Topic: How close are the clocks on two same model Recorder's

[Hypnocracy]

I've been very lucky that my Fostex and AD20 match up almost perfectly even over a long 2hr set...but the iRiver bitbucket has gotten long in the tooth...looking at more modern solutions

Considering buying a second Fostex FR2LE but not certain the files will sync up without stretching one to match the other....anyone have experience with sync of files from two exact same model recorders?

[runonce]

I've been very lucky that my Fostex and AD20 match up almost perfectly even over a long 2hr set...but the iRiver bitbucket has gotten long in the tooth...looking at more modern solutions

Considering buying a second Fostex FR2LE but not certain the files will sync up without stretching one to match the other....anyone have experience with sync of files from two exact same model recorders?

Not reliably close...anything but clock sync and you are using sources that are out of tune musically.

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I've been very lucky that my Fostex and AD20 match up almost perfectly even over a long 2hr set...but the iRiver bitbucket has gotten long in the tooth...looking at more modern solutions

Considering buying a second Fostex FR2LE but not certain the files will sync up without stretching one to match the other....anyone have experience with sync of files from two exact same model recorders?

Not reliably close...

+1

they won't be the same. Essentially any drift is drift when you're working on it regardless of how far it happens.

A really fun experiment would be to see how much drift is induced by heat affecting the clock (so put one unit next to a ad1k and the other somewhere else in the bag.  )

[willndmb]

no way to know for sure
i have had 2 recorders that where way off and others that where good for like an hr before you saw a drift
with that said if you wanted to mess around, i just posted a matt nathanson show (8/24) to the archive, it has 2 sources both with m10 and you could see how those are

[bryonsos]

Just wait for a 680 to show up in the YS so I can borrow it 

[jbell]

Just wait for a 680 to show up in the YS so I can borrow it 

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Just wait for a 680 to show up in the YS so I can borrow it 

[Hypnocracy]

Seriously....never knew I've been so lucky with the FR2LE and AD20 syncing up so well...can I see a shift in 2hr's...if you zoom in far enough yeah...but you can't hear it...so I just go to a rim shot in the middle of the recording and line up on that spliting that 3mil seconds...

It has been nice having two units not tied to one another...or running XLR cable all over the venue too...

[bryonsos]

Seriously....never knew I've been so lucky with the FR2LE and AD20 syncing up so well...can I see a shift in 2hr's...if you zoom in far enough yeah...but you can't hear it...so I just go to a rim shot in the middle of the recording and line up on that spliting that 3mil seconds...

It has been nice having two units not tied to one another...or running XLR cable all over the venue too...

So fix the battery issue with the AD20 and resume. Then buy a 680 in the YS so I can borrow it!

[Hypnocracy]

Battery is on order and shipping from Singapore...can only hope that fixes it!

Doubt I'll go for a third iRiver

[twatts (pants are so over-rated...)]

I've been very lucky that my Fostex and AD20 match up almost perfectly even over a long 2hr set...but the iRiver bitbucket has gotten long in the tooth...looking at more modern solutions

Considering buying a second Fostex FR2LE but not certain the files will sync up without stretching one to match the other....anyone have experience with sync of files from two exact same model recorders?

I'm not sure exactly how the HD-P2 Time Code input works, but it has one...  Maybe you can slave it off the FR2LE???  I've thought about buying a second P2 for 4tracks...  But then its cheaper and easier to get a 4track recorder (or more)...

Terry

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I'm not sure exactly how the HD-P2 Time Code input works, but it has one...  Maybe you can slave it off the FR2LE???

the fostex has no digi in/out. It's a nice recorder, on it's own, just don't plan on using it as part of a group unless you love stretch work.

[Gutbucket]

I used to record to twin R-09s all the time.  After transfering the files to the computer I found needed to stretch one source in addition to sync'ing the two for recordings of significant length..

However, I would also often playback the recordings direclty from both recorders simultaneously, manually sync'ing them at the start (a tricky learned skill requiring patience!) and they would then playback in perfect sync until the 2GB file split.  I surmized that the timing differences between the clocks which were encoded in the recordings were compensated by the very same clock differences on playback.  I never swaped cards between machines before playback to see if the timing differences between them doubled instead of canceled out, but that would have been an interesting experiment.

That's not much help to you, but I thought it was pretty interesting.

[runonce]

I used to record to twin R-09s all the time.  After transfering the files to the computer I found needed to stretch one source in addition to sync'ing the two for recordings of significant length..

However, I would also often playback the recordings direclty from both recorders simultaneously, manually sync'ing them at the start (a tricky learned skill requiring patience!) and they would then playback in perfect sync until the 2GB file split.  I surmized that the timing differences between the clocks which were encoded in the recordings were compensated by the very same clock differences on playback.  I never swaped cards between machines before playback to see if the timing differences between them doubled instead of canceled out, but that would have been an interesting experiment.

That's not much help to you, but I thought it was pretty interesting.

Thats probably true - in the sense that there is a 3rd clock in play - the one on the playback device. Once we import to the computer, that third clock is what brings out the sync differences.

If using the native clock - you might just have two "synced" sources...

Interesting!

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Bean used to do that with 2 NJB3 units for a long time. Labeled each and played one back and did a D>A>D transfer to the other, then transferred both to the computer.

As long as you don't have any major heat based distortions on the crystal, that can work.