16 Mar
2019
16 Mar
'19
7:38 p.m.
On March 16, 2019 6:26:58 PM GMT+01:00, Moshe Werner <moshwe(a)gmail.com> wrote:
Hey,
Afaik, usb2 CC works up to 48kHz...
I may be wrong though.
Cheers
Moshe
At least that is how it seems to be in this case with this device. (but I think i had 96k
running even on usb1 devices before)
Than the question would be what has to be done to make 96k available on Linux. (they have
a asio driver for Windows and it seems to work out of the box on osx)
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
16 Mar
16 Mar
8:15 p.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org wrote:
On March 16, 2019 6:26:58 PM GMT+01:00, Moshe Werner
<moshwe(a)gmail.com>
wrote:
>Afaik, usb2 CC works up to 48kHz...
Audio Class 1 is defined for up to 48kHz.
Audio Class 2 is can use higher sample rates.
It seems that the Sound Devices Pre2 defaults to class 1 mode, but based
on the documentation it seems to have a class 2 mode available.
At this point you would need to contact Sound Devices to confirm it is
actually class 2 compliant, or if it uses a proprietary driver. If it is
class 2 compliant, you need to know how to make the device switch to class
2 mode.
--
Chris Caudle
11 p.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On 16/03/2019 19:14, Chris Caudle wrote:
On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org
wrote:
It is the other way around: The USBPre2 defaults to usb2 mode, and is
class compliant there. In class compliant mode, it is limited to 24/48.
I recall that to get into usb1 mode, I needed to push one of the buttons
on the device during connection to the PC. I don't know whether this is
still the case in newer firmware releases.
/ Hans
On March 16, 2019 6:26:58 PM GMT+01:00, Moshe
Werner <moshwe(a)gmail.com>
wrote:
> Afaik, usb2 CC works up to 48kHz...
Audio Class 1 is defined for up to 48kHz.
Audio Class 2 is can use higher sample rates.
It seems that the Sound Devices Pre2 defaults to class 1 mode, but based
on the documentation it seems to have a class 2 mode available.
At this point you would need to contact Sound Devices to confirm it is
actually class 2 compliant, or if it uses a proprietary driver. If it is
class 2 compliant, you need to know how to make the device switch to class
2 mode.
21 Mar
21 Mar
12:05 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
Hello.
With an firmware not updated since «Last update May 9, 2011»
I think it's safe to say that this card will never work at higher
sample rate - running linux.
It's not «legacy» on the Sound Devices web site, i wonder why.
The list keep an old talk on this card and this problem :
https://lists.linuxaudio.org/archives/linux-audio-user/2014-September/09920…
Older :
https://lists.linuxaudio.org/archives/linux-audio-user/2013-January/089199.…
And i can quote a support email from Sound Devices where i asked about
this issues - wich is not an issue for them for sure.
De : John Doe <JohnDoe(a)sounddevices.com>
À : "me(a)yahoo.fr" <me(a)yahoo.fr>
Envoyé : mercredi 10 décembre 2014 à 16:58:13 UTC+1
Objet : Sound Devices Product Inquiry (33173)
Hello You,
Thank you for contacting Sound Devices. I don't know when or if they
will make this request available but I will gladly pass this request to
engineering for future firmware consideration. Thanks.
Best Regards,
John Doe
--
John Doe
Tech Support
Web: www.sounddevices.com
So, more thant 4 years later, firmware still the same, problem not
solve. Sad. Bravo sound devices ! Happy not having bought this card at
the time !
Le Sat, 16 Mar 2019 22:00:03 +0100,
Hans Wilmers <hanswil(a)notam02.no> a écrit :
On 16/03/2019 19:14, Chris Caudle wrote:
On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org
wrote:
It is the other way around: The USBPre2 defaults to usb2 mode, and is
class compliant there. In class compliant mode, it is limited to
24/48.
I recall that to get into usb1 mode, I needed to push one of the
buttons on the device during connection to the PC. I don't know
whether this is still the case in newer firmware releases.
/ Hans
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
https://lists.linuxaudio.org/listinfo/linux-audio-user On March 16, 2019 6:26:58 PM GMT+01:00, Moshe
Werner
<moshwe(a)gmail.com> wrote:
> Afaik, usb2 CC works up to 48kHz...
Audio Class 1 is defined for up to 48kHz.
Audio Class 2 is can use higher sample rates.
