Ben Carey

I've been scratching my head over this for a while now. I'm interested in using the poly~ object to create voice allocation for the playing back of samples from a buffer. I know that I am not using poly~'s full capabilities in terms of midi messages (velocity, note numbers etc) however I am stuck on how to implement the simple voice allocation function using the note $1 message (see attached patch below).

My problem might in part lie in the use of the target 0 command to stop all instances playing... as I stop the line object I also send a message to the thispoly~ object to free all voices... however now it seems that the problem is right from the beginning.

Am I not understanding something here? I have experimented with using a counter to change the instance manually using target each time I send a bang to play however this hasn't seemed to work either. I'm very confused!

Thanks in advance for any help or explanations you can give me..

understanding-poly

As ever, the tutorials are your friend. In your specific case, MSP tutorial 21 should show you the way - the sample tutorial uses an oscillator, but the material described starting with the section "The poly~ object" will tell you what you need to know - in your case you'd replace the oscillator with a play~ object and some logic to calculate the playback rate for a given pitch, but using the message "mute 0, 1" and mute 0, 1" messages and the "note" message to the poly~ object will do what you need.

Thanks Gregory... I'd been going through that very tutorial but seemed to have missed something. After starting the patch again from scratch I think I've worked it out now using the mute messagez as you suggested... thanks for the help!

http://www.youtube.com/watch?v=fn98BPNZ7rQ&feature=channel_page

maybe very simple , but maybe can help you !

maybe very simple , but maybe can  help you !


I have experimented with using a counter to change the instance manually using target each time I send a bang to play however this hasn't seemed to work either. I'm very confused!

this is what i do on a regular basis, because i hate the automatic stuff.

try my abstractions as one working example.

110.alloc requires an argument for number of voices, (up to 32):

alloc-slave can be hooked up to alloc - or be given

voices numbers from any other source - to send next 

emeidos wrote on Sun, 07 June 2009 18:50
I have experimented with using a counter to change the instance manually using target each time I send a bang to play however this hasn't seemed to work either. I'm very confused!

this is what i do on a regular basis, because i hate the automatic stuff. 

110.alloc requires an argument for number of voices, (up to 32):
[110.alloc 16]

alloc-slave can be hooked up to alloc - or be given
voices numbers from any other source - to send next 
input to a specific voice.

Thanks Roman... these abstractions are really useful I'll definitely make use of them... will check out that video too ongo.. cheers!

for things like "note-off" - in case thats how you

build your synth - you might want to use multiple 

the principle of voice rotation has that limit built in.

for things like "note-off" - in case thats how you
build your synth - you might want to use multiple 
alloc.

the principle of voice rotation has that limit built in. 

understanding poly~