Paulo Moura Guedes wrote: > I'm trying to get bit perfect output out of my linux box, but I can't find much > info on the web. I'm using ALSA. > > Some questions: > > - does Linux/ALSA features dynamic sample rates? > - is it possible to set the bit-depth? (in my case to 24 bit) > - what other variables do i have to consider in order to get bit transparent > ouput, > i.e., no resampling at all? > - is it possible to check if ouput is bit-perfect? > > Thanks in advance, > Paulo > All the answers are yes. If the hardware supports a particular rate, alsa will use it, on a per sound file basis. I.e. first sound file might be 24bit 48khz, alsa will output to the hardware using this. If the second sound file is 24bit 44.1khz, alsa will output to the hardware using that. If the hardware does not support a method to get bit perfect output to the hardware, i.e hardware does 48khz only, but sound file is 44.1khz, alsa will use a low quality resample method to at least get some sound. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
