Re: Calculating latencies
Re: Calculating latencies
- Subject: Re: Calculating latencies
- From: Jeff Moore <email@hidden>
- Date: Thu, 1 Nov 2007 16:44:15 -0700
Thanks Matt!
I stand corrected. That would imply that perhaps the M-Audio driver has similar issues as our FireWire Audio driver did. It might also imply that there are some issues with how the measurements are being done.
On Nov 1, 2007, at 4:36 PM, Matthew Xavier Mora wrote: At 4:11 PM -0700 11/1/07, Jeff Moore wrote: On Nov 1, 2007, at 3:03 PM, email@hidden wrote:
Then I tested with a M-Audio Firewire 410 which gave a calculated latency of 1362 (584 for input + 778 for output) but repeated tests showed latencies from 1251 to 1259, again a variation of 10 samples but 100 samples off the money.
While the same issues the built-in hardware raised apply here, there is the added complication of a bug in the our FireWire Audio driver where it would not produce consistent throughput latency figures from test run to test run. This bug has been fixed in Leopard.
The M-Audio FireWire 410 uses its own driver.
--
Jeff Moore
Core Audio
Apple
|
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden