So obviously, my whole analysis seems to be wrong. And that's what seems to think, too. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. On Linux, SC with PortAudio works for some users, but not for others, e.g. Same on PulseAudio's "default" device with 32 channels. 2 input and output channels for hw:1,0. To put it simply, UGens take inputs and use them to produce sound. Have a look at SuperDirt's documentation, in particular the example superdirt_startup.scd file. The building blocks of SuperCollider are called UGens (Unit Generators). to your account, while trying to debug the PortAudio driver, I'm getting increasingly confused about the concept of input and output channels when it comes to scsynth and audio hardware. 2 or 8? For more information, see our Privacy Statement. the mixer etc. The BufFrames UGen returns, well, the number of frames in the soundfile. Have a question about this project? Same on PulseAudio's "default" device with 32 channels. In both cases on ALSA's "default" or PulseAudio's "default" device, SuperCollider won't work. As previously seen, a sine wavetable oscillator UGen (SinOsc) can be given inputs for frequency, phase offset, output multiplier and add value to output. You'll want to paste the setup code into the supercollider editor window. The PortAudio library is using the ALSA API. Besides correcting the output issues I was having with Supercollider ASIO4ALL can also dramatically improve the latency on your audio system. Learn more. We’ll occasionally send you account related emails. We use essential cookies to perform essential website functions, e.g. By clicking “Sign up for GitHub”, you agree to our terms of service and Successfully merging a pull request may close this issue. Due to the advanced nature of SuperCollider, the text assumes that you have a basic knowledge of how to work with Ardour. And then it works. privacy statement. What is a sane fallback value if the number of channels is obviously (?) You signed in with another tab or window. These virtual devices claim to have 32 channels for input and output. If you turn off PulseAudio and use ALSA directly, you can tell SC to use one of these hardware devices. (A UGen is a unit generator, i.e., something which makes sound.) Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. not on my box, an amd64 machine running Xubuntu 15.10 with its default PulseAudio. {, 0, 0.1, 0)}.play; SC with PortAudio is known to work fine on Windows, where it is SC's default audio driver. PulseAudio provides an ALSA compatability layer. What is the best way to programatically render a SuperCollider program to a file (say a wav file). We pass in just one argument, mul, which stands for “multiply.” SuperCollider will multiply the output from the PinkNoise UGen by the value of mul. The following example comes from a MacBook Pro:Server.default.options.inDevice_("Built-in Microph");Server.default.options.outDevice_("Built-in Output"); In case of a dedicated audio interface, you might need to specify a single device, e.g.Server.default.options.device_("MOTU 828"); On macOS you c… ... //this loads into a buffer the default sound that comes with SuperCollider MME : Microsoft Soundmapper - Input (device #0 with 2 ins 0 outs) MME : Microsoft Soundmapper - Output (device #4 with 0 ins 2 outs) (ASIO is an exception, which tends to show duplex devices.) After downloading and installing ASIO4ALL you will notice it has been added to the list of available audio devices when Supercollider boots. By default the server will boot to your system's default audio devices. And why? Can I specify the duration of the file (eg 30 seconds)? Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. Sign in After digging into the source of SC_PortAudio.cpp, here's an oddity I found: The audio driver sets mInputChannelCount and mOutputChannelCount to the number of channels reported back by PortAudio's Pa_GetDeviceInfo(). Googling, I found this mailing list thread, which wasn't really helpful, it only seems to say "don't worry about 128 channels, that's an artefact of ALSA's API, just default to stereo when requesting output and you'll be fine". I'm trying to use SuperCollider with the PortAudio driver on Linux.
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