quattro multi plugin.

quattro multi plugin.

[Patrick Shirkey]

I have had some luck with getting 4 channels to register using the multi 
plugin.

I have the following in .asoundrc.

----
pcm.quattro {
         type multi;

         slaves.a.pcm "hw:2,0";
         slaves.a.channels 3;


         bindings.0.slave a;
         bindings.0.channel 0;
         bindings.1.slave a;
         bindings.1.channel 1;
         bindings.2.slave a;
         bindings.2.channel 2;
	
}

ctl.quattro {
         type hw;
         card 0;
}

pcm.q4 {
         type route;
         slave.pcm "quattro";
         ttable.1.1 1;
         ttable.2.2 1;

}
----

When I run jackd I get this output though:

----
  jackd -v -d alsa -d q4
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

611 waiting for signals
creating alsa driver ... q4|1024|2|48000|swmon
new client: alsa_pcm, id = 1 type 1 @ 0x8067930 fd = 14
port alsa_pcm:in_1 buf shm key 0x164398c5 at offset 4096 bi = 0x8066d00
registered port alsa_pcm:in_1, offset = 4096
port alsa_pcm:in_2 buf shm key 0x164398c5 at offset 8192 bi = 0x8066d10
registered port alsa_pcm:in_2, offset = 8192
port alsa_pcm:in_3 buf shm key 0x164398c5 at offset 12288 bi = 0x8066d20
registered port alsa_pcm:in_3, offset = 12288
port alsa_pcm:in_4 buf shm key 0x164398c5 at offset 16384 bi = 0x8066d30
registered port alsa_pcm:in_4, offset = 16384
registered port alsa_pcm:out_1, offset = 0
registered port alsa_pcm:out_2, offset = 0
registered port alsa_pcm:out_3, offset = 0
registered port alsa_pcm:out_4, offset = 0
-- jack_rechain_graph():
client alsa_pcm: inprocess client, execution_order=0.
ALSA: poll time out polled for 45558.694314
driver wait function failed, exiting
telling signal thread that the engine is done
jack main caught signal 1
----

-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Ah that should be....

----
pcm.quattro {
         type multi;

         slaves.a.pcm "hw:2,0";
         slaves.a.channels 3;


         bindings.0.slave a;
         bindings.0.channel 0;
         bindings.1.slave a;
         bindings.1.channel 1;
         bindings.2.slave a;
         bindings.2.channel 2;
	
}

ctl.quattro {
         type hw;
         card 0;
}

pcm.q4 {
         type route;
         slave.pcm "quattro";
         ttable.1.1 1;
         ttable.2.2 1;

}

ctl.q4 {
         type hw;
         card 2;
}
----

When I run jackd I get this output though:

----
  jackd -v -d alsa -d q4
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

611 waiting for signals
creating alsa driver ... q4|1024|2|48000|swmon
new client: alsa_pcm, id = 1 type 1 @ 0x8067930 fd = 14
port alsa_pcm:in_1 buf shm key 0x164398c5 at offset 4096 bi = 0x8066d00
registered port alsa_pcm:in_1, offset = 4096
port alsa_pcm:in_2 buf shm key 0x164398c5 at offset 8192 bi = 0x8066d10
registered port alsa_pcm:in_2, offset = 8192
port alsa_pcm:in_3 buf shm key 0x164398c5 at offset 12288 bi = 0x8066d20
registered port alsa_pcm:in_3, offset = 12288
port alsa_pcm:in_4 buf shm key 0x164398c5 at offset 16384 bi = 0x8066d30
registered port alsa_pcm:in_4, offset = 16384
registered port alsa_pcm:out_1, offset = 0
registered port alsa_pcm:out_2, offset = 0
registered port alsa_pcm:out_3, offset = 0
registered port alsa_pcm:out_4, offset = 0
-- jack_rechain_graph():
client alsa_pcm: inprocess client, execution_order=0.
ALSA: poll time out polled for 45558.694314
driver wait function failed, exiting
telling signal thread that the engine is done
jack main caught signal 1
----
-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

This is wierd. Using the exact same commands I cannot get jackd to load 
now. The card still, ahem, works, cough, with a single pcm device.

