Re: Firewire Audio Driver (was Re: Calculating latencies)
Re: Firewire Audio Driver (was Re: Calculating latencies)
- Subject: Re: Firewire Audio Driver (was Re: Calculating latencies)
- From: Jeff Moore <email@hidden>
- Date: Fri, 9 Nov 2007 12:43:23 -0800
On Nov 9, 2007, at 11:10 AM, Jeremy Sagan wrote: Can you tell me when this bug was introduced (e.g. 10.4.9, 10.4.8, etc.)? I would like to know so I can inform users which system they will need to roll back to if they do not have Leopard.
Hard to say, but it may have been there from the beginning. I have a Phonic Firewire mixer that uses the default driver and it used to present clock sources and now it doesn't. When I turn it on it will not produce consistent latency unless I manually change the sample rate now. This was not the case in previous system versions to 10.4.10. I have also experienced audio discontinuities from certain inputs into multiple host applications although I have not done enough testing to determine whether this is driver or hardware related.
Sounds like somebody will be filing some bugs in BugReporter =)
On Nov 1, 2007, at 7:11 PM, Jeff Moore wrote:
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.
--
Jeff Moore
Core Audio
Apple
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