Re: [Alsa-user] Best supported cards?

2008-01-02 Thread Darrell Bellerive
I bought the M-Audio Audiophile 2496 PCI card based upon recommendations on 
this mailing list several years ago. Some people seem to have it working 
fine, but despite days of trying to configure it, I have never gotten it to 
work to it's full potential.

If you understand the intricacies of sound in Linux, you probably stand a good 
chance of getting it to work well. Just don't expect to plug the card in and 
have everything work.

Someday I will take a few weeks and see if I can follow the source code and 
read all the manuals for everything sound related in Linux. Until then I will 
just live with the problems.

Here's what I have not been able to get to work:
Full duplex,
Recording in Audacity without introducing clicks into the captured audio,
Getting Audacity to play without a few second delay and a bunch of clicks and 
pops,
Getting Baudline to actually generate a tone,
Getting xdemorse configured to recognize the sound card
and getting various sound applications to actually share the card nicely.

I have never even tried the S/PDIF I/O, so don't know if or how well it works.

If you do get an Audiophile 2496 and get it working please document what you 
have done and post it. For me and a few others who don't understand all there 
is to know about sound in Linux, a how-to on this card would be most welcome.

Darrell

On Wednesday 26 December 2007 08:19, Chris Stranex wrote:
 Take a look at the M-Audio range of PCI cards.

 I think all of them have S/PDIF In and Out and they are supported by
 ALSA. The Audiophile range are pretty cheap but good quality (I don't
 have one but I've heard they are good)


-- 
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada

-- 
Darrell Bellerive

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Re: [Alsa-user] Best supported cards?

2008-01-02 Thread James Shatto
 Here's what I have not been able to get to work:
 Full duplex,

Not sure about the full duplex part, as not all cards are full duplex.  My 
M-Audio Delta 44 says Full Duplex on the box.  And seems to be just that.  My 
laptop(ATI IXP) on the other hand can do full duplex, BUT... there's some bleed 
over of the playing track into the recorded track.  And there's just too much 
noise from the plug-in power / bias voltage that powers electret style 
microphones.  You might also try disabling the onboard soundcard in the 
bios/cmos.  Or otherwise indexing the Audiophile's alsa driver to card 0.  Or 
using defaults.pcm.card # in your asoundrc, where # is the card you want to use 
by default as shown in /proc/asound/cards.

# in /etc/modprobe.d/alsa_custom
# my own non distro supplied modules.conf style configuration

# for my Delta 44
options  snd-ice1712  index=0

# for my Mobile Pre
options  usb-audioindex=2
# note: my ati ixp takes up 0 AND 1 because of the ac97 modem part.

# end alsa_custom


# in ~/.asoundrc

# when I'm too lazy to use jackd or re-index my drivers
# or customize whatever sound app to use something other
# than the default card(0).
defaults.pcm.card 2
# where 2 is the card that I want to use
# as listed in /proc/asound/cards

# end .asoundrc



 Recording in Audacity without introducing clicks into the captured audio,
 Getting Audacity to play without a few second delay and a bunch of clicks and 
 pops,

I've found several things to cause this on my laptop.  The cable running to the 
mic not quite being fully shielded from RFI.  Even though it may claim to be 
shielded.  Just don't put the cable on/near your LCD or CRT.  The other cause 
is lack of realtime scheduling.  i.e. If I'm doing some network traffic while 
recording.  Solution below (for me anyway).

# in /etc/security/limits.conf

@audio  -  rtprio   99
@audio  -  nice -10
@audio  -  memlock  unlimited

# end of limits.conf

In conjunction with using jackd -R -d alsa -d hw:0 -r 48000(as a user in the 
audio group, with the above mods.  Or as root without.), I can get around the 
clicks and pops.  You may have to recompile audacity to use port audio (v19) to 
use alsa natively.  If your distro doesn't already do that.  I find ardour to 
be a little more reliable in the recording department.

On a side note, using a cell phone in close proximity to my audio gear seems to 
introduce some RFI to my stereo.  Even having a cell phone that's on, but not 
currently in use will do some of that at random intervals.  I know it's the 
cell phone because moving it to the other room stops affecting the gear in my 
room, and starts affecting it in the other room.  Sort of a morse code D D as 
heard on my speakers when stereo is on and the cell phone is close enough to 
it.  Just random static when actually using the cell phone.  Apparently cell 
phones put out quite a signal.