----
jackd  -v -d alsa -d q4
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

1068 waiting for signals
creating alsa driver ... q4|1024|2|48000|swmon
ALSA: no playback configurations available
ALSA: cannot configure capture channel
cannot load driver module alsa
jack main caught signal 15
----

This is after a reboot due to jackd hanging the machine after 
accidentally loading the hw plugin after having semi success with the 
code below.

Patrick Shirkey wrote:
> Ah that should be....
> 
> ----
> pcm.quattro {
>         type multi;
> 
>         slaves.a.pcm "hw:2,0";
>         slaves.a.channels 3;
> 
> 
>         bindings.0.slave a;
>         bindings.0.channel 0;
>         bindings.1.slave a;
>         bindings.1.channel 1;
>         bindings.2.slave a;
>         bindings.2.channel 2;
>     
> }
> 
> ctl.quattro {
>         type hw;
>         card 0;
> }
> 
> pcm.q4 {
>         type route;
>         slave.pcm "quattro";
>         ttable.1.1 1;
>         ttable.2.2 1;
> 
> }
> 
> ctl.q4 {
>         type hw;
>         card 2;
> }
> ----
> 
> When I run jackd I get this output though:
> 
> ----
>  jackd -v -d alsa -d q4
> jackd 0.37.1
> Copyright 2001-2002 Paul Davis and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> 
> 611 waiting for signals
> creating alsa driver ... q4|1024|2|48000|swmon
> new client: alsa_pcm, id = 1 type 1 @ 0x8067930 fd = 14
> port alsa_pcm:in_1 buf shm key 0x164398c5 at offset 4096 bi = 0x8066d00
> registered port alsa_pcm:in_1, offset = 4096
> port alsa_pcm:in_2 buf shm key 0x164398c5 at offset 8192 bi = 0x8066d10
> registered port alsa_pcm:in_2, offset = 8192
> port alsa_pcm:in_3 buf shm key 0x164398c5 at offset 12288 bi = 0x8066d20
> registered port alsa_pcm:in_3, offset = 12288
> port alsa_pcm:in_4 buf shm key 0x164398c5 at offset 16384 bi = 0x8066d30
> registered port alsa_pcm:in_4, offset = 16384
> registered port alsa_pcm:out_1, offset = 0
> registered port alsa_pcm:out_2, offset = 0
> registered port alsa_pcm:out_3, offset = 0
> registered port alsa_pcm:out_4, offset = 0
> -- jack_rechain_graph():
> client alsa_pcm: inprocess client, execution_order=0.
> ALSA: poll time out polled for 45558.694314
> driver wait function failed, exiting
> telling signal thread that the engine is done
> jack main caught signal 1
> ----



-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Takashi Iwai]

[-- Attachment #1: Type: text/plain, Size: 411 bytes --]

At Fri, 19 Jul 2002 22:56:15 +0900,
Patrick Shirkey wrote:
> 
> This is wierd. Using the exact same commands I cannot get jackd to load 
> now. The card still, ahem, works, cough, with a single pcm device.

how about the asoundrc attached below?
this will map hw:2,1 and hw:2,2 as 4 channels pcm.
i thought that these two devices correspond to 96kHz, so you need to
specify other frequency for jackd.


Takashi

[-- Attachment #2: quatro-asoundrc --]
[-- Type: application/octet-stream, Size: 788 bytes --]

#
# compose 4 channels from two channel x two devices, hw:2,1 and hw:2,2
# assuming that hw:2,1 and hw:2,2 give the same condition, 24_3LE/96k
#

pcm.quattro {
        type multi;

        slaves.a.pcm "hw:2,1";
        slaves.a.channels 2;
	slaves.b.pcm "hw:2,2";
	slaves.b.channels 2;

	bindings.0.slave a;
	bindings.0.channel 0;
	bindings.1.slave a;
	bindings.1.channel 1;
	bindings.2.slave b;
	bindings.2.channel 0;
	bindings.3.slave b;
	bindings.3.channel 1;
}

#
# remap 4 channels as interleaved.
# use plug instead of route here, since 24_3LE is unlikely supported by
# applications.
#
pcm.q4 {
	type plug;
	slave.pcm "quattro";
	ttable.0.0 1;
	ttable.1.1 1;
	ttable.2.2 1;
	ttable.3.3 1;
}

#
# define the control
#
ctl.quattro {
	type hw;
	card 2;
}

# alias
ctl.q4 ctl.quattro

Re: quattro multi plugin.

