndex" should be set.
  #resultIndex;
  #results;
  get data() {
    return this.#data;
  }
  get resultIndex() {
    return this.#resultIndex;
  }
  get results() {
    return this.#results;
  }
  get type() {
    return super.type;
  }
};

// src/SpeechServices/SpeechToText/createSpeechRecognitionPonyfillFromRecognizer.ts
var { ResultReason: ResultReason2, SpeechRecognizer: SpeechRecognizer2 } = SpeechSDK_default;
var enableTelemetrySchema2 = (0, import_valibot9.union)([(0, import_valibot9.boolean)(), (0, import_valibot9.undefined_)()]);
function createSpeechRecognitionPonyfillFromRecognizer({
  createRecognizer,
  enableTelemetry,
  looseEvents,
  referenceGrammars,
  textNormalization
}) {
  createRecognizer = (0, import_valibot9.parse)((0, import_valibot9.function_)(), createRecognizer);
  enableTelemetry = (0, import_valibot9.parse)(enableTelemetrySchema2, enableTelemetry);
  looseEvents = (0, import_valibot9.parse)((0, import_valibot9.boolean)(), looseEvents);
  referenceGrammars = (0, import_valibot9.parse)(referenceGrammarsSchema_default, referenceGrammars);
  textNormalization = (0, import_valibot9.parse)(textNormalizationSchema_default, textNormalization);
  typeof enableTelemetry !== "undefined" && SpeechRecognizer2.enableTelemetry(enableTelemetry);
  class SpeechRecognition extends EventTarget {
    #continuous = false;
    #eventListenerMap = new EventListenerMap(this);
    #grammars = new SpeechGrammarList();
    #interimResults = false;
    #lang = typeof window !== "undefined" ? window.document.documentElement.getAttribute("lang") || window.navigator.language : "en-US";
    // eslint-disable-next-line no-magic-numbers
    #maxAlternatives = 1;
    emitCognitiveServices(type, event) {
      this.dispatchEvent(
        new SpeechRecognitionEvent("cognitiveservices", {
          data: {
            ...event,
            type
          }
        })
      );
    }
    get continuous() {
      return this.#continuous;
    }
    set continuous(value) {
      this.#continuous = value;
    }
    get grammars() {
      return this.#grammars;
    }
    set grammars(value) {
      if (value instanceof SpeechGrammarList) {
        this.#grammars = value;
      } else {
        throw new Error(`The provided value is not of type 'SpeechGrammarList'`);
      }
    }
    get interimResults() {
      return this.#interimResults;
    }
    set interimResults(value) {
      this.#interimResults = value;
    }
    get maxAlternatives() {
      return this.#maxAlternatives;
    }
    set maxAlternatives(value) {
      this.#maxAlternatives = value;
    }
    get lang() {
      return this.#lang;
    }
    set lang(value) {
      this.#lang = value;
    }
    get onaudioend() {
      return this.#eventListenerMap.getProperty("audioend");
    }
    set onaudioend(value) {
      this.#eventListenerMap.setProperty("audioend", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'audiostart'>) => void) | undefined } */
    get onaudiostart() {
      return this.#eventListenerMap.getProperty("audiostart");
    }
    set onaudiostart(value) {
      this.#eventListenerMap.setProperty("audiostart", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'cognitiveservices'>) => void) | undefined } */
    get oncognitiveservices() {
      return this.#eventListenerMap.getProperty("cognitiveservices");
    }
    set oncognitiveservices(value) {
      this.#eventListenerMap.setProperty("cognitiveservices", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'end'>) => void) | undefined } */
    get onend() {
      return this.#eventListenerMap.getProperty("end");
    }
    set onend(value) {
      this.#eventListenerMap.setProperty("end", value);
    }
    /** @type { ((event: SpeechRecognitionErrorEvent) => void) | undefined } */
    get onerror() {
      return this.#eventListenerMap.getProperty("error");
    }
    set onerror(value) {
      this.#eventListenerMap.setProperty("error", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'result'>) => void) | undefined } */
    get onresult() {
      return this.#eventListenerMap.getProperty("result");
    }
    set onresult(value) {
      this.#eventListenerMap.setProperty("result", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'soundend'>) => void) | undefined } */
    get onsoundend() {
      return this.#eventListenerMap.getProperty("soundend");
    }
    set onsoundend(value) {
      this.#eventListenerMap.setProperty("soundend", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'soundstart'>) => void) | undefined } */
    get onsoundstart() {
      return this.#eventListenerMap.getProperty("soundstart");
    }
    set onsoundstart(value) {
      this.#eventListenerMap.setProperty("soundstart", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'speechend'>) => void) | undefined } */
    get onspeechend() {
      return this.#eventListenerMap.getProperty("speechend");
    }
    set onspeechend(value) {
      this.#eventListenerMap.setProperty("speechend", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'speechstart'>) => void) | undefined } */
