问题
If I have a text file of sample amplitudes (0-26522), how can I create a playable audio file from them?
I have a vague recollection of tinkering with .pcm files and 8-bit samples way back in the nineties.
Is there any software to automatically create an audio file (PCM or other format) from my samples? I found SoX, but I even after looking at the documentation I can't figure out if it can do what I want, and if so how...
回答1:
GUI audio workstation called Audacity that lets you do this
File -> Import -> Raw Data
Encoding: Signed 16-bit PCM // even though your ints are unsigned it still works
Byte order: little endian
Channels 1 channel mono
then just hit Import
to confirm this works, in a text editor I just did a ( cut N paste followed by select all paste,paste,paste,paste ) of below list of ints about 10 times to generate several thousand ints in a vertical column ... this is my toy input file ... after above Import just save by doing
File -> Export Audio
where you choose which output format ( mp3, aac, PCM, ...) once I did this the output mp3 is playable ... using my toy input file I did hear a sine tone
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来源：https://stackoverflow.com/questions/43546491/create-audio-file-from-samples-of-amplitude