Changing Latency on the CoreAudio panel

[stoogee]

I've just bought and installed BFD.

I can't adjust the buffer size, it seems fixed at 512, and i'm getting a lot of latency.

Why is is fixed?

SG

[max cooper]

If PTLE is open, the buffer size setting on the Core Audio Manager will be greyed out. You have to set the buffer size from the pull-down menu (Setups/Playback Engine...).

If you're using BFD All, I suggest tracking midi with one pair of ambient mics and maybe the kick and snare close mics on, and the rest inactive (select the track name, then "File/make selected tracks inactive"). All those channels can really drag the CPU down. Once you write the midi part, you can activate all the individual channels.

[stoogee]

Thanks.

But what I mean, is when using BFD standalone, trying to change the buffer size in the CA panel. Its fixed at 512, and is quite slow latency wise.

SG

[stoogee]

bump..

question is, how can i change the buffer size in the CoreAudio panel, it seems fixed, and there are no other options.

SG

[mamacita]

Try closing the core audio panel and any programs that are using core audio, then open the core audio manager from the Digidesign folder in your applications folder. You should be able to adjust the buffer settings from there, this worked for me when I was having the same problem with Garageband.

Mike

[Digi Engineering]

Hi there,

Here's how this works:

1. If the CoreAudio Manager is open and there are zero clients attached, then you can change the buffer-size in the CoreAudio Manager's popup.

2. If there is exactly one client app attached, then you can only change the buffer-size from that client app's control panel (if it has one).

3. If there are more than one client apps attached, then the buffer-size is fixed and cannot be changed by any app.

This design was chosen because we encountered some client apps that didn't react well to having the buffer-size changed out from underneath them.

Hope this helps,
-Ted

DAE Group
Digidesign Engineering

[Carl Z]

I always wanted to know that. Makes sense.

I find the core audio driver to be pretty solid.

I must be that there are more than one app using the driver in this case.

C

[ronev]

Where is the CA panel? Is there a way to direct the audio from a softsynth to the Digi002R hardware using this panel?

Thanks!

PowerBook G4 1.33mhz, OSX 10.3.3, PT LE 6.4 002R

[stoogee]

I still get a lot of pops when using anything other than ProTools, even with a 512 buffer size it pops about once every minute.. will this be fixed?

SG