    get onspeechstart() {
      return this.#eventListenerMap.getProperty("speechstart");
    }
    set onspeechstart(value) {
      this.#eventListenerMap.setProperty("speechstart", value);
    }
    /** @type { ((event: SpeechRecognitionEvent<'start'>) => void) | undefined } */
    get onstart() {
      return this.#eventListenerMap.getProperty("start");
    }
    set onstart(value) {
      this.#eventListenerMap.setProperty("start", value);
    }
    abort;
    stop;
    start() {
      this._startOnce().catch((err) => {
        this.dispatchEvent(
          new SpeechRecognitionErrorEvent("error", { error: err, message: err && (err.stack || err.message) })
        );
      });
    }
    async _startOnce() {
      const recognizer = await createRecognizer(this.lang);
      const { pause, unprepare } = prepareAudioConfig(recognizer["audioConfig"]);
      try {
        const queue = createPromiseQueue();
        let soundStarted;
        let speechStarted;
        let stopping;
        const { detach: detachAudioConfigEvent } = recognizer["audioConfig"].events.attach(
          (event) => {
            const { name } = event;
            if (name === "AudioSourceReadyEvent") {
              queue.push({ audioSourceReady: {} });
            } else if (name === "AudioSourceOffEvent") {
              queue.push({ audioSourceOff: {} });
            } else if (name === "FirstAudibleChunk") {
              queue.push({ firstAudibleChunk: {} });
            }
          }
        );
        recognizer.canceled = (_, { errorDetails, offset, reason, sessionId }) => {
          queue.push({
            canceled: {
              errorDetails,
              offset,
              reason,
              sessionId
            }
          });
        };
        recognizer.recognized = (_, { offset, result, sessionId }) => {
          queue.push({
            recognized: {
              offset,
              result: serializeRecognitionResult(result),
              sessionId
            }
          });
        };
        recognizer.recognizing = (_, { offset, result, sessionId }) => {
          queue.push({
            recognizing: {
              offset,
              result: serializeRecognitionResult(result),
              sessionId
            }
          });
        };
        recognizer.sessionStarted = (_, { sessionId }) => {
          queue.push({ sessionStarted: { sessionId } });
        };
        recognizer.sessionStopped = (_, { sessionId }) => {
          queue.push({ sessionStopped: { sessionId } });
        };
        recognizer.speechStartDetected = (_, { offset, sessionId }) => {
          queue.push({ speechStartDetected: { offset, sessionId } });
        };
        recognizer.speechEndDetected = (_, { sessionId }) => {
          queue.push({ speechEndDetected: { sessionId } });
        };
        const { phrases } = this.grammars;
        const { dynamicGrammar } = recognizer["privReco"];
        referenceGrammars && referenceGrammars.length && dynamicGrammar.addReferenceGrammar([...referenceGrammars]);
        phrases && phrases.length && dynamicGrammar.addPhrase([...phrases]);
        await cognitiveServicesAsyncToPromise(recognizer.startContinuousRecognitionAsync, recognizer)();
        if (typeof recognizer.stopContinuousRecognitionAsync === "function") {
          this.abort = () => queue.push({ abort: {} });
          this.stop = () => queue.push({ stop: {} });
        } else {
          this.abort = this.stop = void 0;
        }
        let audioStarted;
        let finalEvent = void 0;
        let finalizedResults = [];
        for (let loop = 0; !stopping || audioStarted; loop++) {
          const event = await queue.shift();
          const {
            abort,
            audioSourceOff,
            audioSourceReady,
            canceled,
            firstAudibleChunk,
            recognized,
            recognizing,
            stop
          } = event;
          Object.keys(event).forEach((name) => this.emitCognitiveServices(name, event[name]));
          const errorMessage = canceled && canceled.errorDetails;
          if (/Permission\sdenied/u.test(errorMessage || "")) {
            finalEvent = new SpeechRecognitionErrorEvent("error", { error: "not-allowed" });
            break;
          }
          if (!loop) {
            this.dispatchEvent(new SpeechRecognitionEvent("start"));
          }
          if (errorMessage) {
            if (/1006/u.test(errorMessage)) {
              if (!audioStarted) {
                this.dispatchEvent(new SpeechRecognitionEvent("audiostart"));
                this.dispatchEvent(new SpeechRecognitionEvent("audioend"));
              }
              finalEvent = new SpeechRecognitionErrorEvent("error", { error: "network" });
            } else {
              finalEvent = new SpeechRecognitionErrorEvent("error", { error: "unknown" });
            }
            break;
          } else if (abort || stop) {
            if (abort) {
              finalEvent = new SpeechRecognitionErrorEvent("error", { error: "aborted" });
              stopping = "abort";
