Re: AU - does Latency imply equal TailTime?
Re: AU - does Latency imply equal TailTime?
- Subject: Re: AU - does Latency imply equal TailTime?
- From: Bill Stewart <email@hidden>
- Date: Tue, 28 Jan 2003 15:05:27 -0800
On Tuesday, January 28, 2003, at 12:13 PM, Marc Poirier wrote:
Does a value for the kAudioUnitProperty_Latency property imply that, at
the end of the input signal, there will still be output for an equal
amount of time? Or is an Audio Unit expected to return that same value
for the kAudioUnitProperty_TailTime property in such a case? To me,
latency means latency all the way through: it starts late and it ends
late. And then if there is an additional tail on top of the already
expected delay (from the latency), then that additional value would be
returned from the kAudioUnitProperty_TailTime property.
That's correct... the latency is any latency that is incurred by
running a sample through your DSP
Tail is how long it takes for an individual sample to completely
dissappear from the output (think of a delay or a reverb) - it has
nothing to do with latency and both properties can be and often are,
independent of each other. (Thus in the case of a simple "digital
delay" for instance you could have zero latency but a tail of 10
seconds)
Bill
--
mailto:email@hidden
tel: +1 408 974 4056
________________________________________________________________________
__
"Much human ingenuity has gone into finding the ultimate Before.
The current state of knowledge can be summarized thus:
In the beginning, there was nothing, which exploded" - Terry Pratchett
________________________________________________________________________
__
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.