[Thorsten Haas]

uhm, do I get you right; it is now possible to record from usb-quattro using 
FOUR channels simultanously?

Am Freitag, 19. Juli 2002 19:51 schrieb Takashi Iwai:
> At Fri, 19 Jul 2002 22:56:15 +0900,
>
> Patrick Shirkey wrote:
> > This is wierd. Using the exact same commands I cannot get jackd to load
> > now. The card still, ahem, works, cough, with a single pcm device.
>
> how about the asoundrc attached below?
> this will map hw:2,1 and hw:2,2 as 4 channels pcm.
> i thought that these two devices correspond to 96kHz, so you need to
> specify other frequency for jackd.
>
>
> Takashi

-- 
mailto:mail@thorstenhaas.de
http://www.thorstenhaas.de 


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Nope. I have tried something very similar to this before with no luck. 
It is extremely annoying that I now cannot reproduce the previous 
message. I don't understand why it can almost work once but seemingly 
never again ??? It's very strange.



Takashi Iwai wrote:
> At Fri, 19 Jul 2002 22:56:15 +0900,
> Patrick Shirkey wrote:
> 
>>This is wierd. Using the exact same commands I cannot get jackd to load 
>>now. The card still, ahem, works, cough, with a single pcm device.
> 
> 
> how about the asoundrc attached below?
> this will map hw:2,1 and hw:2,2 as 4 channels pcm.
> i thought that these two devices correspond to 96kHz, so you need to
> specify other frequency for jackd.
> 
> 
> Takashi

----
# jackd -R -v -a -d alsa -d q4
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

507 waiting for signals
creating alsa driver ... q4|1024|2|48000|swmon
You appear to be using the ALSA software "plug" layer, probably
a result of using the "default" ALSA device. This is less
efficient than it could be. Consider using a ~/.asoundrc file
to define a hardware audio device rather than using the plug layer

You appear to be using the ALSA software "plug" layer, probably
a result of using the "default" ALSA device. This is less
efficient than it could be. Consider using a ~/.asoundrc file
to define a hardware audio device rather than using the plug layer

new client: alsa_pcm, id = 1 type 1 @ 0x8067490 fd = 14
port alsa_pcm:in_1 buf shm key 0x28441bd5 at offset 4096 bi = 0x8066860
registered port alsa_pcm:in_1, offset = 4096
port alsa_pcm:in_2 buf shm key 0x28441bd5 at offset 8192 bi = 0x8066870
registered port alsa_pcm:in_2, offset = 8192
registered port alsa_pcm:out_1, offset = 0
registered port alsa_pcm:out_2, offset = 0
-- jack_rechain_graph():
client alsa_pcm: inprocess client, execution_order=0.
jackd: pcm.c:1925: snd_pcm_area_silence: Assertion `0' failed.

# jackd watchdog: timeout - killing jackd

# jackd -R -v -a -d alsa -d quattro
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

creating alsa driver ... quattro|1024|2|48000|swmon
ALSA: mmap-based access is not possible for the capture stream of this 
audio int
erface514 waiting for signals

ALSA: cannot configure capture channel
cannot load driver module alsa
jack main caught signal 15

----

-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Patrick Shirkey wrote:
> Nope. I have tried something very similar to this before with no luck. 
> It is extremely annoying that I now cannot reproduce the previous 
> message. I don't understand why it can almost work once but seemingly 
> never again ??? It's very strange.
> 

I guess I spoke too soon. After a hard reeboot and starting the box 
after I had Linux up. I could get similar output to the original message 
except htis time I got an instant hang once kackd had found the i/o ports.