            } else {
              pause();
              stopping = "stop";
            }
            if (abort && recognizer.stopContinuousRecognitionAsync) {
              await cognitiveServicesAsyncToPromise(recognizer.stopContinuousRecognitionAsync, recognizer)();
            }
          } else if (audioSourceReady) {
            this.dispatchEvent(new SpeechRecognitionEvent("audiostart"));
            audioStarted = true;
          } else if (firstAudibleChunk) {
            this.dispatchEvent(new SpeechRecognitionEvent("soundstart"));
            soundStarted = true;
          } else if (audioSourceOff) {
            speechStarted && this.dispatchEvent(new SpeechRecognitionEvent("speechend"));
            soundStarted && this.dispatchEvent(new SpeechRecognitionEvent("soundend"));
            audioStarted && this.dispatchEvent(new SpeechRecognitionEvent("audioend"));
            audioStarted = soundStarted = speechStarted = false;
            break;
          } else if (stopping !== "abort") {
            if (recognized && recognized.result && recognized.result.reason === ResultReason2.NoMatch) {
              if (!this.continuous || stopping === "stop") {
                finalEvent = new SpeechRecognitionEvent("result", {
                  results: new SpeechRecognitionResultList(finalizedResults)
                });
                recognizer.stopContinuousRecognitionAsync && await cognitiveServicesAsyncToPromise(
                  recognizer.stopContinuousRecognitionAsync,
                  recognizer
                )();
                break;
              }
            } else if (recognized || recognizing) {
              if (!audioStarted) {
                this.dispatchEvent(new SpeechRecognitionEvent("audiostart"));
                audioStarted = true;
              }
              if (!soundStarted) {
                this.dispatchEvent(new SpeechRecognitionEvent("soundstart"));
                soundStarted = true;
              }
              if (!speechStarted) {
                this.dispatchEvent(new SpeechRecognitionEvent("speechstart"));
                speechStarted = true;
              }
              if (recognized) {
                const result = cognitiveServiceEventResultToWebSpeechRecognitionResult(recognized.result, {
                  maxAlternatives: this.maxAlternatives,
                  textNormalization
                });
                const recognizable = !!result[0]?.transcript;
                if (recognizable) {
                  finalizedResults = [...finalizedResults, result];
                  this.continuous && this.dispatchEvent(
                    new SpeechRecognitionEvent("result", {
                      results: new SpeechRecognitionResultList(finalizedResults)
                    })
                  );
                }
                if (this.continuous && recognizable) {
                  finalEvent = void 0;
                } else {
                  finalEvent = new SpeechRecognitionEvent("result", {
                    results: new SpeechRecognitionResultList(finalizedResults)
                  });
                }
                if ((!this.continuous || stopping === "stop") && recognizer.stopContinuousRecognitionAsync) {
                  await cognitiveServicesAsyncToPromise(recognizer.stopContinuousRecognitionAsync, recognizer)();
                }
                if (looseEvents && finalEvent && recognizable) {
                  this.dispatchEvent(finalEvent);
                  finalEvent = void 0;
                }
              } else if (recognizing) {
                this.interimResults && this.dispatchEvent(
                  new SpeechRecognitionEvent("result", {
                    results: new SpeechRecognitionResultList([
                      ...finalizedResults,
                      cognitiveServiceEventResultToWebSpeechRecognitionResult(recognizing.result, {
                        maxAlternatives: this.maxAlternatives,
                        textNormalization
                      })
                    ])
                  })
                );
              }
            }
          }
        }
        if (speechStarted) {
          this.dispatchEvent(new SpeechRecognitionEvent("speechend"));
        }
        if (soundStarted) {
          this.dispatchEvent(new SpeechRecognitionEvent("soundend"));
        }
        if (audioStarted) {
          this.dispatchEvent(new SpeechRecognitionEvent("audioend"));
        }
        if (finalEvent) {
          if (finalEvent.type === "result" && !finalEvent.results.length) {
            finalEvent = new SpeechRecognitionErrorEvent("error", { error: "no-speech" });
          }
          this.dispatchEvent(finalEvent);
        }
        this.dispatchEvent(new SpeechRecognitionEvent("end"));
        detachAudioConfigEvent();
      } catch (err) {
        console.error(err);
        throw err;
      } finally {
        unprepare();
        recognizer["dispose"](false);
      }
    }
  }
  return {
    SpeechGrammarList,
    SpeechRecognition,
    SpeechRecognitionEvent
  };
}

