Hi,
last week I asked about the meaning of ppq - thanks a lot so far for
all the answers! Now I have a related question, namely about tempo: If
I set ppq to 1, then tempo should be the duration of a quarter note in
microseconds, right?
But there seems to be a factor of about 100 between this and
I don't want to spoil the party, but PPQ is indeed parts per quarter note
and is used to specify the desired resoluting for the sequencer timing grid.
Let me explain:
If the sequencer is set to eg. 4 PPQ this means that a quarter note
devided in 4 parts, actually being 16th notes in 4/4 meter.
Paul Davis wrote:
> "ppq" stands for "parts per quarter".
Rather boringly I was under the impression it was "pulses per quarter note"
and that's why you sometimes see it as PPQN as well as PPQ.
Sorry.
R
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_
>>"ppq" stands for "parts per quarter". as the header file suggests
>>without much explanation, its length of a quarter note expressed in
>>clock ticks. if the meter is 4/4 and the tempo is 120bpm, then a
>>quarter note lasts 0.5 seconds. if the clock used for timing ticks 100
>>times per second,
>>I'm just starting to write my first alsa-lib midi applications. I'm
>>wondering what the acronym ppq stands for and what it means (especially
>>in relation to tempo). Unfortunately, I didn't find any docu on the
>>topic of tempo.
> int ppq; /* time resolution, ticks/quarter */
[ ...
Paul Davis wrote:
>>>I'm just starting to write my first alsa-lib midi applications. I'm
>>>wondering what the acronym ppq stands for and what it means (especially
>>>in relation to tempo). Unfortunately, I didn't find any docu on the
>>>topic of tempo.
>
>> int ppq; /* time resolution,
Gerald Grabner wrote:
>Hi,
>
>I'm just starting to write my first alsa-lib midi applications. I'm
>wondering what the acronym ppq stands for and what it means (especially
>in relation to tempo). Unfortunately, I didn't find any docu on the
>topic of tempo.
from :
/* queue tempo */
struct snd
Hi,
I'm just starting to write my first alsa-lib midi applications. I'm
wondering what the acronym ppq stands for and what it means (especially
in relation to tempo). Unfortunately, I didn't find any docu on the
topic of tempo.
Thanks for your help,
Gerald
__
