Teensy Audio Library
A toolkit for building streaming audio projects, featuring Polyphonic Playback, Recording, Synthesis, Analysis, Effects, Filtering, Mixing, Multiple Simultaneous Inputs & Outputs, and Flexible Internal Signal Routing.All audio is CD quality (16 bits, 44.1 kHz) and streams automatically as your Arduino Sketch Runs
Tutorial
Tutorial examples from this video are available in Arduino, from File > Examples > Audio > Tutorial.
Design Tool
Audio System Design Tool
Use this design tool to draw your audio system, and then export as code to Arduino!
Download
Audio is included in the Teensyduino installerGitHub Repository (development version)
General Audio Library Usage
- Audio System Design Tool <-- Start Here
- Data Files For Examples
- Audio Connections and Memory
- Processor Usage and Interrupts
Supported Hardware
- Audio Adaptor, for 16 bit stereo input and output.
- Dual Audio Adaptors for 16 bit quad channel input and output.
- S/PDIF optical digital audio output, for 16 bit stereo sound.
- Teensy 3.6, Teensy 3.5, Teensy 3.2 & 3.1 built-in DAC, for 12 bit mono output.
- Teensy 3.6 and Teensy 3.5 built-in DACs, for 12 bit stereo output.
- Teensy 3.6, Teensy 3.5, Teensy 3.2 & 3.1 & 3.0 ADC, for 13 bit mono input.
- Teensy 3.6, Teensy 3.5, Teensy 3.2 & 3.1 ADCs, for 13 bit stereo input.
- Teensy 3.6, Teensy 3.5, Teensy 3.2 & 3.1 & 3.0 PWM, for approx 9-10 bit mono output.
- USB Audio, for bi-directional stereo streaming to/from a PC.
Library Development & Technical Details
- Development Roadmap
- Creating New Audio Objects
- Naming Conventions for Audio Library Objects
- Timing and Scheduling Details
- Optimizations with Cortex-M4 DSP Instructions