// src/SpeechServices/SpeechToText/createSpeechRecognitionPonyfill.ts
var { OutputFormat: OutputFormat2, SpeechConfig: SpeechConfig2, SpeechRecognizer: SpeechRecognizer3 } = SpeechSDK_default;
function createSpeechRecognitionPonyfill(options) {
  const {
    audioConfig,
    enableTelemetry,
    fetchCredentials,
    initialSilenceTimeout,
    looseEvents,
    referenceGrammars,
    speechRecognitionEndpointId,
    textNormalization
  } = patchOptions(options);
  if (!audioConfig && (!window.navigator.mediaDevices || !window.navigator.mediaDevices.getUserMedia)) {
    throw new Error(
      "web-speech-cognitive-services: This browser does not support Media Capture and Streams API and it will not work with Cognitive Services Speech Services."
    );
  }
  const createRecognizer = async (lang) => {
    const credentials = await fetchCredentials();
    let speechConfig;
    if (typeof credentials.speechRecognitionHostname !== "undefined") {
      const host = new URL("wss://localhost:443");
      host.hostname = credentials.speechRecognitionHostname;
      if (credentials.authorizationToken) {
        speechConfig = SpeechConfig2.fromHost(host);
        speechConfig.authorizationToken = credentials.authorizationToken;
      } else {
        speechConfig = SpeechConfig2.fromHost(host, credentials.subscriptionKey);
      }
    } else {
      speechConfig = typeof credentials.authorizationToken !== "undefined" ? SpeechConfig2.fromAuthorizationToken(credentials.authorizationToken, credentials.region) : SpeechConfig2.fromSubscription(credentials.subscriptionKey, credentials.region);
    }
    if (speechRecognitionEndpointId) {
      speechConfig.endpointId = speechRecognitionEndpointId;
    }
    speechConfig.outputFormat = OutputFormat2.Detailed;
    speechConfig.speechRecognitionLanguage = lang || "en-US";
    typeof initialSilenceTimeout === "number" && speechConfig.setProperty(import_microsoft_cognitiveservices_speech_sdk2.PropertyId.SpeechServiceConnection_InitialSilenceTimeoutMs, "" + initialSilenceTimeout);
    return new SpeechRecognizer3(speechConfig, audioConfig);
  };
  return createSpeechRecognitionPonyfillFromRecognizer({
    createRecognizer,
    enableTelemetry,
    looseEvents,
    referenceGrammars,
    textNormalization
  });
}

