lexicon mpx 100 and m-audio fast track pro s/pdif compatibility question

[foebick]

I have tried to connect a lexicon mpx100 RCA connector s/pdif ouput to the s/pdif input on the m-audio fast track without success.

The lexicon has a sample rate of 44.1khz and 20bits A/D where as the m-audio has a rate of 44.1khz but only a choice of 16 or 24 bit sample depth - does that mean they are incompatible and will never work together/

 

[ecc83]

I have tried to connect a lexicon mpx100 RCA connector s/pdif ouput to the s/pdif input on the m-audio fast track without success.

The lexicon has a sample rate of 44.1khz and 20bits A/D where as the m-audio has a rate of 44.1khz but only a choice of 16 or 24 bit sample depth - does that mean they are incompatible and will never work together/

I cannot say for sure but since the vast majority of S/PDIF inputs on AI's, PCI cards and other gear cope with 16 and 24 bit sources it beggars belief that the Lexicon would not work.
In fact I do remember running a Philips Digital cassette recorder into a 2496 and the former was 18bits!

Gotta work, surely?

Dave.

 

[foebick]

I cannot say for sure but since the vast majority of S/PDIF inputs on AI's, PCI cards and other gear cope with 16 and 24 bit sources it beggars belief that the Lexicon would not work.
In fact I do remember running a Philips Digital cassette recorder into a 2496 and the former was 18bits!

Gotta work, surely?

Dave.

Thanks for replying
it may be the the cable then, I will get another one see if that works

 

[mixsit]

I have tried to connect a lexicon mpx100 RCA connector s/pdif ouput to the s/pdif input on the m-audio fast track without success.

The lexicon has a sample rate of 44.1khz and 20bits A/D where as the m-audio has a rate of 44.1khz but only a choice of 16 or 24 bit sample depth - does that mean they are incompatible and will never work together/

You didn't mention if there's anything is going into the Lex

 

[foebick]

Hi
Well the new digital cable did not work, so I am still at a loss to know why
BTW I'm recording an electric guitar and the other 1/4 jacks inputs work but are a tad noisy - I want to us the s/pdif to avoid this and also to avoid unplugging when i want to use the power-amp input

 

[ecc83]

Got it!

The attached clearly shows that S/PDIF should run a 20 bit stream and at any sample rate up to 48kHz.

Must be some other problem.

Dave.

 

[foebick]

I have set up the m-audio interface to accept s/pdif as in arcaxis's post but at 44.1khz

The signal path is a follows:
Strat > pedal board > stereo tube pre-amplifier > Lexicon mpx 100 dual channel > m-audio fast track pro

As I mentioned before the analogue channel works between the lexicon and m-audio but i cannot connect using the RCA s/pdif output

 

[foebick]

Back a bunch of years ago I couldn't get a Roland MMP-2 (mic pre) to talk S/PDIF with an M-Audio 2496 PCI card. Yet my Lexicon MPX-1 would work with the 2496 card fine and I could daisy chain the MMP-2 through the MPX-1 to the 2496 and use it that way. Some things just are meant to be sometimes, but that MXP100 should work I would think.

I'm assuming you don't get that "connected" indication in the panel(?)

Have you tried different sequences of powering things up?

https://homerecording.com/bbs/gener...e-2496-roland-mmp-2-a-178983/?highlight=mmp-2

Yes, the m-audio panel indicates that it is connected but i cannot hear anything
Update:
Strangely now if i attempt to record in Audition I can see the waveform whilst recording but cannot hear the output yet I can on playback

 

[foebick]

Just another update
I have just updated the software to the latest 6.1.10 - i run vista 64 OS and i wasn't quite sure if it would work but it seems to.
There is a different look to the user interface and the firmware was updated during installation.
It now tells me that it is connected but now also streaming, however i still have the same problem that i cannot monitor the s/pdif input
whilst recording and although there is a stereo output it will only record a choice of either left or right channel. On playback I can hear the recording.