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Re: A Couple of Midi Tempo and TimeSig Questions
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Re: A Couple of Midi Tempo and TimeSig Questions


  • Subject: Re: A Couple of Midi Tempo and TimeSig Questions
  • From: William Stewart <email@hidden>
  • Date: Fri, 16 Apr 2004 18:16:35 -0700

All the tempo events are put into a single tempo track... The Music
Sequence API provides an API to get the Tempo Track (and that's the
only track you can add tempo events into)

Bill

On 16/04/2004, at 4:30 AM, Peter Zegelin wrote:

> On Thursday, April 15, 2004, at 05:07 AM, William Stewart wrote:
>
>>> Hi,
>>>
>>> When Core Audio builds its special Tempo track does it only look for
>>> Tempo and TimeSignature events in track 1 of the Midi file? The
>>> reason
>>> I ask is that I've only ever read that Tempo and TimeSig events are
>>> *supposed* to be in track 1 but not that they *must* be in track 1.
>>> For cross platform reasons I'm generating my own list of these events
>>> and want to make sure I'm doing the same thing as Core Audio.
>>
>> Any tempo event in the file is added to the sequence.
>>
> Ok - another quick question relating to this. What does Core Audio do
> if there are two or more tempo events on different tracks with the
> same starting time? If they were on the same track I imagine the last
> one read from the file would take precedence but what about different
> tracks? It looks like it could go several different ways depending on
> the algorithm used.
>
>
> thanks!
>
> Peter
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References: 
 >Re: A Couple of Midi Tempo and TimeSig Questions (From: Peter Zegelin <email@hidden>)

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