Neat, thanks for doing this!  Ricardo and I just had a meeting today about the regression/sanity test suite for Ubuntu LEBs, and this should definitely be one of the tests in it.<br><br>Thanks,<br>Paul Larson<br><br><div class="gmail_quote">

On Mon, Nov 28, 2011 at 8:01 PM, Kurt Taylor <span dir="ltr">&lt;<a href="mailto:kurt.taylor@linaro.org">kurt.taylor@linaro.org</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

Hi everyone,<br><br>Last week I did an initial drop of the end to end audio test we have been discussing.<br><br>The idea is fairly simple, play a sine wave and test the audio stack by sampling/testing the sine back in via loopback cable. The app is called testfreq and is driven by a script called e2eaudiotest. It opens and configures the audio device, takes a sample and then does a discrete fourier transformation to find the frequency using the fftw3 library. The test script driver uses speaker-test to play a sine wave at A 440, which for now is the test frequency. It&#39;s still basic at this point, but it does work on my system. There is a lot of additional things I&#39;d like to do, initial stack configuration, passing in the device, passing the test frequency, doing more auto detection, clean up the code, etc, but I wanted to start getting feedback. Any and all would be appreciated.<br>



<br>Have a look, and if you have a loopback cable, give it a spin:<br><br><a href="http://git.linaro.org/gitweb?p=people/kurt-r-taylor/e2eaudiotest.git" target="_blank">http://git.linaro.org/gitweb?p=people/kurt-r-taylor/e2eaudiotest.git</a><br>



<br>You can also read more about it and check my progress here:<br><br><a href="https://blueprints.launchpad.net/linaro-multimedia-project/+spec/linaro-mmwg-e2eaudiotesting-basic" target="_blank">https://blueprints.launchpad.net/linaro-multimedia-project/+spec/linaro-mmwg-e2eaudiotesting-basic</a><br>



<br>Enjoy!<br clear="all"><font color="#888888">
<br>-- <br><br>Kurt Taylor (irc krtaylor)<br>Linaro Multimedia<span style="font-size:10pt;color:rgb(0,176,80)" lang="EN-US"><br><a href="http://www.linaro.org/" target="_blank"><span style="color:rgb(0,68,252)">Linaro.org</span></a><b> </b></span><b><span style="font-size:10pt" lang="EN-US">│ </span></b><span style="font-size:10pt" lang="EN-US">Open source software for ARM SoCs</span><span style="font-size:10pt" lang="EN-US"><br>




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