Audio playback problem

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This forum is for seeking solutions to technical problems involving Digital Performer and/or plug-ins on MacOS, as well as feature requests, criticisms, comparison to other DAWs.
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derek3056
Posts: 6
Joined: Sun Aug 29, 2010 10:22 am
Primary DAW OS: Unspecified

Audio playback problem

Post by derek3056 »

For some reason whenever I record audio coming from the built-in input, the playback is always slightly early. I always have to zoom in to the audio file and pull it to the right a tiny bit so that it will be on point. Pain in the butt! How can I fix this?

I'm using DP 5.12 with a G5 loaded with plenty of RAM and processing power.
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FMiguelez
Posts: 8266
Joined: Sun Oct 24, 2004 10:01 pm
Primary DAW OS: MacOS
Location: Body: Narco-México Soul/Heart: NYC

Re: Audio playback problem

Post by FMiguelez »

.

Is that "delay" always consistent? Is it always by the same amount?
Mac Mini Server i7 2.66 GHs/16 GB RAM / OSX 10.14 / DP 9.52
Tascam DM-24, MOTU Track 16, all Spectrasonics' stuff,
Vienna Instruments SUPER PACKAGE, Waves Mercury, slaved iMac and Mac Minis running VEP 7, etc.

---------------------------

"In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth." ― Richard Feynman
derek3056
Posts: 6
Joined: Sun Aug 29, 2010 10:22 am
Primary DAW OS: Unspecified

Re: Audio playback problem

Post by derek3056 »

There's no delay. I have my buffer setting at about 256 when i'm recording. So there's no latency when i'm monitoring the live feed. But when I play the audio back, it's a tiny bit early. It's almost like it's over compensating for something.
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FMiguelez
Posts: 8266
Joined: Sun Oct 24, 2004 10:01 pm
Primary DAW OS: MacOS
Location: Body: Narco-México Soul/Heart: NYC

Re: Audio playback problem

Post by FMiguelez »

derek3056 wrote:There's no delay. I have my buffer setting at about 256 when i'm recording. So there's no latency when i'm monitoring the live feed. But when I play the audio back, it's a tiny bit early. It's almost like it's over compensating for something.
That's what I meant. Is that "tiny bit early" always consistent? How much is a tiny bit?
Mac Mini Server i7 2.66 GHs/16 GB RAM / OSX 10.14 / DP 9.52
Tascam DM-24, MOTU Track 16, all Spectrasonics' stuff,
Vienna Instruments SUPER PACKAGE, Waves Mercury, slaved iMac and Mac Minis running VEP 7, etc.

---------------------------

"In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth." ― Richard Feynman
derek3056
Posts: 6
Joined: Sun Aug 29, 2010 10:22 am
Primary DAW OS: Unspecified

Re: Audio playback problem

Post by derek3056 »

it's very consistent. Does it every time in the same damn spot. It plays the audio wave back just a hair bit early.

It doesn't do it with MIDI, instrument tracks, or Rewire. If I record a software synth in realtime, it plays back fine. It only plays back too early when recording from the built-in audio jack on the back of my G5.

Just so you clearly understand:

Say you want to add a bass guitar to a drum loop you just imported into DP. While your recording your bass line live, everything sounds fine and perfectly on beat. When your finished recording and begin to play everything back, the bass line is playing slightly ahead of the drum loop. Sure, it's easy to fix by just dragging the wave over a little to sync up, but you shouldn't have to do that every damn time.
derek3056
Posts: 6
Joined: Sun Aug 29, 2010 10:22 am
Primary DAW OS: Unspecified

Re: Audio playback problem

Post by derek3056 »

nobody knows what this is???
jflandau
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Joined: Mon Oct 31, 2005 6:48 am
Primary DAW OS: MacOS
Location: London, UK
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Re: Audio playback problem

Post by jflandau »

I'm having this same problem currently...

It might be a buffer size issue, I think. I'm doing overdub tracking and my buffer size is set large (1024). Is this too big, and what's small enough to make recording latency as close to zero as is possible?

I'm going to test my theory and get back to you.

John
jflandau
Posts: 15
Joined: Mon Oct 31, 2005 6:48 am
Primary DAW OS: MacOS
Location: London, UK
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Re: Audio playback problem

Post by jflandau »

Well, I've determined that it is NOT the buffer size. It's the same right down to a buffer size of 64.
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