Re: changing a sound signal while listening to it

[Jeremy marozeau <marozeau@xxxxxxxxx>]

Dear Dan,
You will be able to do that easily with MAX/MSP.
http://cycling74.com/
It is a great software that allows you to manipulate any type of
signal in real-time.

Jeremy
PS: you can also use the free version called pure data but it is less
user friendly.
http://puredata.info/

On Tue, Aug 10, 2010 at 12:32 PM, Daniel Bowling
<danielliubowling@xxxxxxxxx> wrote:
> Dear List,
> I am trying to create a piece of software that will allow a subject to
> change the beat frequency and amplitude of a signal while listening to it in
> real time.
> More specifically, the signal will consist of two pure tones (e.g. T1 + T2),
> and the difference between them (T2 - T1) as well as the root mean square
> amplitude will be under the control of the subject via the keyboard.
> I have tried to execute this in Matlab using a loop, the problem is that the
> sound stops and then starts again at the beginning of each loop iteration.
> Can anyone suggest a way this might be implemented on a computer? Or perhaps
> just a suitable programming language?
> Thanks,
> Dan Bowling