[hochopeper]

A general question, I'm an audio geek that loves xbmc and I was thinking maybe there is a way to increase test coverage for audio output. I wanted to put a proposal to you gents before I start writing some code and see if there is something I've missed.

I'm no good at C and a bit of a hack with Python but I can make things that seem to work ok

I thought if I generated a set of test files of some arbitrary waveform at a variety of sample rates (and maybe bit depths?) I could set up a Python script on the host OS with PyAudio to read the input and trigger xbmc to playback the test file and read the loopback recording and test it for bit perfect and ensure that things are silent when they should be.

Some notes:

- Should be able to test this for multichannel analogue looped back to ensure that difference is only noisefloor/distortion.

- For spdif we can only decode PCM so no multichannel tests there.

- For hdmi there is no hdmi input possible so no test there.

For me, initially the PCM spdif test would be my focus.

Would this be of help for you guys when testing for bugs in the audio playback chain?