[PD] [pd~] subprocess: unknown audio API specified

[Phil Stone]

Hello all,

(Further adventures with [pd~]): I have my ‘polywavesynth’ synthesizer working with [pd~]; well, except that…no sound comes out!

- The message ‘unknown audio API specified’ is displayed in the subprocess pd window.
- I have the two audio outputs of the subprocess wired to a 2 channel [dac~], and there are no audio inputs to the subprocess.
- The parent process is using PortAudio, and the subprocess appears to (correctly?) have no audio API selected.
- The subprocess Audio Settings show that the input device is unchecked and is called ‘input device 1’;
- The corresponding output device is checked and says ‘(same as input device)’.

Am I doing something wrong?


Thanks,

Phil Stone
Davis, California  USA

From: Phil Stone <pksmusic at gmail.com>
Date: Friday, January 27, 2023 at 7:34 AM
To: cyrille henry <ch at chnry.net>, pd-list at lists.iem.at <pd-list at lists.iem.at>
Subject: Re: [PD] Can [pd~ start ...] *not* open a window?
Hi Cyrille (and Iohannes),

This is embarrassing; I consulted the [pd~] help file many times, but I somehow didn’t find the right placement for the -nogui flag and kept getting errors – I thought I was missing something basic. With your kind encouragement, I have found the right syntax:

[pd~ start -nogui foo.pd(

Hope this can help someone else as dumb as me.


Phil

From: Pd-list <pd-list-bounces at lists.iem.at> on behalf of cyrille henry <ch at chnry.net>
Date: Thursday, January 26, 2023 at 11:52 PM
To: pd-list at lists.iem.at <pd-list at lists.iem.at>
Subject: Re: [PD] Can [pd~ start ...] *not* open a window?


Le 27/01/2023 à 05:01, Phil Stone a écrit :
> Hi all,
>
> I hope this is a quick question: is it possible for a [pd~ start foo.pd( message to **not** open/display foo.pd’s canvas? This seems like it might be a job for ‘-nogui’, but I’ve had no luck with that (and where would it go, if it’s the answer)?
>
> Thanks for any enlightenment,
>

The answer is in pd~ help file!


"pd~ start" takes as arguments
any startup flags you wish to send the sub-process. For example, specify "-nogui" to
stop the sub-process's GUI from appearing.

cheers
Cyrille

> Phil
>
> Phil Stone
>
> Davis, CA. USA
>
>
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