I will of course test some more :)

> 
> 
> Takashi Iwai wrote:
> 
>> At Fri, 19 Jul 2002 22:56:15 +0900,
>> Patrick Shirkey wrote:
>>
>>> This is wierd. Using the exact same commands I cannot get jackd to 
>>> load now. The card still, ahem, works, cough, with a single pcm device.
>>
>>
>>
>> how about the asoundrc attached below?
>> this will map hw:2,1 and hw:2,2 as 4 channels pcm.
>> i thought that these two devices correspond to 96kHz, so you need to
>> specify other frequency for jackd.
>>
>>
>> Takashi
> 
> 
> ----
> # jackd -R -v -a -d alsa -d q4
> jackd 0.37.1
> Copyright 2001-2002 Paul Davis and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> 
> 507 waiting for signals
> creating alsa driver ... q4|1024|2|48000|swmon
> You appear to be using the ALSA software "plug" layer, probably
> a result of using the "default" ALSA device. This is less
> efficient than it could be. Consider using a ~/.asoundrc file
> to define a hardware audio device rather than using the plug layer
> 
> You appear to be using the ALSA software "plug" layer, probably
> a result of using the "default" ALSA device. This is less
> efficient than it could be. Consider using a ~/.asoundrc file
> to define a hardware audio device rather than using the plug layer
> 
> new client: alsa_pcm, id = 1 type 1 @ 0x8067490 fd = 14
> port alsa_pcm:in_1 buf shm key 0x28441bd5 at offset 4096 bi = 0x8066860
> registered port alsa_pcm:in_1, offset = 4096
> port alsa_pcm:in_2 buf shm key 0x28441bd5 at offset 8192 bi = 0x8066870
> registered port alsa_pcm:in_2, offset = 8192
> registered port alsa_pcm:out_1, offset = 0
> registered port alsa_pcm:out_2, offset = 0
> -- jack_rechain_graph():
> client alsa_pcm: inprocess client, execution_order=0.
> jackd: pcm.c:1925: snd_pcm_area_silence: Assertion `0' failed.
> 
> # jackd watchdog: timeout - killing jackd
> 
> # jackd -R -v -a -d alsa -d quattro
> jackd 0.37.1
> Copyright 2001-2002 Paul Davis and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> 
> creating alsa driver ... quattro|1024|2|48000|swmon
> ALSA: mmap-based access is not possible for the capture stream of this 
> audio int
> erface514 waiting for signals
> 
> ALSA: cannot configure capture channel
> cannot load driver module alsa
> jack main caught signal 15
> 
> ----
> 



-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Sorry.

Not quite clear enough. The below happened using this in .asoundrc, not 
the code you sent Takashi.

----
pcm.quattro5 {
         type multi;

         slaves.a.pcm "hw:2,0";
         slaves.a.channels 3;


         bindings.0.slave a;
         bindings.0.channel 0;
         bindings.1.slave a;
         bindings.1.channel 1;
         bindings.2.slave a;
         bindings.2.channel 2;
	
}

ctl.quattro5 {
         type hw;
         card 0;
}

pcm.q4b {
         type route;
         slave.pcm "quattro";
         ttable.1.1 1;
         ttable.2.2 1;

