@echogarden/gnuspeech-wasm/dist/GnuSpeech.js

WebAssembly port of the GnuSpeech speech synthesizer.

import { wrapEmscriptenModuleHeap } from 'wasm-heap-manager';
import { defaultTrmControlModelFileContent } from './DefaultTrmControlModel.js';
export async function synthesize(text, options) {
    options = { ...defaultGnuSpeechOptions, ...options };
    let modifiedConfigFileContent = defaultTrmControlModelFileContent;
    modifiedConfigFileContent = modifiedConfigFileContent.replace('voice_name = male', `voice_name = ${options.voice}`);
    modifiedConfigFileContent = modifiedConfigFileContent.replace('tempo = 1.0', `tempo = ${options.tempo}`);
    modifiedConfigFileContent = modifiedConfigFileContent.replace('control_rate = 250.0', `control_rate = ${options.controlRate}`);
    const m = await getWasmModule();
    const dataPath = '/data/en';
    m.FS.writeFile(`${dataPath}/trm_control_model.txt`, modifiedConfigFileContent);
    const manager = wrapEmscriptenModuleHeap(m);
    const textRef = manager.allocNullTerminatedUtf8String(text);
    const outputFilePath = manager.allocNullTerminatedUtf8String('./out.wav');
    const configDirPathRef = manager.allocNullTerminatedUtf8String(dataPath);
    const trmParamFilePathRef = manager.allocNullTerminatedUtf8String('./out-params.txt');
    m._GnuSpeech_synthesizeToFile(textRef.address, outputFilePath.address, configDirPathRef.address, trmParamFilePathRef.address, options.debug);
    const outputFileContent = m.FS.readFile(outputFilePath.value);
    const outputParamsFileContent = m.FS.readFile(trmParamFilePathRef.value);
    textRef.free();
    outputFilePath.free();
    configDirPathRef.free();
    trmParamFilePathRef.free();
    return {
        audioData: outputFileContent,
        params: outputParamsFileContent
    };
}
let wasmModule;
async function getWasmModule() {
    if (wasmModule) {
        return wasmModule;
    }
    const { default: initializer } = await import('../wasm/gnuspeech.js');
    wasmModule = await initializer();
    return wasmModule;
}
export const defaultGnuSpeechOptions = {
    voice: 'male',
    tempo: 1.0,
    controlRate: 250.0,
    debug: false,
};
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