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teensy-audio
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PaulStoffregen a8a56a0e63 Update wav2sketch link 8 年前
examples Add more note & chord defs to Guitar example 8 年前
extras Len noticed a bug in binary velocity output 8 年前
gui Update wav2sketch link 8 年前
utility Typo 8 年前
.travis.yml Update Travis CI settings 8 年前
Audio.h Add very basic Karplus-Strong synthesis 8 年前
AudioControl.h Add AudioSynthWaveformSine 10 年前
README.md remove Travis CI status from readme (it's too unreliable) 8 年前
analyze_fft256.cpp Initial work on FFT256 for Teensy-LC (untested) 9 年前
analyze_fft256.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_fft1024.cpp Fix some Teensy-LC compiler errors 9 年前
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_notefreq.cpp Removed debug code, updated comments 8 年前
analyze_notefreq.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_peak.cpp Add TODO for analyze peak optimization 8 年前
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_print.cpp Change AudioAnalyzePrint name API 10 年前
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_rms.cpp Don't compile M4 code on LC (but LC still not working) 8 年前
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_tonedetect.cpp Fix more Teensy-LC compiler errors 9 年前
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 年前
control_ak4558.cpp Fixed control functions, examples, GUI elements 9 年前
control_ak4558.h Fixed control functions, examples, GUI elements 9 年前
control_cs4272.cpp Add CS4272 control (thanks William Hollender) 8 年前
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 年前
control_sgtl5000.cpp Add ability to control two SGTL5000 chips 8 年前
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 年前
control_wm8731.cpp AudioControlWM8731::inputLevel(float n) 9 年前
control_wm8731.h AudioControlWM8731::inputLevel(float n) 9 年前
data_ulaw.c Add missing open source license headers 10 年前
data_waveforms.c Remove old AudioSynthWaveform 10 年前
data_windows.c Add other window types for 1024 point FFT 10 年前
effect_bitcrusher.cpp Fix compiler warning 9 年前
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_chorus.cpp Merge pull request #166 from FrankBoesing/patch-2 8 年前
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_delay.cpp Remove unused multiplier 10 年前
effect_delay.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_delay_ext.cpp Add SPI external memory timing comment 8 年前
effect_delay_ext.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_envelope.cpp Add AudioEffectEnvelope 10 年前
effect_envelope.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_fade.cpp Add MIT license 10 年前
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_flange.cpp use AUDIO_SAMPLE_RATE_EXACT 8 年前
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_midside.cpp Don't compile M4 code on LC (but LC still not working) 8 年前
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_multiply.cpp Fix more Teensy-LC compiler errors 9 年前
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 年前
filter_biquad.cpp Don't cause a loud pop when changing biquad filter coefficients 8 年前
filter_biquad.h Do not assume AudioStream.h includes Arduino.h 8 年前
filter_fir.cpp Impove and document FIR filter 10 年前
filter_fir.h Do not assume AudioStream.h includes Arduino.h 8 年前
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file 10 年前
filter_variable.cpp Fix more Teensy-LC compiler errors 9 年前
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_adc.cpp Fix some Teensy-LC compiler errors 9 年前
input_adc.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_i2s.cpp Fix more Teensy-LC compiler errors 9 年前
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_i2s_quad.cpp More hardware defs 8 年前
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年前
keywords.txt Add Synthesis Guitar example 8 年前
library.json Use tagged source code from repo 8 年前
library.properties Increase to version 1.03 9 年前
memcpy_audio.S More hardware defs 8 年前
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 年前
mixer.cpp Fix some Teensy-LC compiler errors 9 年前
mixer.h Do not assume AudioStream.h includes Arduino.h 8 年前
multiplier.md Add a multiplier (by rheslip) 10 年前
new_objects.md change format for new_objects files 11 年前
output_dac.cpp More hardware defs 8 年前
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_i2s.cpp Be more careful when configuring MCLK 8 年前
output_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_i2s_quad.cpp Be more careful when configuring MCLK 8 年前
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_pwm.cpp Fix more Teensy-LC compiler errors 9 年前
output_pwm.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_spdif.cpp Be more careful when configuring MCLK 8 年前
output_spdif.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_memory.cpp Add status and position functions to AudioPlayMemory 10 年前
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_queue.cpp do not forget - your own addition :-) 10 年前
play_queue.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_sd_raw.cpp Do not disable all interrupts while opening RAW files 9 年前
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_sd_wav.cpp Fix stereo WAV file startup & end (first and last 3 milliseconds) 9 年前
play_sd_wav.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_serialflash_raw.cpp remove leftover debug code from AudioPlaySerialflashRaw 9 年前
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 年前
record_queue.cpp Fix harmless compiler warnings in AudioRecordQueue 10 年前
record_queue.h Do not assume AudioStream.h includes Arduino.h 8 年前
spi_interrupt.cpp Add SPI interrupt registration layer 10 年前
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_dc.cpp Add AudioSynthWaveformDc 10 年前
synth_dc.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_karplusstrong.cpp Decay resonance (loop gain) slightly in Karplus Strong 8 年前
synth_karplusstrong.h Add Synthesis Guitar example 8 年前
synth_pinknoise.cpp Clean up harmless compiler warnings 10 年前
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_simple_drum.cpp Adding SimpleDrum synthesis object to audio library. 8 年前
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 年前
synth_sine.cpp fix incorrect comment 8 年前
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_tonesweep.cpp fix tonesweep 8 年前
synth_tonesweep.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_waveform.cpp #144: Add the reverse sawtooth and sample-and-hold waveforms. 9 年前
synth_waveform.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 年前
synth_whitenoise.cpp Fix more Teensy-LC compiler errors 9 年前
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h 8 年前

README.md

Teensy Audio Library

16 bit, 44.1 kHz streaming audio library for Teensy 3.x, featuring:

  • Polyphonic Playback
  • Recording
  • Synthesis
  • Analysis
  • Effects
  • Filtering
  • Mixing
  • Multiple Simultaneous Inputs & Outputs
  • Flexible signal routing between library objects
  • Automatic Streaming while your Arduino sketch runs

Main Audio Library Page

http://www.pjrc.com/teensy/td_libs_Audio.html

Audio System Design Tool

Use this graphical tool to design your audio project. Easily browse the library’s many features, connect objects, export to Arduino code, and quickly access details for the functions each object provides for you to control it from your Arduino sketch!

http://www.pjrc.com/teensy/gui/

Supported Hardware

Audio Adaptor Board for 16 bit stereo input and output.

Inputs Outputs

Teensy 3.1 12 bit DAC

DAC Output

Teensy 3.1 or 3.0 ADC Input

ADC Input

Teensy 3.1 or 3.0 PWM Output

PWM Output