[PD] MIDIFILE read Tempo

[Dan Wilcox]

mrpeach = my favorite externals

On Sep 6, 2013, at 2:54 AM, pd-list-request at iem.at wrote:

> From: Martin Peach <martin.peach at sympatico.ca>
> Subject: Re: [PD] MIDIFILE read Tempo
> Date: September 5, 2013 12:36:41 PM EDT
> To: Maciej Sledziecki <maciej at satelita.de>
> Cc: pd-list at iem.at
> 
> 
> On 2013-09-05 09:29, Martin Peach wrote:
>> On 2013-09-05 07:04, Maciej Sledziecki wrote:
>>> Hello,
>>> 
>>> ist there any way to read the tempo information contained in a midi file?
>>> Or do I really have to set up a metro for mrpeach/midifile everytime ?
>> 
>> 
>> It's been a while since I worked on that but I think you can dump the
>> info and use that to set up a metro. I could probably add a message to
>> get it to play automatically.
>> 
> 
> If you bang the [midifile] after opening the file, the right outlet will emit ticks_per_quarternote and microsec_per_quarternote messages.
> 
> So the millisecond rate for the [metro] would be = (microsec_per_quarternote/ticks_per_quarternote)/1000
> 
> See attached patch.
> 
> Martin

--------
Dan Wilcox
@danomatika
danomatika.com
robotcowboy.com





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