It seems that the Sound Devices Pre2 defaults to class 1 mode, but
based on the documentation it seems to have a class 2 mode
available. At this point you would need to contact Sound Devices to
confirm it is actually class 2 compliant, or if it uses a
proprietary driver. If it is class 2 compliant, you need to know
how to make the device switch to class 2 mode.
1:33 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
Maybe not marked as <<Legacy>> because the device is still manufactured and
sold new?
On March 20, 2019 12:06:12 PM HST, list <list(a)contacte.xyz> wrote:
Hello.
With an firmware not updated since «Last update May 9, 2011»
I think it's safe to say that this card will never work at higher
sample rate - running linux.
It's not «legacy» on the Sound Devices web site, i wonder why.
The list keep an old talk on this card and this problem :
https://lists.linuxaudio.org/archives/linux-audio-user/2014-September/09920…
Older :
https://lists.linuxaudio.org/archives/linux-audio-user/2013-January/089199.…
And i can quote a support email from Sound Devices where i asked about
this issues - wich is not an issue for them for sure.
De : John Doe <JohnDoe(a)sounddevices.com>
À : "me(a)yahoo.fr" <me(a)yahoo.fr>
Envoyé : mercredi 10 décembre 2014 à 16:58:13 UTC+1
Objet : Sound Devices Product Inquiry (33173)
Hello You,
Thank you for contacting Sound Devices. I don't know when or if they
will make this request available but I will gladly pass this request
to
engineering for future firmware consideration. Thanks.
Best Regards,
John Doe
--
John Doe
Tech Support
Web: www.sounddevices.com
So, more thant 4 years later, firmware still the same, problem not
solve. Sad. Bravo sound devices ! Happy not having bought this card
at
the time !
Le Sat, 16 Mar 2019 22:00:03 +0100,
Hans Wilmers <hanswil(a)notam02.no> a écrit :
is
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
Sent from my Android device with F/LOSS K-9 Mail.
On 16/03/2019 19:14, Chris Caudle wrote:
> On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org wrote:
>> On March 16, 2019 6:26:58 PM GMT+01:00, Moshe Werner
>> <moshwe(a)gmail.com> wrote:
>>> Afaik, usb2 CC works up to 48kHz...
>
> Audio Class 1 is defined for up to 48kHz.
> Audio Class 2 is can use higher sample rates.
>
> It seems that the Sound Devices Pre2 defaults to class 1 mode, but
> based on the documentation it seems to have a class 2 mode
> available. At this point you would need to contact Sound Devices
to
confirm
it is actually class 2 compliant, or if it uses a
proprietary driver. If it is class 2 compliant, you need to know
how to make the device switch to class 2 mode.
It is the other way around: The USBPre2 defaults to usb2 mode, and class compliant there. In class compliant mode,
it is limited to
24/48.
I recall that to get into usb1 mode, I needed to push one of the
buttons on the device during connection to the PC. I don't know
whether this is still the case in newer firmware releases.
/ Hans
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
https://lists.linuxaudio.org/listinfo/linux-audio-user
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
https://lists.linuxaudio.org/listinfo/linux-audio-user
3:25 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
Maybe.
But with an non-updated firmware in 8 years - 2873 days to be honest -
i bet on unsold stocks of this outdated sound card.
Or if they handle the website like theirs firware update, someone
forgot to put it in legacy :)
Beautiful piece of hardware on paper - and with a Mac/Windows - useless
expensive paper weight with Gnu/Linux.
Le Wed, 20 Mar 2019 13:29:50 -1000,
"David W. Jones" <gnome(a)hawaii.rr.com> a écrit :
Maybe not marked as <<Legacy>> because the
device is still
manufactured and sold new?
5:12 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On Wed, March 20, 2019 8:25 pm, list wrote:
useless expensive paper weight with Gnu/Linux.
That is an exaggeration. A device is not useless just because it cannot
record at 96k sample rate. At 48K sample rate it is still a high quality
interface in a small form factory, in a high quality (durable) case with
useful metering.
--
Chris Caudle
6:14 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
Yes it is. You are right.
But one's pay 100% of the price to use 30% of the specs.
Or to not have access of 70% of the specs.
That is the exaggeration.
At 44K or 48K - which is fine, you're right - there is a lot of cheaper
devices available with full control/support with a Gnu/Linux powered
computer.
Le Wed, 20 Mar 2019 22:12:29 -0500,
"Chris Caudle" <chris(a)chriscaudle.org> a écrit :
On Wed, March 20, 2019 8:25 pm, list wrote:
useless expensive paper weight with Gnu/Linux.
