Convert wav file from 16 bit to 8 bit

Question

Esraa abd Altoni 2020-8-29

评论： Esraa abd Altoni 2020-9-1

I read file wav in 16 bit How covert wav to 8 bit depth

Peter O 2020-8-29

编辑：Peter O 2020-8-29

Be aware that an 8-bit audio signal will not sound great. There's a couple methods:

Just Truncate. Ignore the least significant bits and chop them off.
Apply Dithering. You still truncate the signal, but you also add some "random" noise at the base. For audio, this is a common operation because it helps reduce the perceived degradation from losing those bottom bits. There's a number of algorithms to do this, and they involve intelligently adding noise at the bottom bit levels of the signal. See the wikipedia article for more info: https://en.wikipedia.org/wiki/Dither

Answer 1

Ameer Hamza 2020-8-29

Specify the bit per sample option to the audiowrite function. For example

[y, Fs] = audioread('handel.wav');
audiowrite('handle2.wav', y, Fs, 'BitsPerSample', 8);

Thanks Ameer hamza