Hello everybody. I would like to have a signal trigger a bang.

I currently have a signal going through a [s~ ] object and returning through a [r~ ] object. I would like for a bang to be triggered when it comes back through the [r~ ] object.

I am using PD Extended. Is this possible?

Thanks!

Hi - I'm a beginner here so there's probably a better / simpler way , but this is what I came up with ...

sigbangjjl.pd

I think you have a misconception on how signal works: The signal that you are sending in [s~] is sent again and again in every DSP cycle, regardless of whether it had changed or not.

So if you want to output a bang after every DSP cycle, you can use bang~.

But if you want to output a bang after any change in the signal, you can use this patch I've made: signalToBang.pd

@andresbrocco Yes I guess I am confusing " signal" and "signal with zero amplitude" ? - I suppose it depends on exactly what the original poster wants to do?

Jim

@JJLloyd No, your solution is fine also! I think @thisguyPDs has a misconception, not you...

You're right, I did not understand how the signals worked.

I am dealing with an audio .wav file, and I thought PD would recognize when this wav file was finished. Essentially what I would like to do is count how many times the wav file is played and sent through [s~] and [r~].

@thisguyPDs [readsf~] sends a bang when the sound file has finished playing - see the helpfile for details

Further to previous reply here is an example of readsf~ being used with a counter. Its adapted from something I have been working on,

readsoundfilejjl.pd

@JJLloyd You need to use [t a b] instead of [t s b] and you need to store the file name in [symbol] and bang that again if you want it to loop ($1 does not store its value, it just passes it on) ......... iy.pd
David.

@whale-av Thanks David