HTH

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Re: [Alsa-user] Best supported cards?

2007-12-27 Thread Frank Barknecht
Hallo,
Tom Lanyon hat gesagt: // Tom Lanyon wrote:

 The M-Audio cards are based on the Envy24HT chipset and are said to be  
 well supported; can I assume that other cards using this chipset are  
 well supported too? The Chaintech AV-710 is Envy24PT based and has  
 digital toslink output. It's also available locally for $30-40.

Cards based on the Envy chips (ICE1712, ICE1724) have high chances of
being supported and the chips is very good in itself. However the
chipset alone is no guarantee for a supported card, so it's better to
take a look at the soundcard matrix. But even this is sometimes out of
date, so an even better bet would be to use the source, Luke: If you
can browse the ALSA sources, you may find references to cards in
question. 

For your chaintech card, there are some promising results when grepping for
chaintech in my (older) kernel sources:

/usr/src/linux/sound/pci/ice1712/amp.c: /* Chaintech AV-710 has another codecs, 
which need initialization */
/usr/src/linux/sound/pci/ice1712/amp.c: .name = Chaintech AV-710,
/usr/src/linux/sound/pci/ice1712/amp.h:
{Chaintech,AV-710},
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.c: .name = Chaintech 
ZNF3-150,
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.c: .name = Chaintech 
ZNF3-250,
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.c: .name = Chaintech 
9CJS,
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.h:
{Chaintech,ZNF3-150},\
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.h:
{Chaintech,ZNF3-250},\
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.h:
{Chaintech,9CJS},\

So it seems, at least someone has started to work on it. I don't know
the status, though.

Ciao
-- 
 Frank Barknecht _ __footils.org__

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Re: [Alsa-user] Best supported cards?

2007-12-27 Thread Sergei Steshenko
On Thu, 27 Dec 2007 10:39:52 +1030
Tom Lanyon [EMAIL PROTECTED] wrote:

 The Chaintech AV-710 is Envy24PT based and has  
 digital toslink output. It's also available locally for $30-40.
 
 Tom
 

According to this list AV-710 is well supported and is a cheap
audiofiles' darling.

Beware that not all DACs on AV-710 are created equal; I think people
sw(itch|ap) front and rear DACs to be used to drive headphones - IIRC,
however strange this may be, rear DACs are of better quality.

I've written all the above off the top of my head, so better verify it.

Regards,
  Sergei.

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Chris Stranex
Take a look at the M-Audio range of PCI cards.

I think all of them have S/PDIF In and Out and they are supported by
ALSA. The Audiophile range are pretty cheap but good quality (I don't
have one but I've heard they are good)

Otherwise as Jeremy suggested, the E-MU range is also pretty well
supported by ALSA (apart from the USB cards if I remember correctly)
and will be similar to the M-Audio range.

-- 
Chris Stranex
rm-rf

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Jeremy Mordkoff
I needed spdif output over both optical and RCA and I settled on an
EMU0404 card that I got through guitarcenter.com

I have not gotten AC3 passthru to work yet though, just PCM

JLM



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:alsa-user-
 [EMAIL PROTECTED] On Behalf Of Tom Lanyon
 Sent: Monday, December 24, 2007 3:51 AM
 To: alsa-user@lists.sourceforge.net
 Subject: [Alsa-user] Best supported cards?
 
 Hi list,
 
 I've been having problems with the onboard SPDIF output using an
 AD1988B.
 
 Bearing in mind my only real requirement is an optical SPDIF output,
 can anyone suggest what the best-supported PCI / PCI-E cards are,
 under ALSA? I would really like something that 'just works'.
 
 A lot of people in the windows world have been raving about the C-
 Media Oxygen 8788 based cards (BlueGears b-enspirer, Asus Xonar D2,
 AuzenTech X-Meridian, HT Omega Claro, Razer Barracuda AC1, etc) but
 the sparse information I've found on ALSA's snd-oxygen doesn't give me
 much confidence.
 
 Much appreciated,
 Tom
 

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Tom Lanyon
On 27/12/2007, at 2:49 AM, Chris Stranex wrote:

 Take a look at the M-Audio range of PCI cards.

