Michel Benoit wrote: > Hi > > Does anyone have some code examples that show how to send pcm samples > directly to an alsa driver. I'm (still) having trouble building/using > alsa-lib and I want to make sure that my driver works correctly. If I > understand correctly it is possible to send sound samples using the > alsa driver api only (no alsa-lib). > > All I want to do for now is send a fixed sine wave to the driver. I > saw some code snippets that seemed to do just that in a recent email > on this list but it would help a lot if I could have a look at the > complete application. > > Thanks, > > Michel There is an alsa tool already available to do the task. It is called "speaker-test" speaker-test -c2 -Dplug:front -twav (voices) speaker-test -c2 -Dplug:front -tsine (sine wave) speaker-test -c2 -Dplug:front -tpink (pink noise) You can then use any device name you wish to test. James _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
