On Mon, 3 Nov 2003, Adam King wrote:
[...]
>
> I understand that the Soundblaster Live is a consumer card... playing
> with audio apps is still just a bit of a hobby so I can't justify
> spending the cash on a pro sound card. I just want to know whether it is
> technically possible to do what I want, I'd like to be able to use the
> headphone monitoring features in apps like jackEQ and Sweep.
>
> I've tried looking around ALSA's site, wiki, etc. but can't really find
> a straight answer.
>
> Cheers,
> Adam
>
>
>
I own one and I would say that doing multichannel recording or monitoring
is not possible. Perhabs using two soundcards would work, but don't expect
them to run in sync.
Burkhard
Hi.
I'm confused about whether or not I have a low-latency kernel, and if not why
not. I installed the multimedia kernel and booted into it but:
[root@olaf joe]# cat /proc/version
Linux version 2.4.22-21mm.1mdk (dtholen(a)klama.mandrake.org) (gcc version 3.3.1
(Mandrake Linux 9.2 3.3.1-4mdk)) #1 Tue Oct 28 15:05:18 CET 2003
[root@olaf joe]# cat /proc/sys/kernel/lowlatency
cat: /proc/sys/kernel/lowlatency: No such file or directory
Does this definitely mean I don't have low-latency? Any ideas why not? Can't
identify anything relevant in /var/log/messages.
Does /proc/sys/kernel/lowlatency relate to the pre-emption patches or Andrew
Morton's low-latency patches or both or what?
Thanks for any help.
http://gnomoradio.org/announcement.php
A media player and p2p app with built in support for Creative Commons
licences. Currently looks like cvs version only.
Cheers
Daniel
>
>Yes, I'm using qjackctl, but all I have is capture_1, capture_2,
>playback_1, playback_2. I've got it set to hw:0, but these are the only
>ports I get.
>
>- Adam
That's probably because these are the only ports the sound card directly supports. (I can't be sure, I don't own one) The multichannel support is probably only available when you send an encoded digital stream to the card (something like AC3 for example) and the card then decodes it with an onboard chip for multichannel sound.
Cards like these are generally not true multichannel cards in the sense that you would use for professional audio applications. They are consumer grade cards that feature onboard multichannel decoding so that Joe wintel user can have his surround sound while watching DVDs on his computer.
You could try looking around in the documentation available on ALSA's sound card matrix, online documentation or wiki.
regards
-Reuben
In a message dated 11/2/2003 4:27:05 PM Eastern Standard Time, linux-audio-user-request(a)music.columbia.edu writes:
>
> >So,
> >
> >I have this HDSP/Multiface and all the Alsa drivers I could want, but when I use mplayer for anything I may as well be watching a rice krispies commercial. The video is fine when the sound is off, but if the sound is on, the video and audio both jump and snap and crackle.
> I turn it off before it gets to pop... is there anything special I can do? Do I need to recompile mplayer with or without some special flag, or is there some option I can simply
> run when I bring up the program?
> >
> >Thanks,
> >
> >Matt
> >
> >
> do you have oss emulation enabled?
Yeah, it looks to be, but just to make sure, what all should I see to make sure? (BTW I got it working decently using the sdl option... I don't know how preferable that is.)
Thanks,
Matt
Hello all !
What could I do about the following problem ?
I have an M-audio delta66 + omni I/O (preamp/breakout box). This card
has an onboard digital mixer that allows hardware monitoring of inputs.
- when setting this mixer to directly route a HW input to a PCM output,
the sound is perfectly fine. The signal goes through both an A/D and a
D/A conversion before reaching my ears. I suppose that if I had a ground
loop problem (or other analog noise source), I would hear it with such a
setup.
- now, when using jackd to route (with no jack client in between) the
alsa capture port associated with the HW input to a playback port, the
sound is full of horrible "blips".
I use :
- IRQ #10 for the delta66 (I even disabled the USB controller of the
motherboard which used IRQ#11, with no better results).
- a patched for LL 2.4.19 kernel, ext2 filesystems and hdparm'ed HDs.
- alsa 0.9.6
- a tmpfs work directory for jackd that I start with '-R' as root.
How could I isolate the source of this very annoying problem ?
Is there a way to route an input to an output through ALSA only without
using jackd (and the hw mixer too of course) ? Maybe that would help
tracking down the culprit ...
I'd appreciate any hint on this. Thanks a lot !
--
David
In a message dated 11/2/2003 7:21:07 AM Eastern Standard Time, linux-audio-user-request(a)music.columbia.edu writes:
> I want to be able to have
> multiple in/out ports. Example, I want to be able to use jackEQ and send
> the master output to speakers, and the monitor output out
> to headphones.
You also might try the gui "qjackctl" or its little sister "qjackconnect" if you don't want too much gui. If you run qjackctl, be sure to set it to "hw:0" rather than the default if you want all your ins and outs to show up.
M
>
>The data I'm copying is currently
>a very large library I've built through purchases and downloads which I use
>in Windows and is becoming useful under Linux. The Windows box happens to be
>dual boot, so it was easier for me to use scp, with help from the group
>here, than deal with Samba between Win ME and Linux.
a shot in the dark here, but i have a similar problem regarding huge
sample libraries on my Mac. despite having hfsplus 1.0.4 installed on
the redhat machine and OS X's samba active, i can access the volume
from redhat, but can't access any files...
anybody overcome these obstacles?
--
_________________________________________________________________
Jonathan Segel -- MAGNETIC -- PO Box 460816 S.F. CA. 94146-0816
4014 Brookdale Ave. Oakland, CA 94619
jsegel(a)magneticmotorworks.com <-----> magsatellite(a)yahoo.com
http://www.MagneticMotorworks.com
tel (510) 534 7825 cell (510) 484 7415 fax (425) 955 4495
So,
I have this HDSP/Multiface and all the Alsa drivers I could want, but when I use mplayer for anything I may as well be watching a rice krispies commercial. The video is fine when the sound is off, but if the sound is on, the video and audio both jump and snap and crackle. I turn it off before it gets to pop... is there anything special I can do? Do I need to recompile mplayer with or without some special flag, or is there some option I can simply run when I bring up the program?
Thanks,
Matt