Topic: Problem passing a digital signal from a da-p1 to a ua-5>jb3 setup,, help please

[housermix]

I do not recall the power light ever blinking. I did shut the ua-5 off and then back on anytime I made a change.

I am going to pick up a hosa, but I still don't see what the problem is with sending a digital coax in, optical out, I mean does no one that uses a ua-5 ever run a digital signal into?

[johnw]

By any chance did the power light on the UA5 blink?

Ah ha...this indicates that SCMS is in play...(not sure if that is what the poster was getting at...)

So perhaps the UA5 saw the flag and passed on a non-copyable signal to the JB3...

However - I am inclined to accept twatts explantion...

That's what I was getting at, but it doesn't seem likely that the DAP1 was passing a SCMS signal. The blinking power light would probably have been very obvious.

I know I have read that the UA5 does not pass a bit accurate signal when fed a digital signal - this is why I would guess nobody uses it as a format converter. I always assumed this meant coax>optical but perhaps this was discovered when going coax in>usb or coax in>coax out.

Can you test the coax in>optical out again at home with a cd or dvd player like I suggested?

[Brian Skalinder]

I mean does no one that uses a ua-5 ever run a digital signal into?

Not really, no.  Most people are using their UA5s as strictly pre/ADC.  Since it resamples digital inputs, people tend to not use them for transferring recordings via recorder > UA5 > PC.  And since most people with their own mics/pre/ADC don't patch, no real need to feed it a digital signal from another deck/ADC.

[housermix]

By any chance did the power light on the UA5 blink?

Ah ha...this indicates that SCMS is in play...(not sure if that is what the poster was getting at...)

So perhaps the UA5 saw the flag and passed on a non-copyable signal to the JB3...

However - I am inclined to accept twatts explantion...

That's what I was getting at, but it doesn't seem likely that the DAP1 was passing a SCMS signal. The blinking power light would probably have been very obvious.

I know I have read that the UA5 does not pass a bit accurate signal when fed a digital signal - this is why I would guess nobody uses it as a format converter. I always assumed this meant coax>optical but perhaps this was discovered when going coax in>usb or coax in>coax out.

Can you test the coax in>optical out again at home with a cd or dvd player like I suggested?

I am going to test the coax tonight against my dvd player and see if a signal makes its way to the jb3, I will let you know the outcome

[bhtoque]

The UA-5 will not take and pass digital signals in different formats. It is really only meant to turn USB into coax or optical and vice versa. Oade digi mod prevents the usb>digi out part, but not in. Even a stock ua-5 would not do what you were trying. The block diagram illustrates this.

You would have to use a dedicated format converter and go dap-1>converter>jb3.

JAson

[dklein]

It doesn't work because the digimod taps the digital output of the ADC directly and jumps it over to the sample rate converter (which is connected to the s/pdif outputs).

If a signal doesn't cross the ADC, it doesn't hit the output.  When you give the UA-5 a digital signal, it does not hit the ADC.  The confusing part is that you can monitor the song from the headphone jack of the UA-5 - that's because you're monitoring from a separate DAC (in fact you are always monitoring A>D>A on the UA-5).

As far as recording goes, the digi-mod does not affect the ability to use a laptop thru USB.  It does affect playback thru USB - you can't do it on a digimod.  That is, you will not get any kind of output on the UA-5 when you play a sound file on a computer.  This connection is severed as part of the digi-mod.

I believe that on a stock UA-5, you can use it as a format/sample rate converter, but it needs to be hooked up to a computer.  It will not be bit accurate as the UA-5 works at 24/96 internally.

[housermix]

The UA-5 will not take and pass digital signals in different formats. It is really only meant to turn USB into coax or optical and vice versa. Oade digi mod prevents the usb>digi out part, but not in. Even a stock ua-5 would not do what you were trying. The block diagram illustrates this.

You would have to use a dedicated format converter and go dap-1>converter>jb3.

JAson

thanks Jason, just spoke with Oade and he said the same thing, the ua-5 does not to digital format conversions, I will need to get some like the odl-276


THANKS TO EVERYONE FOR ALL THERE INPUT ON THIS TOPIC
if i had 50 or more posts, I would +T everyone

hahah