Alex_k

I'm trying to build a patch that measures the amount of delay in an audio chain.

I tried a simple test but something is not working as I would expect. When I try to measure the amount of delay with timer or clocker, I always get different values.

measuring-delay

record it into a buffer and check it in cool edit or something

I would like to do it in MAX/Msp, because later I'm going to build a patch that compensates the delay in my audio chain.

Hey, thanks for the idea of using a buffer.

Now I'm wondering if it's possible to analize it with index (or something else) to determine the exact delay between the start point and the click.

Hey, thanks for the idea of using a buffer. 

You might want to try recording the pre-delay and post-delay click to a buffer then measure the distance in samples between them. You could step through the buffer values using peak~

> I'm trying to build a patch that measures the amount of delay in an

> I tried a simple test but something is not working as I would expect.

> When I try to measure the amount of delay with timer or clocker, I

I always get the same value. My performance settings are overdrive on, 

Alessandro Camnasio schrieb:
> I'm trying to build a patch that measures the amount of delay in an
> audio chain.
>
> I tried a simple test but something is not working as I would expect.
> When I try to measure the amount of delay with timer or clocker, I
> always get different values.

I always get the same value. My performance settings are overdrive on, 
scheduler in audio interrupt on...

-- 
Stefan Tiedje------------x-------
--_____-----------|--------------
--(_|_ ----|-----|-----()-------
-- _|_)----|-----()--------------
----------()--------www.ccmix.com


> How different? more than a millisecond?

I get result from 5.8 to 10.7 milliseconds.

> I always get the same value. My performance settings are overdrive on, 

Ah, thanks! I switched on the scheduler and now the patch works as expected.

>
> I always get the same value. My performance settings are overdrive on, 
> scheduler in audio interrupt on...

measuring delay