如何从JavaScript使用Opus编解码器 [英] How can I use Opus Codec from JavaScript

问题描述

我想看看是否有可能使用 getUserMedia 或最新浏览器中的类似内容直接访问Opus.

I would like to see if it's possible to have direct access to Opus using getUserMedia or anything similar from the latest browsers.

我已经对此进行了很多研究，但没有取得好的结果.

I've been researching on it a lot but with no Good results.

我知道 webkitSpeechRecognition API中实际上使用了Opus或Speex.我想做语音识别，但是要使用我自己的服务器而不是Google的服务器.

I'm aware that either Opus or Speex are actually used in webkitSpeechRecognition API. I would like to do speech recognition but using my own server rather than Google's.

推荐答案

因此，关于Emscripten的建议很多，但没有人建议，所以我移植了编码器

So there are a lot of suggestions about Emscripten but nobody did, so I ported the encoder opus-tools to JavaScript using Emscripten. Dependent on what one has in mind, there are now the following opportunities:

• 编码FLAC，WAVE，AIFF，RAW文件 ||演示 ||Web Worker大小:1.3 MiB
• 对原始内容进行编码，无需容器即可立即处理或发送 ||演示 ||Web Worker大小:0.6 MiB
• 从 getUserMedia 流中的Ogg-Opus和WAV编码/li>
• 使用Mozilla Firefox时，可以使用 MediaRecorder ，它还可以与 AudioContext.decodeAudioData()
一起在支持的平台上将任意声音文件转换为Opus格式.

• Encoding FLAC, WAVE, AIFF, RAW files || demo || Web Worker size: 1.3 MiB
• Encoding raw stuff for immediately processing or sending without container || demo || Web Worker size: 0.6 MiB
• Encoding to Ogg-Opus and WAV from getUserMedia stream
• When using Mozilla Firefox, it's possible to use a MediaRecorder, which would also allow to convert arbitrary sound files into Opus format on supported platforms together with AudioContext.decodeAudioData()

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