Use Asio4All With Realtek Software Application And

Right click the speaker icon in your system tray and choose playback devices.

Set the default format to 16 bit, 44100 Hz (CD Quality) Thanks to Mark Edwards comment for getting me on the right track with this.

I have been having issues with the sound quality of Supercollider on Windows for quite a while now.

I have posted to the mailing list about this in the past and really gotten nowhere.

Up until this point mostly I have just avoided writing pieces where the issue would be audible.

After replacing my ancient sound card on my studio PC with a Behringer X1204USB the problem was instantly solved.

This gave me a tip that it might be something with the low quality built in sound cards and not with the Windows build of Supercollider itself.

The Problem The following line should result in a pure low sine wave: playSinOsc.ar(30) On my systems it was accompanied by a very high pitched tone.

The scope window showed the correct output but the audio was clearly not the pure tone it should be.

The issue existed no matter the pitch but was most apparent on low sine waves.

Use Asio4All With Realtek Software Application And

ASIO According to wikipeida ASIO is: Audio Stream InputOutput (ASIO) is a computer sound card driver protocol for digital audio specified by Steinberg, providing a low-latency and high fidelity interface between a software application and a computers sound card.

Whereas Microsofts DirectSound is commonly used as an intermediary signal path for non-professional users, ASIO allows musicians and sound engineers to access external hardware directly.

According to its website ASIO4ALL is: ASIO4ALL is a hardware independent low latency ASIO driver for WDM audio devices.

It uses WDM Kernel-Streaming and sometimes even more sophisticated methods to achieve its objectives.

Besides correcting the output issues I was having with Supercollider ASIO4ALL can also dramatically improve the latency on your audio system.

Correcting The Problem After downloading and installing ASIO4ALL you will notice it has been added to the list of available audio devices when Supercollider boots.

SCAudioDriver: sample rate 44100.000000, drivers block size 64.

This will allow you edit your settings for the application if needed.

Further Work Required If you run the test sine again and hear sound then congratulations, you have set up ASIO4ALL with Supercollider.

The scope window showed the sine wave was playing but no audio would sound.

At this point you need to: Open the ASIO4ALL settings and click the wrench in the lower right-hand corner Click the plus sign next to your sound card If the output shows a red X then click to highlight the name Hover the mouse over the name to see the error Disable Exclusive To avoid the first error (In use by another application) from occurring in the future: Right click on the volume icon in your system tray Choose Playback Devices Right Click and choose properties on the device you wish to use Click the Advanced tab Uncheck Allow applications to take exclusive control of this device Hit OK Hit OK Reboot Wavetable Synth Issue On both the boxes I tested this issue was not corrected at this point.

I wanted to leave the above solution in the post because I have seen reports of people fixing their problems using that solution.

How To Use Asio4All With Realtek