Profire-I told you

Skaberlake · 14th January 2007

I just got this mail from m-audio.Strange no-one else noticed this.Must be all units.

We just finished running those tests, and we were able to duplicate the issue you reported. We did notice that when playing a track from Pro Tools and recording it back in (Via an ADAT Loop), the new track was showing up about 150 samples earlier than the original file. Changing buffer sizes only made a slight difference, 10 samples or so (from 128 samples to 2048 samples buffer sizes).

We have logged this issue and escalated it to our software development team for further investigation.

Jared Adler
M-Audio
Technical Support
5795 Martin Rd.
Irwindale, CA 91706 USA
http://www.m-audio.com
(626) 633-9055
Where do you want to take your music?
______________________________________________________

blakegaston · 3rd August 2008

150 samples EARLIER? That makes no sense !?!?

basskater87 · 3rd August 2008

"We're sorry to inform you that your Profire's clock is out of sync.......please refer to the time-space continuum calibration manual that came with your Profire"

MicSlut666 · 5th August 2008

gpiccolini · 5th August 2008

...This happens because the drivers compensate for the delays they have in the conversion and any other process they may have inside the box. Once you go out and back in via ADAT there´s no conversion delays but the driver still compensates for them because it doesn´t know if the audio is digital or not. It happens with RME and MOTU, etc. I´m not saying it´s nice, just explaining it´s not really a bug... the only way to solve this IMO is to split the driver in two...one for analog I/O and the other for digital...maybe this lead to worse problems. BTW: why do you do that?...a bounce gives you the same results, or it should...

14th January 2007	#1
Skaberlake Gear interested Join Date: Jan 2007 Posts: 4 Thread Starter	Profire-I told you I just got this mail from m-audio.Strange no-one else noticed this.Must be all units. We just finished running those tests, and we were able to duplicate the issue you reported. We did notice that when playing a track from Pro Tools and recording it back in (Via an ADAT Loop), the new track was showing up about 150 samples earlier than the original file. Changing buffer sizes only made a slight difference, 10 samples or so (from 128 samples to 2048 samples buffer sizes). We have logged this issue and escalated it to our software development team for further investigation. Jared Adler M-Audio Technical Support 5795 Martin Rd. Irwindale, CA 91706 USA http://www.m-audio.com (626) 633-9055 Where do you want to take your music? ______________________________________________________

5th August 2008	#4
MicSlut666 Gear addict Join Date: Nov 2006 Posts: 442	bump

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3rd August 2008	#2
blakegaston Gear nut Join Date: Jul 2008 Location: Washington Posts: 149	150 samples EARLIER? That makes no sense !?!?

3rd August 2008	#3
basskater87 Gear maniac Join Date: Jan 2007 Posts: 217	"We're sorry to inform you that your Profire's clock is out of sync.......please refer to the time-space continuum calibration manual that came with your Profire"

5th August 2008	#5
gpiccolini Gear maniac Join Date: May 2008 Location: Madrid Posts: 175	...This happens because the drivers compensate for the delays they have in the conversion and any other process they may have inside the box. Once you go out and back in via ADAT there´s no conversion delays but the driver still compensates for them because it doesn´t know if the audio is digital or not. It happens with RME and MOTU, etc. I´m not saying it´s nice, just explaining it´s not really a bug... the only way to solve this IMO is to split the driver in two...one for analog I/O and the other for digital...maybe this lead to worse problems. BTW: why do you do that?...a bounce gives you the same results, or it should...