Sound troubles on 12.1

[Andrea Venturoli]

On 2020-02-04 09:49, Andrea Venturoli wrote:
> Hello.
> 
> On my PC I have two soundcards and they always worked perfectly up to 11.3.
> Lately I upgraded to 12.1 and now one of them plays bad: sound is slowed 
> and crackling as if the output could not work up to speed.
> 
> Relevant part of dmesg:
>> FreeBSD 12.1-RELEASE-p2 #2 r357334M: Sun Feb  2 10:23:26 CET 2020
>> ...
>> hdac0: <ATI (0x970f) HDA Controller> mem 0xfe7e8000-0xfe7ebfff irq 19 
>> at device 5.1 on pci1
>> ...
>> hdac1: <ATI SB600 HDA Controller> mem 0xfe5f4000-0xfe5f7fff irq 16 at 
>> device 20.2 on pci0
>> ...
>> emu10kx0: <Creative SBLive! Value [CT4850]> port 0xdc00-0xdc1f irq 20 
>> at device 5.0 on pci4
>> pcm0: <EMU10Kx DSP front PCM interface> on emu10kx0
>> pcm0: <TriTech TR28023 AC97 Codec>
>> pcm1: <EMU10Kx DSP rear PCM interface> on emu10kx0
>> ...
>> hdacc0: <ATI RS690/780 HDA CODEC> at cad 0 on hdac0
>> hdaa0: <ATI RS690/780 Audio Function Group> at nid 1 on hdacc0
>> pcm2: <ATI RS690/780 (HDMI)> at nid 3 on hdaa0
>> hdacc1: <Realtek ALC892 HDA CODEC> at cad 0 on hdac1
>> hdaa1: <Realtek ALC892 Audio Function Group> at nid 1 on hdacc1
>> pcm3: <Realtek ALC892 (Rear Analog 7.1/2.0)> at nid 20,22,21,23 and 
>> 24,26 on hdaa1
>> pcm4: <Realtek ALC892 (Front Analog)> at nid 27 and 25 on hdaa1
>> pcm5: <Realtek ALC892 (Rear Digital)> at nid 30 on hdaa1
>> pcm6: <Realtek ALC892 (Onboard Digital)> at nid 17 on hdaa1
> 
> Issuing "mplayer -ao oss:/dev/dsp0 Track_03.WAV" works perfectly, with 
> output from the "front" SBLive jack.
> 
> Issuing "mplayer -ao oss:/dev/dsp1 Track_03.WAV" outputs sound from the 
> motherboard, but, as I said, it's garbled!
> 
> Any hint?

I'll correct myself: what is NOT working properly is the SBLive 'rear' 
audio out.
Still I'll appreciate some hint.

  bye & Thanks
	av.