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TranceAddict Forums > DJing / Production / Promotion > Production Studio > Fixing my Latency Settings in Logic
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Phantax
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Registered: Jan 2003
Location:

see... thats what i cant understand here... isnt my goal to have the smallest amount of latency possible?

Old Post Apr-27-2004 15:09  Canada
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Registered: Jul 2002
Location: GTA #303 ;P

Well maybe it's the opposite. If a buffer can't be processed in time it will get lost, causing one instument to be one buffer ahead of the others.

Imagine an array of water tanks. What you do is run along them and fill a bucket. Each round you'll have to empy it at an exact time. Ensuring a constant output flow. With a small bucket you'll have to run long distances for small amounts of water. If one of the tanks does not fill the bucket fast enough you wont be able to make it in time do flush the water where it belongs. You'll have to run back to the start and empty the bucket on the way. But now the last tanks weren't properly processed and emptying them will take more time... the water coming from them is basically delayed... now if you take a larger bucket, you won't be in such a hurry to make it in time from flushing back to the start, as the water of the last bucket will take a litte time to flush.

As I said, with small buffers it's the buffer handling, that becomes critical and time consuming.

Hope that will make it clearer.


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Old Post Apr-27-2004 15:38  Germany
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Phantax
Supreme tranceaddict



Registered: Jan 2003
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yes good analogy... so how would i set up my buffers so that i can produce music that is timed perfectly?

Old Post Apr-27-2004 15:50  Canada
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Registered: Jul 2002
Location: GTA #303 ;P

Is your system running in sync using only Logic instument? If not, try larger buffers or different drivers.
If you got that, simply predelay the MIDI Tracks for your hardware corresponding to to the buffersize.

(trackdelay/ms) = - (buffersize/samples) * (samplerate/kHz)

Timing doesn't need to be that exact. MIDI is a serial protocol anyway so timing can never be exactly on spot. The human ear percieves impulses up to 10ms apart as only one impulse. MIDI itself transmits at 8kHz meaning two sent MIDI notes are in any case at least 5 samples apart.


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Old Post Apr-27-2004 16:27  Germany
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Phantax
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Registered: Jan 2003
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right now my set up is just logic audio platinum and installed vst's.... z3ta, albino.... that stuff.

Old Post Apr-27-2004 16:33  Canada
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Registered: Jul 2002
Location: GTA #303 ;P

So my guess would be a driver problem. Can you switch to a different driver system like PC AV? Does it work there?


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Old Post Apr-27-2004 16:42  Germany
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Phantax
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Registered: Jan 2003
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im not able to use my production computer and be here at the same time..... but i know there are so many different options in my audio driver tab 1 & 2... i wouldn't know where to start.. and im pretty sure i've messed them up beyond belief as well lol.

i dont understand what options are for what and which ones i need to set to whatever so that they do so and so.

i have no understanding of my audio driver tabs at all.

i want it set up so that my timing is flawless :/

Old Post Apr-27-2004 16:59  Canada
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Phantax
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i believe my driver system has always been pc av... which means? and what is the alternative and what does that mean?

Old Post Apr-28-2004 11:37  Canada
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Registered: Jul 2002
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Your Delta 44 supports ASIO. This is the way to go.
PC AV uses Windows MME and DirectSound drivers. ASIO is a low latency soundsystem designed especially for multichannel streaming audio.

Just uncheck PC AV and check ASIO.


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Old Post Apr-28-2004 12:08  Germany
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