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采样率不起作用？ #37

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mebtte opened this issue Jul 20, 2019 · 1 comment
Closed

采样率不起作用？ #37

mebtte opened this issue Jul 20, 2019 · 1 comment

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@mebtte
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mebtte commented Jul 20, 2019 

const recorder = new Recorder({ type: 'wav', sampleRate: 16000 });

设置采样率无效
image
依旧是浏览器默认的44100
@xiangyuecn
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xiangyuecn commented Jul 20, 2019 •
edited

图片中拿到的AudioBuffer是目测是你自己设置或者默认的吧（这个对象好像是解码出来的，差点被误导了😅） 音频源的原始数据，是浏览器的采样率是多少，它的采样率就是多少。

配置的采样率会在最终编码时生效，最终结果wav格式的采样率其实是可以通过文件大小计算出来的：65430/2/2.043=16013≈16000

@mebtte mebtte closed this as completed Jul 21, 2019
@mz24cn mz24cn mentioned this issue Aug 16, 2019
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@mebtte @xiangyuecn