// src/SpeechServices/TextToSpeech/createSpeechSynthesisPonyfill.js
var import_event_target_shim3 = require("event-target-shim");
var import_async = require("on-error-resume-next/async");

// src/SpeechServices/TextToSpeech/AudioContextQueue.js
var import_memoize_one = __toESM(require("memoize-one"));

// src/SpeechServices/TextToSpeech/AudioContextConsumer.js
var AudioContextConsumer = class {
  constructor(audioContext) {
    this.audioContext = audioContext;
  }
  pause() {
    this.audioContext && this.audioContext.suspend();
    this.playingUtterance && this.playingUtterance.dispatchEvent(new CustomEvent("pause"));
  }
  resume() {
    this.audioContext && this.audioContext.resume();
    this.playingUtterance && this.playingUtterance.dispatchEvent(new CustomEvent("resume"));
  }
  async start(queue) {
    let utterance;
    while (utterance = queue.shift()) {
      this.playingUtterance = utterance;
      await utterance.play(this.audioContext);
      this.playingUtterance = null;
    }
  }
  stop() {
    this.playingUtterance && this.playingUtterance.stop();
    if (this.audioContext.state === "suspended") {
      this.audioContext.resume();
    }
  }
};

// src/SpeechServices/TextToSpeech/AudioContextQueue.js
var AudioContextQueue = class {
  constructor({ audioContext, ponyfill }) {
    this.consumer = null;
    this.paused = false;
    this.queue = [];
    this.getAudioContext = (0, import_memoize_one.default)(() => audioContext || new ponyfill.AudioContext());
  }
  pause() {
    this.paused = true;
    this.consumer && this.consumer.pause();
  }
  push(utterance) {
    this.queue.push(utterance);
    this.startConsumer();
  }
  resume() {
    this.paused = false;
    if (this.consumer) {
      this.consumer.resume();
    } else {
      this.startConsumer();
    }
  }
  get speaking() {
    return !!this.consumer;
  }
  async startConsumer() {
    while (!this.paused && this.queue.length && !this.consumer) {
      this.consumer = new AudioContextConsumer(this.getAudioContext());
      await this.consumer.start(this.queue);
      this.consumer = null;
    }
  }
  stop() {
    this.queue.splice(0);
    this.consumer && this.consumer.stop();
  }
};

// src/SpeechServices/TextToSpeech/SpeechSynthesisEvent.js
var import_event_target_shim = require("event-target-shim");
var SpeechSynthesisEvent = class extends import_event_target_shim.Event {
  constructor(type) {
    super(type);
  }
};

// src/SpeechServices/TextToSpeech/SpeechSynthesisUtterance.js
var import_event_as_promise = require("event-as-promise");
var import_event_target_shim2 = require("event-target-shim");

// src/SpeechServices/TextToSpeech/fetchSpeechData.js
var import_base64_arraybuffer = require("base64-arraybuffer");

// src/SpeechServices/TextToSpeech/buildSSML.js
function relativePercentage(value) {
  let relative = Math.round((value - 1) * 100);
  if (relative >= 0) {
    relative = "+" + relative;
  }
  return relative + "%";
}
function buildSSML({ lang, pitch = 1, rate = 1, text, voice, volume }) {
  return `<speak version="1.0" xml:lang="${lang}">
  <voice xml:lang="${lang}" name="${voice}">
    <prosody pitch="${relativePercentage(pitch)}" rate="${relativePercentage(rate)}" volume="${relativePercentage(
    volume
  )}">
      ${text}
    </prosody>
  </voice>
</speak>`;
}