That is an exaggeration. A device is not useless just because it
cannot record at 96k sample rate. At 48K sample rate it is still a
high quality interface in a small form factory, in a high quality
(durable) case with useful metering.
1:59 p.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On 21/03/2019 04:12, Chris Caudle wrote:
On Wed, March 20, 2019 8:25 pm, list wrote:
I second that. Good quality analog limiters also, and the thing is a
dream to work with.
/ Hans
useless expensive paper weight with Gnu/Linux.
That is an exaggeration. A device is not useless just because it cannot
record at 96k sample rate. At 48K sample rate it is still a high quality
interface in a small form factory, in a high quality (durable) case with
useful metering.
8:48 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On 3/20/19 3:25 PM, list wrote:
Maybe.
But with an non-updated firmware in 8 years - 2873 days to be honest -
i bet on unsold stocks of this outdated sound card.
I think if it was unsold stock of an outdated sound card, they wouldn't
be selling it for so much money.
Or if they handle the website like theirs firware
update, someone
forgot to put it in legacy :)
My opinion is that they're still manufacturing it, not selling age-old
unsold stock.
Like the Volkswagen Beetle I used to have. VW would go years and years
between changing anything about it. It was a good way to maximize return
on investment if they didn't have to spend money retooling factories
every year because some ego-centric designer decided the car needed
"that special touch" that only they could give it. ;)
Beautiful piece of hardware on paper - and with a
Mac/Windows - useless
expensive paper weight with Gnu/Linux.
Well, the rest of my setup certainly doesn't operate at 96K, nor do I
have the equipment quality (instruments, mics, etc) that would benefit
from recording at 96K.
Le Wed, 20 Mar 2019 13:29:50 -1000,
"David W. Jones" <gnome(a)hawaii.rr.com> a écrit :
> Maybe not marked as <<Legacy>> because the device is still
> manufactured and sold new?
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
9:51 p.m.
New subject: sound devices usb pre 2. usb 2 with 96k
Ah ! The car analogy...
I am soundly beaten.
I surrender
Le Wed, 20 Mar 2019 20:48:13 -1000,
david <gnome(a)hawaii.rr.com> a écrit :
Like the Volkswagen Beetle I used to have. VW would go years and
years between changing anything about it. It was a good way to
maximize return on investment if they didn't have to spend money
retooling factories every year because some ego-centric designer
decided the car needed "that special touch" that only they could give
it. ;)
16 Mar
16 Mar
11:52 p.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org wrote:
At least that is how it seems to be in this case with
this device. (but I
think i had 96k running even on usb1 devices before)
Did you hold down input 1 source select when you started the device? The
quick start guide indicates that will force the device into full speed
mode (i.e. 12Mb/s USB 1 speed rather than 480Mb/s USB 2 high speed).
The Sound Devices information seems out of date, the documentation
indicates that linux will only support full speed mode, but I think that
is not correct. If you held down input 1 select when powering on to force
full speed mode, do not do that, let the device initialize in high speed
mode. Linux USB driver has supported USB 2 audio class and high speed
mode for quite a long time.
--
Chris Caudle
17 Mar
17 Mar
12:46 a.m.
New subject: sound devices usb pre 2. usb 2 with 96k
On 16/03/2019 22:52, Chris Caudle wrote:
On Sat, March 16, 2019 12:38 pm, olaf(a)klingt.org
wrote:
The output I posted is in USB 2 mode.
I realized this too after reading the manual. And looked at the
different output of lsusb -t (the difference is only the indication as
you say 12MB/s vs 480MB/s)
I should inform them to update the manual.
I realized there is also a alsa mailing list. I guess to evaluate if
there are possibilities to improve the driver I should go there.
thanks for all the comments.
At least that is how it seems to be in this case
with this device. (but I
think i had 96k running even on usb1 devices before)
Did you hold down input 1
source select when you started the device? The
quick start guide indicates that will force the device into full speed
mode (i.e. 12Mb/s USB 1 speed rather than 480Mb/s USB 2 high speed).
The Sound Devices information seems out of date, the documentation
indicates that linux will only support full speed mode, but I think that
is not correct. If you held down input 1 select when powering on to force
full speed mode, do not do that, let the device initialize in high speed
mode. Linux USB driver has supported USB 2 audio class and high speed
mode for quite a long time.
2302
days inactive
2307
days old
linux-audio-user@lists.linuxaudio.org
12 comments
6 participants
participants (6)
-
Chris Caudle -
david -
David W. Jones
-
Hans Wilmers -
list -
olaf＠klingt.org