@mymusictaste/async-audiorecorder/dist/esm/listDevices.js

node-audiorecorder with async/await & typescript support

import { exec } from "node:child_process";
import { promisify } from "node:util";
const execAsync = promisify(exec);
/**
 * Executes the appropriate command to list available recording devices, automatically detecting the platform.
 * You can also pass the platform as an argument to override the automatic detection.
 */
export async function listRecordingDevices(platform = process.platform) {
    let probeCommand;
    let command;
    switch (platform) {
        case "darwin":
            probeCommand = "which rec";
            command = "rec -V6 -n -t coreaudio junkname 2>&1 || true";
            break;
        case "win32":
            probeCommand = "where rec";
            command = "rec -V6 -n -t waveaudio junkname 2>&1 || true";
            break;
        case "linux":
            probeCommand = "which arecord";
            command = "arecord -l";
            break;
        default:
            throw new Error("Unsupported platform");
    }
    // probe for the command
    try {
        await execAsync(probeCommand);
    }
    catch (e) {
        throw new Error(`Could not find the command ${probeCommand}. Please install it and try again.`);
    }
    const { stdout } = await execAsync(command);
    return parseOutputByPlatform(stdout, platform);
}
function parseOutputByPlatform(output, platform) {
    const devices = [];
    switch (platform) {
        case "darwin":
        case "win32":
            const recRegex = /Found Audio Device "(.+)"\n/g;
            let recMatch;
            while ((recMatch = recRegex.exec(output))) {
                devices.push({
                    device: recMatch[1],
                    label: recMatch[1],
                });
            }
            break;
        case "linux":
            const arecordRegex = /card (\d+): (.+?) \[.+?\], device (\d+):/g;
            let arecordMatch;
            while ((arecordMatch = arecordRegex.exec(output))) {
                const cardId = arecordMatch[1];
                const devId = arecordMatch[3];
                const device = `pluginhw:${cardId},${devId}`;
                const label = arecordMatch[2];
                devices.push({ device, label });
            }
            break;
    }
    return devices;
}
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