RE: [Alsa-user] vxpocket / alsa 0.91/ recording freezes the system

RE: [Alsa-user] vxpocket / alsa 0.91/ recording freezes the system

[Marc Titinger]

Hi Matt,

> 
> My main aim was to test the latest vxpocket driver and see if 
> it works 
> with jackd/ ardour. 
> 

Thanks for your report, I cc it to alsa dev.

> These are my observations:
> 
> When booting up, the vx is not recognised. I have to restart 
> alsa, then 
> i can see the vx in alsamixer.

currently, I'm running vxloader from my bashrc file. This works. For some reason, vxloader will not work as post-install option, it's maybe a question of timing. 

> 
> arecord -D vxpocket -f cd test.wav 
> 
> throws an Input/Ouput error then freezes the whole system. 
> 

Yes, record hangs on vx boards. I will look into this if I have a chance (and if my boss agrees). Takashi Iwai may be faster then me on fixing it, though.


> I had better results with the old vx driver (jan 2003 cvs) - 
> it recorded 
> through analogue and digital inputs but the recording was distorted. 
> 

Is it distorted with both analog and digital sources ? If only digital recording is distorted, it maybe a clock source selection issue.


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Re: [Alsa-user] vxpocket / alsa 0.91/ recording freezes the system

[Takashi Iwai]

Hi,

At Mon, 17 Mar 2003 09:30:30 +0100,
Marc Titinger wrote:
> 
> 
> Hi Matt,
> 
> > 
> > My main aim was to test the latest vxpocket driver and see if 
> > it works 
> > with jackd/ ardour. 
> > 
> 
> Thanks for your report, I cc it to alsa dev.
> 
> > These are my observations:
> > 
> > When booting up, the vx is not recognised. I have to restart 
> > alsa, then 
> > i can see the vx in alsamixer.
> 
> currently, I'm running vxloader from my bashrc file. This works. For
> some reason, vxloader will not work as post-install option, it's
> maybe a question of timing.  
 
this is the problem of the timing of initialization.
i've not noticed this problem because i worked mainly on vx222 at the 
time to write the firmware loader.

a pcmcia PCCard module on linux is initialized indirectly by the card
manager after the module is loaded.  before that, the module is not
initialized properly, i.e. no i/o resources are assigned, so calling
vxloader via post-install fails.

i believe there must be a good solution for the automatic loading.
i'll check that later.


> > 
> > arecord -D vxpocket -f cd test.wav 
> > 
> > throws an Input/Ouput error then freezes the whole system. 
> > 
> 
> Yes, record hangs on vx boards. I will look into this if I have a
> chance (and if my boss agrees). Takashi Iwai may be faster then me
> on fixing it, though. 

i found it, too, and did a quick fix in the train returning from the
LAD meeting last evening :)  please try the cvs version.


ciao,

Takashi


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Re: vxpocket / alsa 0.91/ recording freezes the system

[Matthew Yee-King]

> 
> i found it, too, and did a quick fix in the train returning from the
> LAD meeting last evening :)  please try the cvs version.


ok i've now got the cvs driver running. 

more observations:

- recording doesn't crash the system now!

- recordings are disorted when they come from the analog or digital 
input. (consumer spdif source)

e.g.:

http://www.yeeking.net/audio/vxpocket2_analog_in.wav
http://www.yeeking.net/audio/vxpocket2_spdif_in.wav

- recording with arecord through the spdif in from a pro spdif source 
(on my akai mpc 2000) fails - i just get a 44 byte file.

- the spdif out works fine - plugged it into my akai mpc 2000 - no 
problems. 

cheers

matthew


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Re: [Alsa-user] vxpocket / alsa 0.91/ recording freezes the system

[Takashi Iwai]

At Mon, 17 Mar 2003 22:23:07 +0000,
Matthew Yee-King wrote:
> 
> 
> 
> > 
> > i found it, too, and did a quick fix in the train returning from the
> > LAD meeting last evening :)  please try the cvs version.
> 
> 
> ok i've now got the cvs driver running. 
> 
> more observations:
> 
> - recording doesn't crash the system now!
> 
> - recordings are disorted when they come from the analog or digital 
> input. (consumer spdif source)

please update the cvs version again.
i hope this problem is now fixed.


Takashi


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