Sound card testing

[Guest]

Hello,

I wish to automate the testing of soundcards to indicate the basic capability to play and record in stereo is working ok (using a loopback between speaker out and line in).

I'm looking for a program that displays a quantitative figure (such as total harmonic distortion) that can be compared with a simple test limit in a test report, in order to be said to pass.

Can this be done using BurnInTest or is SoundCheck needed? Alternatively can the screenshots of the recordings be saved to disk?

Thanks

[David (PassMark)]

BurnInTest has a sound card loopback test that can be used to give a simple pass / fail response based on a distortion level that you set.

SoundCheck might be used to investigate the distortion, but SoundCheck can't really be automated, nor does it produce a figure for harmonic distortion.

[scs102]

Ah so do you mean the pass/fail criteria or limit can be preset? This is fine as it will ensure our tests are repeatable (by anybody).

[David (PassMark)]

In BurnInTest, you can set the acceptable distortion level. (e.g. 5%). Anything above this level will will generate a Fail result.

This measures the distortion level for a simple sine wave.

So this should be repeatable by anyone, who has the same hardware, EMI environment and O/S settings.

[scs102]

Perfect thanks