Re: sound devices usb pre 2. usb 2 with 96k

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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/099206.html

Older : 

https://lists.linuxaudio.org/archives/linux-audio-user/2013-January/089199.html

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@xxxxxxxxxxxxxxxx>
À : "me@xxxxxxxx" <me@xxxxxxxx>
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@xxxxxxxxxx> a écrit :

> On 16/03/2019 19:14, Chris Caudle wrote:
> > On Sat, March 16, 2019 12:38 pm, olaf@xxxxxxxxxx wrote:  
> >> On March 16, 2019 6:26:58 PM GMT+01:00, Moshe Werner
> >> <moshwe@xxxxxxxxx> 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 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@xxxxxxxxxxxxxxxxxxxx
> https://lists.linuxaudio.org/listinfo/linux-audio-user
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