在JavaScript中将AAC转换为Opus

问题描述

如何在javascript中将aac文件转换为opus？找不到任何可以执行此操作的库。

我尝试使用aurora作为解码器和@discordjs/opus作为编码器来执行此操作，但是编码器由于未知错误而失败。

我的代码看起来像这样

var AV = require('av');
require('aac');

const { OpusEncoder } = require('@discordjs/opus');
const encoder = new OpusEncoder(48000,2);

var toBuffer = require('typedarray-to-buffer');

const fileAddr = './temp/1599913142871.aac';

var asset = AV.Asset.fromFile(fileAddr);

asset.decodeToBuffer(function(buffer) {
    const buf = toBuffer(buffer);
    var encodedPacket = encoder.encode(buf);
    console.log('123');
});

asset.start();

这是程序完成后的错误跟踪。查看此错误，我知道编码器中某处存在该错误。

    /Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/asset.js:126
        return callback(buf);
               ^
Error: Unknown failure
    at /Users/pluhin/projects/anyvoice/test-convert-audio/test.ts:15:33
    at Asset.<anonymous> (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/asset.js:126:16)
    at Asset.cb (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/core/events.js:51:19)
    at Asset.EventEmitter.emit (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/core/events.js:64:12)
    at Class.<anonymous> (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/asset.js:202:24)
    at Class.EventEmitter.emit (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/core/events.js:64:12)
    at Class.Decoder.decode (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/decoder.js:90:14)
    at Class.<anonymous> (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/decoder.js:54:26)
    at Class.EventEmitter.emit (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/core/events.js:64:12)
    at FileSource.<anonymous> (/Users/pluhin/projects/anyvoice/test-convert-audio/node_modules/av/src/demuxer.js:51:24)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test-convert-audio@1.0.0 start: `npx ts-node test.ts`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the test-convert-audio@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/pluhin/.npm/_logs/2020-09-13T09_47_59_012Z-debug.log

也许您可以帮助我找到另一种转换方式。

解决方法

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