Auria

Auria is a musical interface, time-scrubbing phase vocoder, and multieffects processor.

Auria is written C/C++ using OpenGL, RTAudio, Soundpipe, and Sporth.

Auria is built to explore the three ways musicians interface with computers:

• Peripherals: The core interface of Auria is the F310 Logitech Gamepad, a robust, low-cost controller.

• Code: Auria is built on top of the Sporth audio programming language, which allows the user to create and tweak any sound they'd like. Sporth code can be recompiled on-the-fly, allowing for seamless experimentation of ideas.

• Live input: Using JACK audio, live input (vocals, guitars, and ukuleles) can processed through Auria.

Compilation

Auria needs GLUT/OpenGL, Soundpipe, and Sporth.

After you have met these dependencies, simply run 'make' in the top level directory.

Running a trivial example

To try out Auria, run this command:

./auria space.sp

Hit "A" (the green button), and move around with the left joystick. When you move, you will create a blue path. Up/Down on the right joystick will cause.

Hitting "A" again will go into "freeze" mode. Use the up/down of the joystick to navigate through the path you drew and scrub through time.

Running a less trivial example

Run the file "ambient.sp" to see a more compositional patch:

./auria ambient.sp

In this instance, there is no joystick control, but there is live input.

Here are the controls:

'A': Toggles between freeze mode and Sporth mode.

'B': fade in/out

'X': Toggles duplex mode. Enable this in Sporth mode to get Sporth code to run in Freeze mode.

'Left Button': triggers an FM drone.

'Left Joystick': When duplex mode ('X') is disabled, you can scrub through audio in Freeze mode.