Group Admins

  • Profile picture of Karim
  • Profile picture of Jean

OpenMusic

Public Group active 6 hours, 6 minutes ago

User group for OpenMusic and computer-aided composition. Visit the Forum for discussions.

om-sample for bpc

Author 4 Subscribed Users |
Profile photo of JialinLiu
JialinLiu

Hello friends,

Because of the interest in the gestural control/arrangement, I am working on the idea to reorganize the pitch and rhythm in “chord-seq” with the gesture in BPC/BPF, the function are written but it is based on the “om-sample” and “bpc”.

The method om-sample works not perfectly for the BPC class now, it will lose some points at the end of the graph, and usually the first point was repeated and sometimes the length of the points will not match the second input. (see patch)

Could you please help me to optimalize it?

Thank you very much!

Best regards,
Jialin Liu

July 13, 2018 at 08:46 #27117
Profile photo of fdsdb
fdsdb

Hi,

I don’t know if useful, and I don’t know why, but if you substitute the first BPC of every example with a BPF class it seems to correctly run.

Best

fdsdb

July 13, 2018 at 13:21 #27124
Profile photo of Francesco Vitale
Francesco Vitale

Hi all,
indeed, as Jialin pointed out, there seems to be some problems in OM with the BPC (not with the BPF) sampling. In addition to the issues already found, I noticed that using the bpc-sample function does not help either.
Best,
Francesco Vitale

July 13, 2018 at 13:33 #27125
Profile photo of JialinLiu
JialinLiu

Hi Fabio and Francesco,

Thank you for the reply!
Yes the BPF works very well. However, my imagination is to get the same distance (of route) between every two points, (and with BPF I get this same distance on the x-axis, not on the route.)
I’ll translate the curve to musical gesture. If there are bigger motion (y) in shorter time (x), then, more tones will be arranged into this shorter time (shorter distance on x-axis).

This morning I have wrote an emergency version of that “om-sample-pro”, and it could just be used for bpc. In case you need it, you can also test it.

Best,
Jialin Liu

July 13, 2018 at 14:18 #27126
Profile photo of Jean
Jean

Hi there, I have just updated the OM sources in order to fix the issues with om-sample BPC regarding number of points, etc.

In principle om-sample will sample the BPC curve so that the euclidian distance between 2 samples is always the same.

Jean

July 27, 2018 at 14:19 #27271
Profile photo of JialinLiu
JialinLiu

Hello Jean,

Thank you for the updating! That is definitely what I imagined, very kind!

Bests,
Jialin

July 29, 2018 at 05:13 #27294
Profile photo of Jean
Jean

The OM 6.14 update including this fix is now available for download.

August 28, 2018 at 11:18 #27550
Profile photo of JialinLiu
JialinLiu

Merci pour vos efforts!

Bests
Jialin

September 11, 2018 at 21:34 #27773

You must be logged in to reply to this topic.

Log in now