// src/SpeechServices/TextToSpeech/isSSML.js
var SPEAK_TAG_PATTERN = /^\s*<speak(\s|\/?>)/u;
var XML_PROLOG_PATTERN = /^\s*<\?xml\s/u;
function isSSML(text) {
  return SPEAK_TAG_PATTERN.test(text) || XML_PROLOG_PATTERN.test(text);
}

// src/SpeechServices/TextToSpeech/fetchSpeechData.js
var DEFAULT_LANGUAGE = "en-US";
var DEFAULT_OUTPUT_FORMAT = "riff-16khz-16bit-mono-pcm";
var DEFAULT_VOICE = "Microsoft Server Speech Text to Speech Voice (en-US, AriaNeural)";
var EMPTY_MP3_BASE64 = "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";
async function fetchSpeechData({
  deploymentId,
  fetchCredentials,
  lang = DEFAULT_LANGUAGE,
  outputFormat = DEFAULT_OUTPUT_FORMAT,
  pitch,
  rate,
  text,
  voice = DEFAULT_VOICE,
  volume
}) {
  if (!text) {
    return (0, import_base64_arraybuffer.decode)(EMPTY_MP3_BASE64);
  }
  const { authorizationToken, region, speechSynthesisHostname, subscriptionKey } = await fetchCredentials();
  if (authorizationToken && subscriptionKey || !authorizationToken && !subscriptionKey) {
    throw new Error('Only "authorizationToken" or "subscriptionKey" should be set.');
  } else if (region && speechSynthesisHostname || !region && !speechSynthesisHostname) {
    throw new Error('Only "region" or "speechSynthesisHostnamename" should be set.');
  }
  const ssml = isSSML(text) ? text : buildSSML({ lang, pitch, rate, text, voice, volume });
  const hostname = speechSynthesisHostname || (deploymentId ? `${encodeURI(region)}.voice.speech.microsoft.com` : `${encodeURI(region)}.tts.speech.microsoft.com`);
  const search = deploymentId ? `?deploymentId=${encodeURI(deploymentId)}` : "";
  const url = `https://${hostname}/cognitiveservices/v1${search}`;
  const res = await fetch(url, {
    headers: {
      "Content-Type": "application/ssml+xml",
      "X-Microsoft-OutputFormat": outputFormat,
      ...authorizationToken ? {
        Authorization: `Bearer ${authorizationToken}`
      } : {
        "Ocp-Apim-Subscription-Key": subscriptionKey
      }
    },
    method: "POST",
    body: ssml
  });
  if (!res.ok) {
    throw new Error(`web-speech-cognitive-services: Failed to syntheis speech, server returned ${res.status}`);
  }
  return res.arrayBuffer();
}

// src/SpeechServices/TextToSpeech/subscribeEvent.js
function subscribeEvent(target, name, handler) {
  target.addEventListener(name, handler);
  return () => target.removeEventListener(name, handler);
}

