Early MIDI -ACID Product Family - MAGIX Community Forums Archive

Subject:Early MIDI Posted by: federaljazz Date:1/4/2005 3:54:41 PM Sorry if this has already been addressed; I've honestly searched the forums and not been able to turn up a relevant problem. A simple quarter-note midi sequence that played fine in AP4 simply causes AP5 to do all sorts of evil things...depending on time of day, it will play back on my Roland RS-70 a half second earlier than the storyboard in AP5 or play back with an entirely different rhythm or tempo. Working with timecode has no effect, and these simple sequences ran fine in AP4 without any timecode. Any ideas on how to correct this problem?
Subject:RE: Early MIDI Reply by: pwppch Date:1/4/2005 4:40:12 PM Please answer the following questions: What is your audio interface? What is your MIDI interface? What driver model are you using with your audio card? ASIO? Wave Classic? What is your buffer setting in ACID? Peter
Subject:RE: Early MIDI Reply by: federaljazz Date:1/4/2005 5:58:22 PM Audio interface: Input: Intel 82801BA/BAM AC'97 Output: C-Media CMI8738/C3DX PCI MIDI Interface: Intel 82801BA/BAM USB Controller Driver: Input: 5.1.2535.0 Output: 5.12.1.639 Using Windows Classic Wave Driver Buffer settings: Playback buferring - .30 Recording latency - automatic 8 audio buffers at size 1024 Interpolate: no Pre-roll: no (these are just the last settings I experimented with) While on this topic...my audio record takes also seems to take on a random offset with every individual take. Perhaps this is a related problem?
Subject:RE: Early MIDI Reply by: pwppch Date:1/5/2005 10:21:46 AM You don't specify the manutacture of the MIDI interface. I am not familar with the Intel USB interface. What is the name of the MIDI device you select and enable in the ACID MIDI prefs page? Try these setting : playback buffering to .10 Audio buffers : 4 Buffer size : MME Priority : Time Critical. Did you check the interpolate position option or was it checked automatically? If you set it, uncheck it as it is only needed for some VERY old hardware devices or devices that tell us they need this. The record latency is related. I have never use the audio hardware you specifiy, so I can't even guess why there is a problem. The typical reasons for recording latency is that the drivers are asynchronous and therefore can cause huge latencies. The typical reason for this is that the hardware does not support the sample rate you are working with. One thing to try here is to switch to the DirectSound Surround Mapper. The best solution is to find ASIO drivers for your hardware. I believe C-Media has ASIO drivers, but I am not sure. Peter

Subject:Early MIDI

Posted by: federaljazz

Date:1/4/2005 3:54:41 PM

Sorry if this has already been addressed; I've honestly searched the forums and not been able to turn up a relevant problem.

A simple quarter-note midi sequence that played fine in AP4 simply causes AP5 to do all sorts of evil things...depending on time of day, it will play back on my Roland RS-70 a half second earlier than the storyboard in AP5 or play back with an entirely different rhythm or tempo. Working with timecode has no effect, and these simple sequences ran fine in AP4 without any timecode. Any ideas on how to correct this problem?

Subject:RE: Early MIDI

Reply by: pwppch

Date:1/4/2005 4:40:12 PM

Please answer the following questions:

What is your audio interface?

What is your MIDI interface?

What driver model are you using with your audio card? ASIO? Wave Classic?

What is your buffer setting in ACID?

Peter

Subject:RE: Early MIDI

Reply by: federaljazz

Date:1/4/2005 5:58:22 PM

Audio interface:
Input: Intel 82801BA/BAM AC'97
Output: C-Media CMI8738/C3DX PCI

MIDI Interface: Intel 82801BA/BAM USB Controller

Driver:
Input: 5.1.2535.0
Output: 5.12.1.639

Using Windows Classic Wave Driver

Buffer settings: Playback buferring - .30
Recording latency - automatic
8 audio buffers at size 1024
Interpolate: no
Pre-roll: no
(these are just the last settings I experimented with)

While on this topic...my audio record takes also seems to take on a random offset with every individual take. Perhaps this is a related problem?

Subject:RE: Early MIDI

Reply by: pwppch

Date:1/5/2005 10:21:46 AM

You don't specify the manutacture of the MIDI interface. I am not familar with the Intel USB interface. What is the name of the MIDI device you select and enable in the ACID MIDI prefs page?

Try these setting :
playback buffering to .10
Audio buffers : 4
Buffer size : MME
Priority : Time Critical.

Did you check the interpolate position option or was it checked automatically? If you set it, uncheck it as it is only needed for some VERY old hardware devices or devices that tell us they need this.

The record latency is related. I have never use the audio hardware you specifiy, so I can't even guess why there is a problem. The typical reasons for recording latency is that the drivers are asynchronous and therefore can cause huge latencies. The typical reason for this is that the hardware does not support the sample rate you are working with.

One thing to try here is to switch to the DirectSound Surround Mapper. The best solution is to find ASIO drivers for your hardware. I believe C-Media has ASIO drivers, but I am not sure.

Peter