Re: sndio and bit perfect playback

On 23/01/13 12:42, Jan Stary wrote:
> On Jan 09 13:10:09, eurydice@riseup.net wrote:
> > I was able to distinguish between samples created by
> > audio/sox and aucat(1) in informal AB/X testing on my 7th generation X1 Carbon
> > with HiFiMan Sundara headphones plugged in. To describe the circumstances +
> > outcome briefly: 9 out of 10 correct in 10 trials
>
> http://stare.cz/.tmp/resample/
> Which is which?

That's not how AB/X tests work, but it also doesn't matter because they're all
the same file.

$ for num in $(seq -w 1 10); do ftp http://stare.cz/.tmp/resample/$num.wav > /dev/null 2>&1; done

$ for num in $(seq -w 1 10); do sha256 ./$num.wav; done
SHA256 (./01.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./02.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./03.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./04.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./05.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./06.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./07.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./08.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./09.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099
SHA256 (./10.wav) = 772559e7f4df296757a449832d60da46efe7bed84d3af816d5a0d287f7dd9099

https://en.wikipedia.org/wiki/ABX_test