I've never fully understood the "delay" parameter either..

Assuming you set the block size to 128 and working at 44.1kHz, one block is 2.9 msec long.

In this case, is setting the delay to 3msec and 4msec the same?

-- David Shimamoto

Hi Tania,

you'll find some detailed answers to both these questions in the configuring and Starting sections of the PD FLOSS Manual:

http://en.flossmanuals.net/PureData/ConfiguringPD http://en.flossmanuals.net/PureData/StartingPD

best! Derek

tania habib wrote:

...

Hello, I have two questions regarding the audio settings on PD.

When you open the audio settings in PD, normally 44.1 kHz sampling rate and a delay of 50 msec are given with various options for inputs/outputs.

My question is whether someone can tell me about this delay and what does that really mean?

Is there a way of intializing and running a patch through command line on mac osx?

Frank Barknecht wrote:

Hallo, PSPunch hat gesagt: // PSPunch wrote:

...

I've never fully understood the "delay" parameter either..

Assuming you set the block size to 128 and working at 44.1kHz, one block is 2.9 msec long.

In this case, is setting the delay to 3msec and 4msec the same?

The "delay" in the audio settings dialog is the soundcard buffer duration, it is not directly related to Pd's internal blocksize.

You can set the "delay" with the -audiobuf command line option, and the blocksize with -blocksize.

So if I set the blocksize in gjackctl, does that override Pd's "delay" or does that relate to the difficulty of getting them to sync up sometimes?

Martin