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MIDI delay in my home studio

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00gumby
Wannabe
Wannabe


Joined: Apr 02, 2006
Posts: 2
MIDI delay in my home studio

I'm reposting this in more than one place because it's driving me crazy! I have two MIDI devices hooked into two different MIDI ins. I have a m-audio keyboard hooked into a Digidesign Mbox2. I also have a Yamaha drum kit hooked into a Steinberg M14. I'm running Cubase SL 3 and various Vsti's. So, when I lay down the track, the midi is put in just fine, so I know it's getting signal, yet the sound from the input comes out about three seconds late. When I play the recorded MIDI back it plays in sync with the play line. Why is there a lag in the sound from the MIDI input, and why does it only happnen when it's being played live and not recorded?

Post Sun Apr 02, 2006 9:21 pm 
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RhoneRanger
Engineer
Engineer


Joined: Nov 04, 2005
Posts: 332

NO CROSS POSTING!!!!!!


Anyway, midi 'lag' (latency) comes from DMA buffer sizes. Play with these settings until you get what you want. The lag is not the actual midi data coming in, the lag is a result of what you want to play.

Setting a buffer size too big will cause huge latency. Setting a buffer size too small will cause your sound to be "choppy". The way I do it, is just to test. First I set the frequency I want to record (usually 96K) then I set the buffer size as small as I can and not get any of those "chops"

Although, on my current machine I have a ton of ram and a pretty decent processor, so I get a small buffer size with 0 latency at 96K.

Post Thu Apr 06, 2006 5:37 pm 
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uncle_jerr
Moderator
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Joined: Jan 05, 2005
Posts: 410
Location: Illinois
wow

Quote:
Although, on my current machine I have a ton of ram and a pretty decent processor, so I get a small buffer size with 0 latency at 96K.


icon_eek.gif
drool drool

Post Wed Apr 12, 2006 4:54 am 
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RhoneRanger
Engineer
Engineer


Joined: Nov 04, 2005
Posts: 332

Yes, I was pretty amazed myself! When I tried it I had a "Holy Shit' moment.

I used to route one set outs of my Delta to "Hardware IN", and feed that through the monitor board directly, but now the 'monitor' button in Cubase has a use. icon_smile.gif

EDIT: Even singing or playing into a microphone is 0 latency. 0 milliseconds... I would live with 5,10 or even 20, but wow..

Post Thu Apr 13, 2006 3:02 pm 
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