Re: [Denemo-devel] (new subscriber) Any way to record from MIDI device

[Jeremiah Benham]

On Feb 13, 2010, at 1:45 PM, address@hidden (Robert M. Riches  
Jr.) wrote:

> To get the snapshot, I went to Developer -> Sourcecode and
> clicked the link "A snapshot tarball":
>
> http://git.savannah.gnu.org/cgit/denemo.git/snapshot/denemo-master.tar.gz

Thanks. I will see if I can find out what is going on here.


> Earlier, you or someone else had mentioned that a MIDI file
> must be quantized.  Does that mean the note times and lengths
> must be snapped to an appropriate fraction of a beat?

You are correct. So if a quarter note last 384 ticks but you have a  
note that comes in on tick 2 and off at tick 389. Mathematicly this is  
larger than a quater note. The quantizer would move the start time to  
tick 0 and change the time off to be 384. If the note is 200 ticks  
long it is closer to resembling an eigth note of 194 ticks. The  
quantizer adjusts for this.

> Is
> there a best-known-method for doing that from a raw MIDI file
> produced by arecordmidi?

Midi2ly does it bit it exports to lilypond. You can borrow it's code  
if you know python. My python is rusty at the moment. There may be  
others but there is not a standalone midi quantizer that I know of. It  
should be easy to write one.

> Also, the change you mentioned, commenting out one line of
> code: can that be applied manually to 0.8.12?  Could you send
> a diff or file name and line number?

Search for the function call to set_lily_name() in importmidi.c.  
Comment it out.
> Thanks,
>
> Robert Riches
> address@hidden