// src/SpeechServices/TextToSpeech/SpeechSynthesisUtterance.js
function asyncDecodeAudioData(audioContext, arrayBuffer) {
  return new Promise((resolve, reject) => {
    const promise = audioContext.decodeAudioData(arrayBuffer, resolve, reject);
    promise && typeof promise.then === "function" && resolve(promise);
  });
}
function playDecoded(audioContext, audioBuffer, source) {
  return new Promise((resolve, reject) => {
    const audioContextClosed = new import_event_as_promise.EventAsPromise();
    const sourceEnded = new import_event_as_promise.EventAsPromise();
    const unsubscribe = subscribeEvent(
      audioContext,
      "statechange",
      ({ target: { state } }) => state === "closed" && audioContextClosed.eventListener()
    );
    try {
      source.buffer = audioBuffer;
      source.onended = sourceEnded.eventListener;
      source.connect(audioContext.destination);
      source.start(0);
      Promise.race([audioContextClosed.upcoming(), sourceEnded.upcoming()]).then(resolve);
    } catch (err) {
      reject(err);
    } finally {
      unsubscribe();
    }
  });
}
var SpeechSynthesisUtterance = class extends import_event_target_shim2.EventTarget {
  constructor(text) {
    super();
    this._lang = null;
    this._pitch = 1;
    this._rate = 1;
    this._voice = null;
    this._volume = 1;
    this.text = text;
    this.onboundary = null;
    this.onend = null;
    this.onerror = null;
    this.onmark = null;
    this.onpause = null;
    this.onresume = null;
    this.onstart = null;
  }
  get lang() {
    return this._lang;
  }
  set lang(value) {
    this._lang = value;
  }
  get onboundary() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "boundary");
  }
  set onboundary(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "boundary", value);
  }
  get onend() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "end");
  }
  set onend(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "end", value);
  }
  get onerror() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "error");
  }
  set onerror(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "error", value);
  }
  get onmark() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "mark");
  }
  set onmark(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "mark", value);
  }
  get onpause() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "pause");
  }
  set onpause(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "pause", value);
  }
  get onresume() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "resume");
  }
  set onresume(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "resume", value);
  }
  get onstart() {
    return (0, import_event_target_shim2.getEventAttributeValue)(this, "start");
  }
  set onstart(value) {
    (0, import_event_target_shim2.setEventAttributeValue)(this, "start", value);
  }
  get pitch() {
    return this._pitch;
  }
  set pitch(value) {
    this._pitch = value;
  }
  get rate() {
    return this._rate;
  }
  set rate(value) {
    this._rate = value;
  }
  get voice() {
    return this._voice;
  }
  set voice(value) {
    this._voice = value;
  }
  get volume() {
    return this._volume;
  }
  set volume(value) {
    this._volume = value;
  }
  preload({ deploymentId, fetchCredentials, outputFormat }) {
    this.arrayBufferPromise = fetchSpeechData({
      fetchCredentials,
      deploymentId,
      lang: this.lang || window.navigator.language,
      outputFormat,
      pitch: this.pitch,
      rate: this.rate,
      text: this.text,
      voice: this.voice && this.voice.voiceURI,
      volume: this.volume
    });
    this.arrayBufferPromise.catch();
  }
  async play(audioContext) {
    try {
      this.dispatchEvent(new SpeechSynthesisEvent("start"));
      const source = audioContext.createBufferSource();
      const audioBuffer = await asyncDecodeAudioData(audioContext, await this.arrayBufferPromise);
      this._playingSource = source;
      await playDecoded(audioContext, audioBuffer, source);
      this._playingSource = null;
      this.dispatchEvent(new SpeechSynthesisEvent("end"));
    } catch (error) {
      this.dispatchEvent(new ErrorEvent("error", { error: "synthesis-failed", message: error.stack }));
    }
  }
  stop() {
    this._playingSource && this._playingSource.stop();
  }
};
var SpeechSynthesisUtterance_default = SpeechSynthesisUtterance;

// src/SpeechServices/TextToSpeech/SpeechSynthesisVoice.js
var SpeechSynthesisVoice = class {
  constructor({ gender, lang, voiceURI }) {
    this._default = false;
    this._gender = gender;
    this._lang = lang;
    this._localService = false;
    this._name = voiceURI;
    this._voiceURI = voiceURI;
  }
  get default() {
    return this._default;
  }
  get gender() {
    return this._gender;
  }
  get lang() {
    return this._lang;
  }
  get localService() {
    return this._localService;
  }
  get name() {
    return this._name;
  }
  get voiceURI() {
    return this._voiceURI;
  }
};