}

ctl.q4b {
         type hw;
         card 0;
}
----


Patrick Shirkey wrote:
> Patrick Shirkey wrote:
> 
>> Nope. I have tried something very similar to this before with no luck. 
>> It is extremely annoying that I now cannot reproduce the previous 
>> message. I don't understand why it can almost work once but seemingly 
>> never again ??? It's very strange.
>>
> 
> I guess I spoke too soon. After a hard reeboot and starting the box 
> after I had Linux up. I could get similar output to the original message 
> except htis time I got an instant hang once kackd had found the i/o ports.
> 
> I will of course test some more :)
> 
>>
>>
>> Takashi Iwai wrote:
>>
>>> At Fri, 19 Jul 2002 22:56:15 +0900,
>>> Patrick Shirkey wrote:
>>>
>>>> This is wierd. Using the exact same commands I cannot get jackd to 
>>>> load now. The card still, ahem, works, cough, with a single pcm device.
>>>
>>>
>>>
>>>
>>> how about the asoundrc attached below?
>>> this will map hw:2,1 and hw:2,2 as 4 channels pcm.
>>> i thought that these two devices correspond to 96kHz, so you need to
>>> specify other frequency for jackd.
>>>
>>>
>>> Takashi
>>
>>
>>
>> ----
>> # jackd -R -v -a -d alsa -d q4
>> jackd 0.37.1
>> Copyright 2001-2002 Paul Davis and others.
>> jackd comes with ABSOLUTELY NO WARRANTY
>> This is free software, and you are welcome to redistribute it
>> under certain conditions; see the file COPYING for details
>>
>> 507 waiting for signals
>> creating alsa driver ... q4|1024|2|48000|swmon
>> You appear to be using the ALSA software "plug" layer, probably
>> a result of using the "default" ALSA device. This is less
>> efficient than it could be. Consider using a ~/.asoundrc file
>> to define a hardware audio device rather than using the plug layer
>>
>> You appear to be using the ALSA software "plug" layer, probably
>> a result of using the "default" ALSA device. This is less
>> efficient than it could be. Consider using a ~/.asoundrc file
>> to define a hardware audio device rather than using the plug layer
>>
>> new client: alsa_pcm, id = 1 type 1 @ 0x8067490 fd = 14
>> port alsa_pcm:in_1 buf shm key 0x28441bd5 at offset 4096 bi = 0x8066860
>> registered port alsa_pcm:in_1, offset = 4096
>> port alsa_pcm:in_2 buf shm key 0x28441bd5 at offset 8192 bi = 0x8066870
>> registered port alsa_pcm:in_2, offset = 8192
>> registered port alsa_pcm:out_1, offset = 0
>> registered port alsa_pcm:out_2, offset = 0
>> -- jack_rechain_graph():
>> client alsa_pcm: inprocess client, execution_order=0.
>> jackd: pcm.c:1925: snd_pcm_area_silence: Assertion `0' failed.
>>
>> # jackd watchdog: timeout - killing jackd
>>
>> # jackd -R -v -a -d alsa -d quattro
>> jackd 0.37.1
>> Copyright 2001-2002 Paul Davis and others.
>> jackd comes with ABSOLUTELY NO WARRANTY
>> This is free software, and you are welcome to redistribute it
>> under certain conditions; see the file COPYING for details
>>
>> creating alsa driver ... quattro|1024|2|48000|swmon
>> ALSA: mmap-based access is not possible for the capture stream of this 
>> audio int
>> erface514 waiting for signals
>>
>> ALSA: cannot configure capture channel
>> cannot load driver module alsa
>> jack main caught signal 15
>>
>> ----
>>
> 
> 
> 



-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Jaroslav Kysela]

On Sun, 21 Jul 2002, Patrick Shirkey wrote:

> Nope. I have tried something very similar to this before with no luck. 
> It is extremely annoying that I now cannot reproduce the previous 
> message. I don't understand why it can almost work once but seemingly 
> never again ??? It's very strange.
> 
> 
> 
> Takashi Iwai wrote:
> > At Fri, 19 Jul 2002 22:56:15 +0900,
> > Patrick Shirkey wrote:
> > 
> >>This is wierd. Using the exact same commands I cannot get jackd to load 
> >>now. The card still, ahem, works, cough, with a single pcm device.
> > 
> > 
> > how about the asoundrc attached below?
> > this will map hw:2,1 and hw:2,2 as 4 channels pcm.
> > i thought that these two devices correspond to 96kHz, so you need to
> > specify other frequency for jackd.
> > 
> > 
> > Takashi
> 
> ----
> # jackd -R -v -a -d alsa -d q4
> jackd 0.37.1
> Copyright 2001-2002 Paul Davis and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> 
> 507 waiting for signals
> creating alsa driver ... q4|1024|2|48000|swmon
> You appear to be using the ALSA software "plug" layer, probably
> a result of using the "default" ALSA device. This is less
> efficient than it could be. Consider using a ~/.asoundrc file
> to define a hardware audio device rather than using the plug layer
> 
> You appear to be using the ALSA software "plug" layer, probably
> a result of using the "default" ALSA device. This is less
> efficient than it could be. Consider using a ~/.asoundrc file
> to define a hardware audio device rather than using the plug layer
> 
> new client: alsa_pcm, id = 1 type 1 @ 0x8067490 fd = 14
> port alsa_pcm:in_1 buf shm key 0x28441bd5 at offset 4096 bi = 0x8066860
> registered port alsa_pcm:in_1, offset = 4096
> port alsa_pcm:in_2 buf shm key 0x28441bd5 at offset 8192 bi = 0x8066870
> registered port alsa_pcm:in_2, offset = 8192
> registered port alsa_pcm:out_1, offset = 0
> registered port alsa_pcm:out_2, offset = 0
> -- jack_rechain_graph():
> client alsa_pcm: inprocess client, execution_order=0.
> jackd: pcm.c:1925: snd_pcm_area_silence: Assertion `0' failed.

