Hi folks. I wrote a patch for my RPI with kernel 4.4 to support 384kHz. That's the max_rate my I2S-HifiBerryDac+ Pro supports.
I figured today, that all standard kernels support just 192kHz. At that 384kHz rate internal PCM5122 DAC filters get bypassed. That's what might make it an interesting option. I ran sox as player against it. No problem. The DAC plays at 384khz. Next I wanted to try squeezelite. I fixed a conversion rule on LMS for resampling to 384kHz. My squeezelite with Marcoc patch fails with that input, respectively wants to downsample. In the log I find this: ############### [17:03:09.472613] sendHELO:126 cap: Model=squeezelite,AccuratePlayPoints=1,HasDigitalOut=1,HasPolarityInversion=1,Firmware=v1.8.2 (R2),ModelName=SqueezeLite-R2,MaxSampleRate=192000,flc,aif,pcm,mp3 [17:28:05.491006] alsa_open:355 opening device at: 384000 [17:28:05.492842] alsa_open:385 reopening device hw:0,0 in plug mode as plughw:0,0 for resampling [17:28:05.497286] alsa_open:406 opened device plughw:0,0 using format: S32_LE sample rate: 384000 mmap: 0 [17:28:05.498434] alsa_open:485 buffer: 65536 period: 4 -> buffer size: 65536 period size: 16384 [17:28:05.499097] alsa_open:502 unable to set hw params: Invalid argument [17 ##################### What do I have to do to get native 384kHz streamed? Any ideas? Thx soundcheck ::: ' Touch Toolbox and more' (http://soundcheck-audio.blogspot.com) ::: by soundcheck ------------------------------------------------------------------------ soundcheck's Profile: http://forums.slimdevices.com/member.php?userid=34383 View this thread: http://forums.slimdevices.com/showthread.php?t=97046 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
