Support

If you have a problem or need to report a bug please email : support@dsprobotics.com

There are 3 sections to this support area:

DOWNLOADS: access to product manuals, support files and drivers

HELP & INFORMATION: tutorials and example files for learning or finding pre-made modules for your projects

USER FORUMS: meet with other users and exchange ideas, you can also get help and assistance here

PDC - Predicted Delay Compensation

DSP related issues, mathematics, processing and techniques

PDC - Predicted Delay Compensation

Postby Rocko » Sun Jul 24, 2016 1:12 pm

Hi,

I'm wondering about the 'PDC' issue. Not sure I understand it correctly.

Is this description correct:
Ideally, all channels should be playing at the same exact timing, for coherency.
Since each channel might have different processing, and some of the processing might introduce latency, there is no way for the host (DAW) to know how to set the compensation.
For this reason, each processor, 'reveals' it internal latency to host.

Example:
If we are dealing with a 'look ahead limiter' with a latency of 24 samples, its PDC should be set to '24'.
The host will send information to the channel which runs the limiter 24 samples ahead of other channels, to keep coherency.

Is this correct info?

Appreciated !
Rocko
 
Posts: 184
Joined: Tue May 15, 2012 12:42 pm

Re: PDC - Predicted Delay Compensation

Postby adamszabo » Sun Jul 24, 2016 1:20 pm

Its called Plugin Delay Compensation. When a plugin sends its latency to the host, the host can use PDC to compensate for the latency. If you use PDC then all the other channels will be delayed by the latency amount, so its not your compressor with 24 samples latency that gets delayed, it already is, it delays all other channels so the sound happens at the same time.
adamszabo
 
Posts: 556
Joined: Sun Jul 11, 2010 7:21 am

Re: PDC - Predicted Delay Compensation

Postby Rocko » Sun Jul 24, 2016 5:12 pm

Hi,

Thanks for the explanation. Appreciated.

So, how can I set PDC in Flowstone? Say I want to use flowstone to design a limiter... Is there a way for me to set PDC?
Rocko
 
Posts: 184
Joined: Tue May 15, 2012 12:42 pm

Re: PDC - Predicted Delay Compensation

Postby adamszabo » Sun Jul 24, 2016 6:51 pm

That I dont know unfortunately. I think the vst will do that automatically for the host.
adamszabo
 
Posts: 556
Joined: Sun Jul 11, 2010 7:21 am

Re: PDC - Predicted Delay Compensation

Postby Nubeat7 » Sun Jul 24, 2016 6:55 pm

you need to include the delay compensation primitive in your project, there you can set the delay
User avatar
Nubeat7
 
Posts: 1346
Joined: Sat Apr 14, 2012 9:59 am
Location: Vienna


Return to DSP

Who is online

Users browsing this forum: No registered users and 6 guests

cron