Please, try again. I've just added missing support for 24-bit samples to
one alsa-lib's function.

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project  http://www.alsa-project.org
SuSE Linux    http://www.suse.com



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Jaroslav Kysela wrote:
> 
> Please, try again. I've just added missing support for 24-bit samples to
> one alsa-lib's function.
> 

Things seem to be getting worse with jack at least. I cannot use the 
96000hz setting because that requires jack to have 24 bit support which 
it doesn't yet. 32 or 16bit are supported.

So If I use the .asoundrc that takashi sent I get an instant hang with 
only two channels being found and if I use my one I get the same but 
with four channels being found.

By instant hang I mean:

----
  jackd -v -d alsa -d q4b
jackd 0.37.1
Copyright 2001-2002 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

611 waiting for signals
creating alsa driver ... q4b|1024|2|48000|swmon
new client: alsa_pcm, id = 1 type 1 @ 0x8067930 fd = 14
port alsa_pcm:in_1 buf shm key 0x164398c5 at offset 4096 bi = 0x8066d00
registered port alsa_pcm:in_1, offset = 4096
port alsa_pcm:in_2 buf shm key 0x164398c5 at offset 8192 bi = 0x8066d10
registered port alsa_pcm:in_2, offset = 8192
port alsa_pcm:in_3 buf shm key 0x164398c5 at offset 12288 bi = 0x8066d20
registered port alsa_pcm:in_3, offset = 12288
port alsa_pcm:in_4 buf shm key 0x164398c5 at offset 16384 bi = 0x8066d30
registered port alsa_pcm:in_4, offset = 16384
registered port alsa_pcm:out_1, offset = 0
registered port alsa_pcm:out_2, offset = 0
registered port alsa_pcm:out_3, offset = 0
registered port alsa_pcm:out_4, offset = 0
-- jack_rechain_graph():
client alsa_pcm: inprocess client, execution_order=0.
----

Then my system locks hard.

I will do some testing with ecasound and the native alsa drivers.


-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Takashi Iwai]

At Mon, 22 Jul 2002 18:58:56 +0900,
Patrick Shirkey wrote:
> 
> Jaroslav Kysela wrote:
> > 
> > Please, try again. I've just added missing support for 24-bit samples to
> > one alsa-lib's function.
> > 
> 
> Things seem to be getting worse with jack at least. I cannot use the 
> 96000hz setting because that requires jack to have 24 bit support which 
> it doesn't yet. 32 or 16bit are supported.
 
you can use 32bit if it's accessed via plug layer.
alsa-lib converts from 32 to 24bit.
(you need anyway route layer, so the latency stays as before.)

