On a web page,
Before, by calling the recorder, to realize the microphone recording, also can see naked data, draw the waveform diagram,
EncodeWAV inside, can generate a wav file blob,
My needs done the first step, the voice of naked data short-time energy draw,
But demand in the second step,
I need to load the mp3 files, wav or (not oneself use recorder to record of H5), is a local file,
How can I bare extract data? Waveform data,
I want to have an idea, but also with the above recorder, again a audio, audio broadcast this mp3 file, at the same time, use recorder to record down,
However, I got on my laptop, not recorded sound,
If they read wav file, parse him, I wouldn't use js parsing,

Excuse me, warrior, how to solve this problem,
thank you

CodePudding user response:

The

refer to the original poster zhtoad response:

on a web page,
Before, by calling the recorder, to realize the microphone recording, also can see naked data, draw the waveform diagram,
EncodeWAV inside, can generate a wav file blob,
My needs done the first step, the voice of naked data short-time energy draw,
But demand in the second step,
I need to load the mp3 files, wav or (not oneself use recorder to record of H5), is a local file,
How can I bare extract data? Waveform data,
I want to have an idea, but also with the above recorder, again a audio, audio broadcast this mp3 file, at the same time, use recorder to record down,
However, I got on my laptop, not recorded sound,
If they read wav file, parse him, I wouldn't use js parsing,

Excuse me, warrior, how to solve this problem,
Thank you,

https://blog.csdn.net/lu92649264/article/details/113175704

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