Hi, im fairly new to pd and have run into some issues that I can't find any answers to online. Basically I am creating a program that takes the output of a python script in the form of a number (1-5) and adjusts the sound dimensions (volume, pitch, speaker channel) accordingly. The program loops a sound file continuously when started and should not require any interaction with pure data from the user.

I've currently hit a brick wall however and have two main issues with my program: firstly when the bangs that change the volume are received and the volume changes, the looped file restarts itself before finishing resulting in a skip. The looped file should continuously loop uninterrupted.

The 2nd issue is I can't figure out how to switch speaker channel via a conditional statement, i.e. the output of [readsf~] can't be routed through a [moses], a [moses] can't be placed between the [dac~] and [*~], a [moses] can't be placed between the [readsf~] and [open file.wav] either as the loop doesn't play. Again I would need the channel to switch without interrupting or restarting the looped file.

Hopefully you understand what I am trying to accomplish, let me know if you need more information.
Perhaps I am misunderstanding Pure Data's data flow, any pointers or tips would be greatly appreciated.
Many thanks

@shivellebits It is probably easier to solve if you upload your patch.
You could use [== x] conditional object directly to the right inlets of [*~] for each output.
If [readsf~] is restarting when a volume level is received it must be receiving a "1" at the same time.... maybe look closer at the python code?
David.

Ahh I didn't realise [== x] could be used on [*~], I'll give that a whirl and upload my patch tomorrow if i'm still struggling. As for the [readsf~], I am indeed sending it a '1' in the format of [open file.wav, 1] but I was under the impression you need to give it a '1' for the file to play, or is that not the case?

Thank you for the speedy reply and help David!

@shivellebits All the logical operators..... [==] [>=] [<=] etc. output 1 or 0 ...... true or false...... which will be "on" or "off" for [ *~] so use one that does what you need.
Actually you could use [moses] but you would need to follow it with [0( and [1( messages to keep the volume in range.
The right inlet of [ *~] will take control messages. Maybe in some versions of Pd you will need to tell it to do so by giving it an argument like [ *~ 0.5]..... unsure.
Yes, [readsf~] needs a 1 or a [start( message to start, but if it is re-starting when you send a volume change then it must be getting another 1 when you send the volume change, so I think that problem must be in the python code.
David.

Hi David, thanks for the help its been great. I've now got everything working as it should apart from the sound loop which still restarts itself whenever the number received by [netreceive] changes. Its not the Python code as I'm testing it just by sliding the number object in pd and I don't believe [readsf] is receiving a 1 from anywhere else. This is my patch so far:
SoundController.pd

Cheers, Dan

@shivellebits I changed from [moses] to [select]. No good reason for that, but I added a [select 1 2 3 4 5 6] with bangs attached for you to see what is incoming from Python.
sofar.pd
I cannot see why either [readsf~] would restart when a 4 or a 5 is incoming.
I also added a start to play alt.wav......... which could be wrong.
David.

Ok I've finally cracked it and the whole program is working now! The [select] method looks much cleaner and I will probably switch to it at some point, for the time being though my program is using the [moses] waterfall. If anyone is interested here is my patch: soundController2.pd

Again thank you for your time david its been a big help.
Dan.