> So If I use the .asoundrc that takashi sent I get an instant hang with 
> only two channels being found and if I use my one I get the same but 
> with four channels being found.
> 
> By instant hang I mean:
> 
> ----
>   jackd -v -d alsa -d q4b
> jackd 0.37.1
> Copyright 2001-2002 Paul Davis and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> 
> 611 waiting for signals
> creating alsa driver ... q4b|1024|2|48000|swmon
> new client: alsa_pcm, id = 1 type 1 @ 0x8067930 fd = 14
> port alsa_pcm:in_1 buf shm key 0x164398c5 at offset 4096 bi = 0x8066d00
> registered port alsa_pcm:in_1, offset = 4096
> port alsa_pcm:in_2 buf shm key 0x164398c5 at offset 8192 bi = 0x8066d10
> registered port alsa_pcm:in_2, offset = 8192
> port alsa_pcm:in_3 buf shm key 0x164398c5 at offset 12288 bi = 0x8066d20
> registered port alsa_pcm:in_3, offset = 12288
> port alsa_pcm:in_4 buf shm key 0x164398c5 at offset 16384 bi = 0x8066d30
> registered port alsa_pcm:in_4, offset = 16384
> registered port alsa_pcm:out_1, offset = 0
> registered port alsa_pcm:out_2, offset = 0
> registered port alsa_pcm:out_3, offset = 0
> registered port alsa_pcm:out_4, offset = 0
> -- jack_rechain_graph():
> client alsa_pcm: inprocess client, execution_order=0.
> ----
> 
> Then my system locks hard.

hmm...  could you simply try playback of 4 channels?
you can find a sample wav in
	http://www.tsp.ece.mcgill.ca/Docs/AudioFormats/WAVE/WAVE.html

or, try 4 channel recording via aplay.


Takashi


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

Re: quattro multi plugin.

[Patrick Shirkey]

Patrick Shirkey wrote:

> I will do some testing with ecasound and the native alsa drivers.
> 

Using both arecord and ecasound I can get two channels with Takashi's 
.asoundrc and 4 channels with my .asoundrc.

Both of them record two different mono streams. With my one the streams 
appear as 2 and 3 out of 4 in audacity. Stream 1 and 4 have a null 
signal. ie applying an amplification effect to the signal does nothing.

Wtih Takashis' the streams appear as 1 and 2 out of 2.

So we can still only record stereo streams and I have a funny feeling 
that the reason jack is locking is because stream 1 and 4 have no real 
signal.

If you want the soundfiles I will put them up.





-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf

quattro multi plugin - 4 channel recording

[Patrick Shirkey]

I have now got 4 channel recording using arecord.

It seemed the alias for the ctl was throwing the equation.

Use the following in your .asoundrc file.


#---- 


#
# compose 4 channels from two channel x two devices, hw:2,1 and hw:2,2
# assuming that hw:2,1 and hw:2,2 give the same condition, 24_3LE/96k
#

pcm.quattro {
         type multi;

         slaves.a.pcm "hw:2,1";
         slaves.a.channels 2;
         slaves.b.pcm "hw:2,2";
         slaves.b.channels 2;

         bindings.0.slave a;
         bindings.0.channel 0;
         bindings.1.slave a;
         bindings.1.channel 1;
         bindings.2.slave b;
         bindings.2.channel 0;
         bindings.3.slave b;
         bindings.3.channel 1;
}

ctl.quattro {
         type hw;
         card 2;
}


#
# remap 4 channels as interleaved.
# use plug instead of route here, since 24_3LE is unlikely supported by
# applications.
#
# arecord -r 44100 -c 4 -f s16_le -D q4 -d 5 /home/xxx/q4.wav

pcm.q4 {
         type plug;
         slave.pcm "quattro";
         ttable.0.0 1;
         ttable.1.1 1;
         ttable.2.2 1;
         ttable.3.3 1;
}



ctl.q4 {
         type hw;
         card 2;
}

#
# Use route plugin for applications that do support 24_3LE
# This lowers latency which the plug plugin introduces due to
# resampling.
#
# arecord -r 44100 -c 4 -f s16_le -D q41 -d 5 /home/xxx/q41.wav



pcm.q41 {
         type route;
         slave.pcm "quattro";
         ttable.0.0 1;
         ttable.1.1 1;
         ttable.2.2 1;
         ttable.3.3 1;

}

ctl.q41 {
         type hw;
         card 2;
}

#----





-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf