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Re: CallHostTransportState doesn't return to stopped state
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Re: CallHostTransportState doesn't return to stopped state


  • Subject: Re: CallHostTransportState doesn't return to stopped state
  • From: Mark Pauley <email@hidden>
  • Date: Thu, 23 Aug 2007 13:51:50 -0700

From my experience, logic keeps playing a tail after the transport stops. Maybe this is just a nicety to keep you from hearing a loud pop every time you hit stop.


_Mark

On Aug 23, 2007, at 11:50 AM, William Stewart wrote:

Yes - they are completely independent.

On 22/08/2007, at 4:36 PM, Eric Eizenman wrote:

Paul, It sounds like you're looking for the wrong indication. Knowing whether the transport is not playing wouldn't suggest that your render call is not being invoked. Is that what you were saying Bill ?

------------------------------------------------------------------
Eric Eizenman
BIAS Inc., Audio Software Development
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On Aug 22, 2007, at 3:04 PM, William Stewart wrote:

is playing should be set to false when the transport is not moving. that is how you can distinguish between an AU that is being called regardless of whether the host is playing its time line or not..

Sounds like a bug in Logic?


Bill

On 21/08/2007, at 3:33 PM, Paul Tapper wrote:

Hi,

I'm trying to check whether my AudioUnit is having audio played through it or not by calling CallHostTransportState and checking the isPlaying that it returns.

When I test in Logic Express 7, the plug starts off by reporting that the audio is stopped (isPlaying is false), and then when I play audio it reports isPlaying as true, which is fine. The problem comes when I press stop, and the audio stops playing, the plug still gets isPlaying true - I would have thought it should return to false. Am I just using it wrong?

I also find that currentSample just keeps returning 0.0 whether the audio is stopped or playing.

I'm obviously doing something wrong. Please can someone help. Or maybe this is the recommended way of testing for whether the audio is playing?

Thanks

Paul

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References: 
 >CallHostTransportState doesn't return to stopped state (From: "Paul Tapper" <email@hidden>)
 >Re: CallHostTransportState doesn't return to stopped state (From: William Stewart <email@hidden>)
 >Re: CallHostTransportState doesn't return to stopped state (From: Eric Eizenman <email@hidden>)
 >Re: CallHostTransportState doesn't return to stopped state (From: William Stewart <email@hidden>)

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