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View Full Version : [solved maybe] sync problem with MIDI


fsx
11.03.2009, 05:11 AM
Hoody hoo everybody!

I tried to make something heavily synced via MIDI with my nice VIRUS RACK CLASSIC but I noticed a lot of out-of-time events, especially in arpeggiators and other timed sounds.
I am a long time MIDI user (since the ATARI ST) so I've read a lot about MIDI and stuff.

MIDI is basically a serial interface, meaning that the information is sent in row one bit after the other (so not in parallel) and this in some older machines means lots of information to process in a short time, especially when dealing with high definition sequencers.

Well I partially solved my sync troubles lowering the definition of MIDI messages from 960 to 480 ticks per quarter notes within the sequencer.

I hope this post will be useful to you all experiencing my problem.

Cheers!

Berni
11.03.2009, 06:40 PM
I'm still having sync issues with arps with the RTAS version of VC 3.0.6 in pro tools LE 8...latest version. If I use the VST version on the same computer (power mac G5/Virus TI ) with Live 6 the problem is gone.

marc
11.03.2009, 08:20 PM
Hoody hoo everybody!

I tried to make something heavily synced via MIDI with my nice VIRUS RACK CLASSIC but I noticed a lot of out-of-time events, especially in arpeggiators and other timed sounds.
I am a long time MIDI user (since the ATARI ST) so I've read a lot about MIDI and stuff.

MIDI is basically a serial interface, meaning that the information is sent in row one bit after the other (so not in parallel) and this in some older machines means lots of information to process in a short time, especially when dealing with high definition sequencers.

Well I partially solved my sync troubles lowering the definition of MIDI messages from 960 to 480 ticks per quarter notes within the sequencer.

I hope this post will be useful to you all experiencing my problem.

Cheers!

the bottleneck is usually the interface, not the synth. but in general you're right. less traffic also means a lower chance of a traffic jam...

best, marc

absynth
11.03.2009, 08:33 PM
Hoody hoo everybody!

I tried to make something heavily synced via MIDI with my nice VIRUS RACK CLASSIC but I noticed a lot of out-of-time events, especially in arpeggiators and other timed sounds.
I am a long time MIDI user (since the ATARI ST) so I've read a lot about MIDI and stuff.

MIDI is basically a serial interface, meaning that the information is sent in row one bit after the other (so not in parallel) and this in some older machines means lots of information to process in a short time, especially when dealing with high definition sequencers.

Well I partially solved my sync troubles lowering the definition of MIDI messages from 960 to 480 ticks per quarter notes within the sequencer.

I hope this post will be useful to you all experiencing my problem.

Cheers!

how exactly did you lower this? in cubase 4.5?

i´m having also sync problems with usb and cubase

anyon knows which sync options have to be checked in cubase?

absynth
12.03.2009, 07:50 PM
Fond the Problem!

I´m using a Virus Ti2 with latest os 3.0.1.06 and Cubase 4.5.1

Plugged in via USB using Virus Control Soft.

My current Project is in 88.8 Khz -->>Arpeggiator out of sync

Changed to 48 and 44.1 khz -->>Arpeggiator works perfect

Bitrates 16 Bit, 24 Bit, 32 Bit Float

fsx
14.03.2009, 05:13 AM
Fond the Problem!

I´m using a Virus Ti2 with latest os 3.0.1.06 and Cubase 4.5.1

Plugged in via USB using Virus Control Soft.

My current Project is in 88.8 Khz -->>Arpeggiator out of sync

Changed to 48 and 44.1 khz -->>Arpeggiator works perfect

Bitrates 16 Bit, 24 Bit, 32 Bit Float



I was speaking about MIDI but USB is also a serial... anyway I don't use Cubase so I am clueless on how it can be done there...