Guilherme Longo wrote: > Hi all! > > Mates, I am following the example PCM.C that I found at alsa web site. > its a sine wave generator. > I am looking for a control that alsa provides to control the amplitude > of the wave. > > As I could found so for, there is just frequency control... I didn't > find any amplitude control. This line int pcm.c is not amplitude control? unsigned int maxval = (1 << (snd_pcm_format_width(format) - 1)) - 1; it's an int, so you probably need to alter this a bit to allow you to have arbitrary control over the amplitude (ie: multiply by a float less than 1.0) HTH johnu > * I don't want to control the volume using alsamixer or even my sound... > I want to generate a wave with predefined amplitude. > > Does anyone could give me a little help?? > > Thanks a lot! > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