// src/SpeechServices/TextToSpeech/fetchCustomVoices.js
async function fetchCustomVoices_({ customVoiceHostname, deploymentId, region, subscriptionKey }) {
  const hostname = customVoiceHostname || `${region}.customvoice.api.speech.microsoft.com`;
  const res = await fetch(
    `https://${encodeURI(hostname)}/api/texttospeech/v2.0/endpoints/${encodeURIComponent(deploymentId)}`,
    {
      headers: {
        accept: "application/json",
        "ocp-apim-subscription-key": subscriptionKey
      }
    }
  );
  if (!res.ok) {
    throw new Error("Failed to fetch custom voices");
  }
  return res.json();
}
async function fetchCustomVoices({ customVoiceHostname, deploymentId, region, subscriptionKey }) {
  const { models } = await fetchCustomVoices_({ customVoiceHostname, deploymentId, region, subscriptionKey });
  return models.map(
    ({ properties: { Gender: gender }, locale: lang, name: voiceURI }) => new SpeechSynthesisVoice({ gender, lang, voiceURI })
  ).sort(({ name: x }, { name: y }) => x > y ? 1 : x < y ? -1 : 0);
}

// src/SpeechServices/TextToSpeech/fetchVoices.js
async function fetchVoices({ authorizationToken, region, speechSynthesisHostname, subscriptionKey }) {
  const hostname = speechSynthesisHostname || `${encodeURI(region)}.tts.speech.microsoft.com`;
  const res = await fetch(`https://${hostname}/cognitiveservices/voices/list`, {
    headers: {
      "content-type": "application/json",
      ...authorizationToken ? {
        authorization: `Bearer ${authorizationToken}`
      } : {
        "Ocp-Apim-Subscription-Key": subscriptionKey
      }
    }
  });
  if (!res.ok) {
    throw new Error("Failed to fetch voices");
  }
  const voices = await res.json();
  return voices.map(({ Gender: gender, Locale: lang, Name: voiceURI }) => new SpeechSynthesisVoice({ gender, lang, voiceURI })).sort(({ name: x }, { name: y }) => x > y ? 1 : x < y ? -1 : 0);
}

// src/SpeechServices/TextToSpeech/createSpeechSynthesisPonyfill.js
var DEFAULT_OUTPUT_FORMAT2 = "audio-24khz-160kbitrate-mono-mp3";
var EMPTY_ARRAY = [];
function createSpeechRecognitionPonyfill2(options) {
  const {
    audioContext,
    fetchCredentials,
    ponyfill = {
      AudioContext: window.AudioContext || window.webkitAudioContext
    },
    speechSynthesisDeploymentId,
    speechSynthesisOutputFormat = DEFAULT_OUTPUT_FORMAT2
  } = patchOptions(options);
  if (!audioContext && !ponyfill.AudioContext) {
    console.warn(
      "web-speech-cognitive-services: This browser does not support Web Audio and it will not work with Cognitive Services Speech Services."
    );
    return {};
  }
  class SpeechSynthesis extends import_event_target_shim3.EventTarget {
    constructor() {
      super();
      this.queue = new AudioContextQueue({ audioContext, ponyfill });
      this.updateVoices();
    }
    cancel() {
      this.queue.stop();
    }
    getVoices() {
      return EMPTY_ARRAY;
    }
    get onvoiceschanged() {
      return (0, import_event_target_shim3.getEventAttributeValue)(this, "voiceschanged");
    }
    set onvoiceschanged(value) {
      (0, import_event_target_shim3.setEventAttributeValue)(this, "voiceschanged", value);
    }
    pause() {
      this.queue.pause();
    }
    resume() {
      this.queue.resume();
    }
    speak(utterance) {
      if (!(utterance instanceof SpeechSynthesisUtterance_default)) {
        throw new Error("invalid utterance");
      }
      const { reject, resolve, promise } = pDefer();
      const handleError = ({ error: errorCode, message }) => {
        const error = new Error(errorCode);
        error.stack = message;
        reject(error);
      };
      utterance.addEventListener("end", resolve);
      utterance.addEventList