On Tue, 2009-06-30 at 15:54 -0700, David Brownell wrote: > On Tuesday 30 June 2009, Steve Chen wrote: > > Can you try > > > aplay -D hw:0,1 r441_c2.wav > > > > If you see something like > > > > Warning: rate is not accurate (requested = 44100Hz, got = 48000Hz) > > please, try the plug plugin > > > > That means McBSP/AIC33 are not setup to handle sample rate of 44.1K > > directly. The sample rates are covered by software. The problem is > > likely in the area of rate conversion. > > And ... seeking someone who has a bit of spare time, > a DM6446 EVM, and interest in solving it: that EVM > can switch audio clocking at runtime, among six different > sample rates (of which those are two). > > So it would be interesting to get that working. :) >
Looking at the code, I think support for various sample rates for boards that uses aix3x are in place. The values to correctly divide down the clock are calculated in aic3x_hw_params. I think it is a matter of making AIC3X the clock master, advertise the rates, and test... simple right :-) > > > > If you don't see the warning, McBSP/AIC33 is setup to handle 44.1K > > directly. You man want to check with clock settings (make sure AIC33 is > > setup as the master). > > _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
