[PD] simultaneous read and write in tables

[Peter Plessas]

Hi,

Well i want to read first at position N, and then write into position N at 
the same time. So as i read i get the audio signal from some seconds ago, 
just like a delay.

I hope my description is not too complicated, hasn't anyone got this 
before? LiveLooping with feedbacks in tables?

regards, Peter

On Mon, 11 Jul 2005, matthew jones wrote:

> But reading from the same point you are writing to (after having written) 
> would be equivalent to just connecting it up straight with cables (ie. no 
> delay)...?
> Maybe I've got the wrong end of the stick here.  If tabwrite~ is 5 samples 
> BEHIND tabread~ then this would give you a delay of (TABLENGTH-4) samples, I 
> think.  But for a loopsampler you would not need to use a table to output the 
> CURRENT audio, only the repetitions, so there should be no issue with reading 
> the table WHEN it is being written to.  Then again if I have misunderstood 
> your problem, can you provide some more info on what you need to do?
> Cheers,
>
> Matt
>
>> Hi List,
>> 
>> I need some ideas for reading and writing to a table at the same position 
>> with audio signals.
>> I need to create a looping sampler which is based on tables, not delays.
>> So i need to write to a table with tabwrite~ and read from the exactly same 
>> position with a tabplay~, though this gives me strange behavior (weird 
>> audio, distortion, etc). So i figure it is a problem between tabwrite~ and 
>> tabplay~ accessing the same sample in the table...
>> Sadly, it has to be exactly the same, as i then feed my playback signal 
>> into the tabwrite~ again, and a minimum lag would add up with each 
>> repetition.
>> As i have tabwrite~ write 5 samples behind tabplay~, audio is fine, but 
>> it's not the same position (see above).
>> I know that xsample from Thomas Grill has some of this functionality, but 
>> it's not quite what i need.
>> 
>> Any hints?
>> 
>> regards, Peter 
>
>