 I think all of them have S/PDIF In and Out and they are supported by
 ALSA. The Audiophile range are pretty cheap but good quality (I don't
 have one but I've heard they are good)

 Otherwise as Jeremy suggested, the E-MU range is also pretty well
 supported by ALSA (apart from the USB cards if I remember correctly)
 and will be similar to the M-Audio range.


The M-Audio range look good but only have a coax SPDIF, none of them  
have optical/toslink. I'm worried about interference on a coax cable  
back behind the receivers and would prefer an optical cable.

Any other ideas?

Thanks,
Tom

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Sergei Steshenko
On Thu, 27 Dec 2007 09:53:35 +1030
Tom Lanyon [EMAIL PROTECTED] wrote:

 On 27/12/2007, at 2:49 AM, Chris Stranex wrote:
 
  Take a look at the M-Audio range of PCI cards.
 
  I think all of them have S/PDIF In and Out and they are supported by
  ALSA. The Audiophile range are pretty cheap but good quality (I don't
  have one but I've heard they are good)
 
  Otherwise as Jeremy suggested, the E-MU range is also pretty well
  supported by ALSA (apart from the USB cards if I remember correctly)
  and will be similar to the M-Audio range.
 
 
 The M-Audio range look good but only have a coax SPDIF, none of them  
 have optical/toslink. I'm worried about interference on a coax cable  
 back behind the receivers and would prefer an optical cable.
 
 Any other ideas?
 
 Thanks,
 Tom
 


Maybe a standalone optical decoupler exists ?

--Sergei.

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Tom Lanyon
 The M-Audio range look good but only have a coax SPDIF, none of them
 have optical/toslink. I'm worried about interference on a coax cable
 back behind the receivers and would prefer an optical cable.

 Any other ideas?

 Thanks,
 Tom


 Maybe a standalone optical decoupler exists ?

 --Sergei.

Not sure; but I'd prefer to keep it on-card if possible.

The M-Audio cards are based on the Envy24HT chipset and are said to be  
well supported; can I assume that other cards using this chipset are  
well supported too? The Chaintech AV-710 is Envy24PT based and has  
digital toslink output. It's also available locally for $30-40.

Tom

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Re: [Alsa-user] Best supported cards?

2007-12-26 Thread Bill Unruh
On Thu, 27 Dec 2007, Tom Lanyon wrote:

 On 27/12/2007, at 2:49 AM, Chris Stranex wrote:

 Take a look at the M-Audio range of PCI cards.

 I think all of them have S/PDIF In and Out and they are supported by
 ALSA. The Audiophile range are pretty cheap but good quality (I don't
 have one but I've heard they are good)

 Otherwise as Jeremy suggested, the E-MU range is also pretty well
 supported by ALSA (apart from the USB cards if I remember correctly)
 and will be similar to the M-Audio range.


 The M-Audio range look good but only have a coax SPDIF, none of them
 have optical/toslink. I'm worried about interference on a coax cable
 back behind the receivers and would prefer an optical cable.

5 years ago the maudio transit (a usb card)  already had an optical link. Not 
sure how
well it works(I recall at least one complaint but do not know how it
resolved) , but it is there. The card itself is very good for the analog
output-- never tried the toslink, but then it is just a straight digital
translation so not sure what could go wrong. 
Not sure why you would worry about interference, since the noise would have
to be pretty high to start swamping the digital signal.

Note that inside a computer is probably the worst place to put an audio
card-- chock full of electronic interference. I think in principle a usb
card is a far better, but of course practice conquors principle aways.




 Any other ideas?

 Thanks,
 Tom

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[Alsa-user] Best supported cards?

2007-12-24 Thread Tom Lanyon
Hi list,

I've been having problems with the onboard SPDIF output using an  
AD1988B.

Bearing in mind my only real requirement is an optical SPDIF output,  
can anyone suggest what the best-supported PCI / PCI-E cards are,  
under ALSA? I would really like something that 'just works'.

A lot of people in the windows world have been raving about the C- 
Media Oxygen 8788 based cards (BlueGears b-enspirer, Asus Xonar D2,  
AuzenTech X-Meridian, HT Omega Claro, Razer Barracuda AC1, etc) but  
the sparse information I've found on ALSA's snd-oxygen doesn't give me  
much confidence.

Much appreciated,
Tom

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