Topic: Confused: L/R channels swapped

[Brian Skalinder]

FYI, as reported in my full ODL-312 testing thread, I nailed down this problem to my EgoSys Waveterminal 2496, NOT the JB3.

Ok - other users have reported that the JB3 will swap channels if you use the pause button.

I've encountered no such problems.  Anecdotal evidence, no different than the CO2. 

I think this needs to be raised to "hair on fire" level for the JB3 users...seems like a huge flaw in this recorder...not that big of a deal if you keep it in mind...who uses pause anyway?!!!

Eh, L/R swap isn't that big a deal, and it's easy to confirm and/or work around (per your key jingle comment).  At least the bits are still there, unlike the CO2.

[cfbarlow]

So I guess do not use the pause/record function.  And for me I always used that, I guess a hold over from my dat days; pause/record is a much faster way to start recording, none of that waiting for the jb3 to load a file and start.  Oh well, I guess worse things could happen.  Thanx again guys for the input.

-CHarlie Barlow

[zhianosatch]

brian,
i have the same problem with my wavterminal 2496. go figure!

[Kwonfidelity]

I/O conflict being caused by CEP and your CPU.  It's a known problem.
It also exists with audio cards independently from software, and vice versa.

[jeromejello]

interesting little thing... i am playing with my new mics    and when i am monitoring the sound in the room, the level meters on the jb3 are switched from left to right, but when i press record, the levels correspond to the correct channel (red / right).... i guess this is only true if i am reading the meters correctly.  the first column would be left and second right.

thinking about this more makes me wonder if i am even orientating myself correctly.  i assume that if you are facing the music, the right side is the right channel to be recorded by the right mic.  eh... too tired to do anymore tonight - just happy to play with the new toys... 

[macdaddy]

i found out that it was happening to me at the spdif input of the ap2496 - the card would switch the channels during the transfer. i remember reading about this on the avs forums years ago, when i first bought the card. but i forgot about it when s started transferring DATs. there is reg setting to swap channels on the card (rather than having to do it via DSP), but i forget what it is. now i have to retransfer everything from the past several years (ACK!)...

[tim in jersey]

I can attest to the fact that the WT2496 does indeed swap channels via the coax digi-in. It monitors normally, but when I play back the .wav off the HDD the channels are indeed swapped. FWIW, I'm running win2K and the card does this everytime without fail.

[F.O.Bean]

i found out that it was happening to me at the spdif input of the ap2496 - the card would switch the channels during the transfer. i remember reading about this on the avs forums years ago, when i first bought the card. but i forgot about it when s started transferring DATs. there is reg setting to swap channels on the card (rather than having to do it via DSP), but i forget what it is. now i have to retransfer everything from the past several years (ACK!)...

just do channel swaps in wavelab or something that will save you many months

[macdaddy]

i found out that it was happening to me at the spdif input of the ap2496 - the card would switch the channels during the transfer. i remember reading about this on the avs forums years ago, when i first bought the card. but i forgot about it when s started transferring DATs. there is reg setting to swap channels on the card (rather than having to do it via DSP), but i forget what it is. now i have to retransfer everything from the past several years (ACK!)...

just do channel swaps in wavelab or something that will save you many months

yeah, but that puts a dsp step in there that i do not want...

[F.O.Bean]

could you REALLY hear the DAW doing a chennel swap i know i prolly couldnt

i trust wavelab/soundforge doing any DSP work, thats whatthey were made to do

i dunno, i should try it myself and see, but i doubt HIGHLY you could hear artifacts or something strange in a channel swap in wavelab, YMMV

[macdaddy]

could you REALLY hear the DAW doing a chennel swap i know i prolly couldnt

i trust wavelab/soundforge doing any DSP work, thats whatthey were made to do

i dunno, i should try it myself and see, but i doubt HIGHLY you could hear artifacts or something strange in a channel swap in wavelab, YMMV

it is more of a theoretical thing with me. who knows what i hear, or think i hear..? and who knows what i will hear on the next system i build..?

i am certainly not trying to insinuate that i have golden ears; i simply want to do my transfers right.

[F.O.Bean]

could you REALLY hear the DAW doing a chennel swap i know i prolly couldnt

i trust wavelab/soundforge doing any DSP work, thats whatthey were made to do

i dunno, i should try it myself and see, but i doubt HIGHLY you could hear artifacts or something strange in a channel swap in wavelab, YMMV

it is more of a theoretical thing with me. who knows what i hear, or think i hear..? and who knows what i will hear on the next system i build..?

i am certainly not trying to insinuate that i have golden ears; i simply want to do my transfers right.

thats  fair, i feel ya there, i used to be the saem way, but after lots of listening sessions on my current playback system, i cant hear stuff like that, especially when i do it in wavelab, it seems more rock solid IMO when it comes to DSP work

[SparkE!]

You know, I don't have Wavelab, but it seems to me that there should be some way for you to test whether the channel swapped version had bit literal copies of the original tracks, just with the channels swapped.  I can't imagine that your DSP routine that swaps channels would actually do anything but take the left channel samples and put them into the right channel and vice versa.  Do you have a short track that you could post both original and channel swapped versions?  I'd be happy to take a look to see if there are any differences except for swapping the channels.

I just hate to see tapers spend their time re-doing things if it can be done with less effort in less time another way.  We have too much to do as it is.  Heck, I probably have 3 dozen shows that are still sitting on the original tapes (and I'm not a heavy taper). I'd hate to think that I had to completely re-do every other show I've ever recorded before I could start working on the shows I've never even transferred, especially if all that was wrong was that the channels were swapped.