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<p class="MsoNormal"><span style="font-size:12.0pt">Hi Fede and IOhannes,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Thanks so much for the quick responses. If I understand you correctly, Fede, I should *<b>not</b>* have DSP switched on at creation in the subprocess, but first set its audio API to portaudio, then switch
DSP on? I tried that, and still get no sound output.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Also, when (in the subprocess) I select ‘portaudio’ for the API, the Audio Settings dialog pops open with my audio interface showing as the input and output devices – shouldn’t these be ‘virtual’ devices that
only connect in-from and out-to the parent process?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">IOhannes: I’ve made sure to have dsp switched on in both the parent and sub-process. Could you tell me what your audio API and Audio Settings show for the sub-process?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">This is Pd 0.53.1, I should note.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Phil<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Pd-list <pd-list-bounces@lists.iem.at> on behalf of Fede Cámara Halac <camarafede@gmail.com><br>
<b>Date: </b>Saturday, January 28, 2023 at 1:41 PM<br>
<b>To: </b>pd-list@lists.iem.at <pd-list@lists.iem.at><br>
<b>Subject: </b>Re: [PD] [pd~] subprocess: unknown audio API specified<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Phil, <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">I've had that issue before. You might need to re-select your audio device from the Media menu before turning DSP on.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">I believe that in macos it would be Media > portaudio, unless you are using jack.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">I am not sure why this error happens, but I guess it relates to the pd~ subprocess changing the saved settings.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hope this helps,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Fede<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">On Sat, Jan 28, 2023 at 10:30 PM Phil Stone <</span><a href="mailto:pksmusic@gmail.com"><span style="font-size:11.0pt">pksmusic@gmail.com</span></a><span style="font-size:11.0pt">> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">I see this same behavior with the pd~-help patch (‘unknown audio API specified’ message, and no audio output), so that rules out my synthesizer’s
contribution.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Could somebody please verify that they can get audio output from the subprocess in the pd~-help.pd patch?</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">I’m on a M1 Mac, if that’s relevant.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Phil</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Phil Stone <</span><a href="mailto:pksmusic@gmail.com" target="_blank"><span style="font-size:12.0pt">pksmusic@gmail.com</span></a><span style="font-size:12.0pt;color:black">><br>
<b>Date: </b>Saturday, January 28, 2023 at 10:06 AM<br>
<b>To: </b></span><a href="mailto:pd-list@lists.iem.at" target="_blank"><span style="font-size:12.0pt">pd-list@lists.iem.at</span></a><span style="font-size:12.0pt;color:black"> <</span><a href="mailto:pd-list@lists.iem.at" target="_blank"><span style="font-size:12.0pt">pd-list@lists.iem.at</span></a><span style="font-size:12.0pt;color:black">><br>
<b>Subject: </b>[pd~] subprocess: unknown audio API specified</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Hello all,</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">(Further adventures with [pd~]): I have my ‘polywavesynth’ synthesizer working with [pd~]; well, except that…no sound comes out!</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">- The message ‘unknown audio API specified’ is displayed in the subprocess pd window.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">- I have the two audio outputs of the subprocess wired to a 2 channel [dac~], and there are no audio inputs to the subprocess.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">- The parent process is using PortAudio, and the subprocess appears to (correctly?) have no audio API selected.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">- The subprocess Audio Settings show that the input device is unchecked and is called ‘input device 1’;</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">- The corresponding output device is checked and says ‘(same as input device)’.</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Am I doing something wrong?</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Thanks,</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Phil Stone</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Davis, California USA</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">_______________________________________________<br>
</span><a href="mailto:Pd-list@lists.iem.at" target="_blank"><span style="font-size:11.0pt">Pd-list@lists.iem.at</span></a><span style="font-size:11.0pt"> mailing list<br>
UNSUBSCRIBE and account-management -> </span><a href="https://lists.puredata.info/listinfo/pd-list" target="_blank"><span style="font-size:11.0pt">https://lists.puredata.info/listinfo/pd-list</span></a><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<br>
-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Dr. Fede Camara Halac<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Composer / Programmer / Sound Artist<o:p></o:p></span></p>
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<p class="MsoNormal"><a href="https://fdch.ar" target="_blank"><span style="font-size:11.0pt">fdch.ar</span></a><span style="font-size:11.0pt"><o:p></o:p></span></p>
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