[mikeash]

The wav file is decompressed, so you can’t just look at the size of the file.

[oneweekwonder]

I'm not looking at the file size. I'm looking at the kbps the os reported for the wave file, which is 768kbps. Where 6 Kbit/sec mentioned.

[mikeash]

The reported kbps is just the file size divided by the duration.