With pink noise you can't tell if the audio is played faster or slower. I tested this by playing ITU speech codec test sample aplay --device=plughw:0,7 male.wav and audio played back on 1x speed. Cheers, Mika On Tue, 2015-04-14 at 12:27 +0530, Sivakumar Thulasimani wrote: > Thanks for the update Mika. The issue will be that audio plays faster or > slower than normal. i.e it will be < 1x or > 1x. can you confirm if > audible sound plays after CD Clock change at 1x speed ? > > regards, > Sivakumar > On 4/14/2015 12:06 PM, Mika Kahola wrote: > > I tested this patch with the audio in place. With this setup in my HSW > > machine I can hear the pink noise played back with DP-HDMI cable > > attatched. > > > > speaker-test -c 2 -r 48000 -F S16_LE -t pink --device=plughw:0,7 > > > > Cheers, > > Mika > > > > On Tue, 2015-04-07 at 14:06 +0530, Sivakumar Thulasimani wrote: > >> where can i check this (audio driver) ? since there was no need for them > >> to check CD clock value till now i don't think they will be doing it. > >> also this needs to be changed in Display Audio controller, so not sure > >> if audio driver has access to it in the first place. will be good to > >> confirm this before merging as it will break display audio if it is not > >> programmed. > >> > >> if any one has setup this can be confirmed by just switching CD clock > >> after boot and playing an audio file. > >> > >> regards, > >> Sivakumar > >> > >> On 4/7/2015 1:59 PM, Ville Syrjälä wrote: > >>> On Tue, Apr 07, 2015 at 12:33:40PM +0530, Sivakumar Thulasimani wrote: > >>>> sorry if i am missing something, HSW and BDW requires display audio > >>>> controller to be updated with new values once CD clock is modified. how > >>>> is this accomplished here ? > >>> I'm hoping the audio driver will query the cdclk frequency after every > >>> modeset. > >>> > >> _______________________________________________ > >> Intel-gfx mailing list > >> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > >> http://lists.freedesktop.org/mailman/listinfo/intel-gfx > > > > > > > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
