this is my first post and I am pretty new to Pure Data.

I am trying to make a sample based synth - The initial sample needs to play from the begining, arrive at a certain point and then contionusly loop until the key is released. I have successful done this with tabplay as it has an outlet that is triggered when the tabplay is finished, however I cannot pitch with tablay so I must use tabread/tabread4. However using the phasor~ object I can only loop a specific section and using line~ I cannot loop. What I need to do is have somethign like line or vline play the file until sample (x) is reached, when (x) is reached the file must loop between (x) and (y - another sample point).

Please let me know if anyone knows how to do this

Thank You
Zack

[phasor~ 0.5]
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[*~ 88200]
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[tabread4~ array1]

One awkward thing is that you can't turn [phasor~] off, however this is easily solved using [switch~] You just need to put the [switch~] in the patch without connecting it to anything. Sending it a 0 will turn all the DSP objects in the patch off (including the [phasor~]) while sending it a 1 will turn them all on. (Watch out--it's off by default).

Send a 0 to the right inlet of [phasor~] if you want to reset the phase, ie. when you are turning it 'on'.

thanks for your help and advice!

I will try what you said, however would there be a way to start the playback with vline~ or line~ and then once it has reached a certain point start looping with phasor from that point? so that when I press a key the sample starts (say it goes from 0 to 500 with vline or line) at point 500 I would like it to start looping from 500 to 1000 and continiously loop until the key is released. Could I achieve this using phasor and switch or do you recommend another method?

B13 should do what you want if you delete "copy 2"..... and then use maybe a [metro] and some logic to control the "read point" and the "chunk size" ...... (read point = start, chunk size = length).
There is a lot of hidden help in the doc folder!
David.