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在浏览器压缩音频的解决方案？

[英]solutions to compress audio in browser?

原文 2012-03-09 14:38:48 1 1 javascript/ flash/ audio

I am working on getting audio recorded directly in browser and POSTed to a webserver. 我正在努力将音频直接录制到浏览器中并发布到网络服务器。 I am currently relying on flash to access the user microphone (using code derived from https://code.google.com/p/wami-recorder/ ) and passing the recorded Wav/pcm blob from flash to JS for upload (using XHR post). 我目前依靠flash来访问用户麦克风（使用源自https://code.google.com/p/wami-recorder/的代码）并将录制的Wav / pcm blob从flash传递给JS进行上传（使用XHR后）。 This works fine, but I am trying to avoid sending uncompressed WAV data (I can compress the audio on the server, but I am trying to limit CPU intensive work there). 这工作正常，但我试图避免发送未压缩的WAV数据（我可以压缩服务器上的音频，但我试图限制CPU密集型工作）。

Options I have found so far to compress to ogg on client side include: 到目前为止，我发现在客户端压缩到ogg的选项包括：

relying on lab features of flash to compress the audio to ogg (labs.byhook.com/2011/02/15/ogg-vorbis-encoder-for-flash-alchemy-series-part-1/). 依靠闪光灯的实验室功能将音频压缩到ogg（labs.byhook.com/2011/02/15/ogg-vorbis-encoder-for-flash-alchemy-series-part-1/）。 Since it is an experimental feature in flash, it's risky to rely on it. 由于它是闪存中的实验性功能，因此依赖它是有风险的。
porting a minimal subset of libvorbis to javascript so that the browser can compress the data. 将libvorbis的最小子集移植到javascript，以便浏览器可以压缩数据。 This probably sounds a bit silly, but I only need short audio bits (a few seconds) so performance may not be such an issue. 这可能听起来有点傻，但我只需要短音频位（几秒钟），因此性能可能不是这样的问题。 I have looked around, but couldn't find any such project going on. 我环顾四周，但找不到任何这样的项目。
a few other browser specific solutions such as http://firefogg.org which require substantial user-side install to work, which I don't want. 一些其他浏览器特定的解决方案，如http://firefogg.org ，需要大量的用户端安装才能工作，这是我不想要的。

I'm looking for a better option to solve this issue, if such an option exists. 如果存在这样的选项，我正在寻找更好的选择来解决这个问题。 I am obviously waiting for html5 getUserMedia() to work, but I need a solution in the meantime that works cross-browser (not necessarily 100%, but at least on major/recent browsers). 我显然在等待html5 getUserMedia（）工作，但我需要一个解决方案同时适用于跨浏览器（不一定是100％，但至少在主要/最近的浏览器上）。

1 个解决方案

Flash: https://github.com/maxl0rd/standingwave3 eg: www.jordansthings.com/blog/?p=5 support mp3. Flash： https ：//github.com/maxl0rd/standingwave3例如：www.jordansthings.com/blog/？p = 5支持mp3。

js compression: https://github.com/jpemartins/speex.js no good examples. js压缩： https ： //github.com/jpemartins/speex.js没有很好的例子。