Topic: V3 (< V3497) digital outputs out of phase relative to analog outputs

[gratefulphish]

I just read this thread.  It appears that this issue could be very important if I am using a V3 on two channels, and recording the board from the other two, without having the fix done.  If I am reading/understanding correctly, one of the two channels is 180 degrees out of phase.  Is it as simple as reversing the polarity of one of the V3 channels when mixing, or is there something else that I need to do, until this unit gets the fix?  Will I be able to easily see which channel is screwed up when looking at the four waveforms on the computer?  Glad I read this before the new machine arrived.

[Brian Skalinder]

If I am reading/understanding correctly, one of the two channels is 180 degrees out of phase.

Not quite.  The digital output pair of channels has inverted polarity relative to the analog output pair of channels.  The polarity within each pair is fine.

Is it as simple as reversing the polarity of one of the V3 channels when mixing, or is there something else that I need to do, until this unit gets the fix?  Will I be able to easily see which channel is screwed up when looking at the four waveforms on the computer?  Glad I read this before the new machine arrived.

Again, not quite - you'll want to check the polarity of the pair of V3 channels relative to your other source.  You should check if you're recording on two different pieces of gear, or if mixing AUD + SBD, anyway.  If one pair is inverted relative to the other, yes...it's as easy as reversing the polarity when mixing in post-production.

[gratefulphish]

I am going to be recording four separate channels, two via the V3 into the R-4 Pro, and two from the board, directly into the machine.  So what exactly do I need to be concerned about when putting it on the computer?  Are the board and mic feeds going to be out of phase?

BTW, after now crossing the newbie threshold, and being able to +T, you are receiving my first one for this and so many other helpful responses that you have given me since I got on this board.  Wow, even rounded you up to an even 3100 

[Brian Skalinder]

I am going to be recording four separate channels, two via the V3 into the R-4 Pro, and two from the board, directly into the machine.  So what exactly do I need to be concerned about when putting it on the computer?  Are the board and mic feeds going to be out of phase?

The MIC channels and the SBD channels may or may not be out of phase relative to one another, so just check to make sure.

[gratefulphish]

How do I check, can I see it in the waveform, or do I have to tell by just listening?

[Brian Skalinder]

How do I check, can I see it in the waveform, or do I have to tell by just listening?

Do both.  You should be able to see it in the waveform - sometimes when zoomed out, sometimes need to zoome -way- in.  Out-of-phase is most audible as a lack of bass, but it may not always be easy to hear, depending on the source.

[F.O.Bean]

or run v3>xlr's>r-4 and sbd>r-4 til you get the issue fixed

[gratefulphish]

or run v3>xlr's>r-4 and sbd>r-4 til you get the issue fixed

By that, I assume you mean analog out of the V3, and not AES/EBU.

[F.O.Bean]

or run v3>xlr's>r-4 and sbd>r-4 til you get the issue fixed

By that, I assume you mean analog out of the V3, and not AES/EBU.

exactly