Reinhold Jordan wrote: > I have a problem with sound-quality. For testing I have > generate a sine as wave-file with 1 kHz signal and 8 kHz > sampling rate. If I play this file with > aplay sine.wav > the signal is linear interpolated on some sound cards, > e. g. all Creativ, AC'97 but spline interpolated (?) on > Cyrus Logic.
The hardware of most sound cards only does linear interpolation. > Is there a way to get better sound quality without interpolate > the signal myself? It would be possible to run the sound card at a fixed frequency and to let ALSA handle the resampling, but ALSA's rate plugin currently is limited to linear interpolation, too, so you would have to add a better resampler to it. Regards, Clemens ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
