:: Re: [DNG] Sound (Was: My experienc…
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著者: Joel Roth
日付:  
To: dng
題目: Re: [DNG] Sound (Was: My experience with Devuan Alpha2)
Klaus Ethgen wrote:
>
> First, please answer on the list only and not via group reply. There is
> no need to add my own address to the recipients.
>
> Am Do den 2. Jul 2015 um 12:37 schrieb Daniel Reurich:
> > >What will be the alternatives? ALSA never worked for me to a usefull
> > >state. It has partly translated config files but not in the parser,
> > >has always cracking sound and kernel panics. It lags the ability to
> > >play multiple streams and more.
> >
> > What sort of sound card/chipsets?
>
> Well, all sort from consumer grade to a bit betterones. I have to admit
> that I never tried a high end chipset.
>
> Currently I am using:
>    ~> ossinfo
>    Version info: OSS 4.2 (b 2010/201503091929) (0x00040100) GPL
>    Platform: Linux/x86_64 4.0.7 #1 SMP Tue Jun 30 19:22:02 CET 2015 (ikki)
>    [...]
>    Device objects
>     0: osscore0 OSS core services
>     1: oss_hdaudio0 Intel HD Audio interrupts=4454425 (4454425)
>        HD Audio controller Intel HD Audio
>        Vendor ID    0x80863a3e
>        Subvendor ID 0x10438357
>     Codec  0: ALC888 (0x10ec0888/0x104383c0)
>     2: oss_usb0 USB audio core services

>
>    MIDI devices (/dev/midi*)

>
>    Mixer devices
>     0: High Definition Audio ALC888 (Mixer 0 of device object 1)

>
>    Audio devices
>    HD Audio play front               /dev/oss/oss_hdaudio0/pcm0  (device index 0)
>    HD Audio play rear                /dev/oss/oss_hdaudio0/pcm1  (device index 1)
>    HD Audio play center/LFE          /dev/oss/oss_hdaudio0/pcm2  (device index 2)
>    HD Audio play side                /dev/oss/oss_hdaudio0/pcm3  (device index 3)
>    HD Audio play pcm4                /dev/oss/oss_hdaudio0/pcm4  (device index 4)
>    HD Audio play spdif-out           /dev/oss/oss_hdaudio0/spdout0  (device index 5)
>    HD Audio play spdifout            /dev/oss/oss_hdaudio0/spdout1  (device index 6)
>    HD Audio rec mix                  /dev/oss/oss_hdaudio0/pcmin0  (device index 7)
>    HD Audio rec mix                  /dev/oss/oss_hdaudio0/pcmin1  (device index 8)

>
> But the most is due the really bad code quality of alsa.


> For example the localizing problem. I use tu have a locale that has the
> "," as decimal divider. Now, I have to write floating point values in
> .asound with a "," instead of a "." to get parsed but then, the code
> behind the parser does not know what to do with the ",".


If you are a casual user of ALSA, you won't need *any* .asoundrc.

> Another problem are the kernel panics that happens very often within
> alsa. The best what I get was about one hour between panics. Usual I get
> panics and oops after two minutes.


This is probably specific to your system/kernel/hardware.
ALSA is used very widely and reliably. More likely you need
help to troubleshoot your system.

You can try asking on the Linux Audio Users mailing list.

Cheers,

Joel




> > I've used it on Digital Audio
> > Workstations (using jackd) and had very little trouble like that. I can't
> > see pulseaudio being able to work around fundamental issues that alsa has
> > seen pulseaudio uses alsa.
> >
> > I've used it with pro and semi pro sound cards as well as all manner of
> > consumer chipsets and had very little issues.
> > >
> > >On the other hand, OSS (OSS4) did always work and is the easier to
> > >implement solution. It supports natively sound multiplexing and
> > >several channels.
> > >
> > >Unfortunately some applications does refuse to work with oss, even
> > >applications that was long OSS only (Teamspeak, commercial product)
> > >
> > >Pulsaudio was /one/ solution to mitigate that but no good solution as
> > >it adds many problems with sound.
> > >
> > >So I am interested in the strategy, devuan will go here.
> > >
> > I think we will support as many options as possible and let people choose.
> > But as with systemd, if any solution prevents being able to support other
> > solutions, then it's out the door.
> >
> > That said, pulseaudio should be amenable with a bit of 'gentle persuasion'
> > from my sledge hammer :P
> >
> >
> > --
> > Daniel Reurich
> > Centurion Computer Technology (2005) Ltd.
> > 021 797 722
> >
> Gruß
>    Klaus
> - -- 
> Klaus Ethgen                              http://www.ethgen.ch/
> pub  4096R/4E20AF1C 2011-05-16   Klaus Ethgen <Klaus@???>
> Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C

>
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--
Joel Roth