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Benjamin e8783ef6b8 Add shelving filter support for biquad 8 jaren geleden
examples Add comments to USB examples 8 jaren geleden
extras Len noticed a bug in binary velocity output 8 jaren geleden
gui Add touchguitar image to Karplus Strong documentation 8 jaren geleden
utility Support more clock speeds 8 jaren geleden
.travis.yml Update Travis CI settings 8 jaren geleden
Audio.h Add PT8211 w/ experimental 4x oversampling 8 jaren geleden
AudioControl.h Add AudioSynthWaveformSine 10 jaren geleden
README.md remove Travis CI status from readme (it's too unreliable) 9 jaren geleden
analyze_fft256.cpp Initial work on FFT256 for Teensy-LC (untested) 9 jaren geleden
analyze_fft256.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_fft1024.cpp Fix some Teensy-LC compiler errors 9 jaren geleden
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_notefreq.cpp Removed debug code, updated comments 8 jaren geleden
analyze_notefreq.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_peak.cpp Add TODO for analyze peak optimization 8 jaren geleden
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_print.cpp Change AudioAnalyzePrint name API 10 jaren geleden
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_rms.cpp Don't compile M4 code on LC (but LC still not working) 9 jaren geleden
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
analyze_tonedetect.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
control_ak4558.cpp Fixed control functions, examples, GUI elements 9 jaren geleden
control_ak4558.h Fixed control functions, examples, GUI elements 9 jaren geleden
control_cs4272.cpp Add CS4272 control (thanks William Hollender) 8 jaren geleden
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 jaren geleden
control_sgtl5000.cpp Add ability to control two SGTL5000 chips 8 jaren geleden
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 jaren geleden
control_wm8731.cpp AudioControlWM8731::inputLevel(float n) 9 jaren geleden
control_wm8731.h AudioControlWM8731::inputLevel(float n) 9 jaren geleden
data_ulaw.c Add missing open source license headers 10 jaren geleden
data_waveforms.c Remove old AudioSynthWaveform 10 jaren geleden
data_windows.c Add other window types for 1024 point FFT 10 jaren geleden
effect_bitcrusher.cpp Fix compiler warning 9 jaren geleden
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_chorus.cpp Merge pull request #166 from FrankBoesing/patch-2 8 jaren geleden
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_delay.cpp Remove unused multiplier 10 jaren geleden
effect_delay.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_delay_ext.cpp Add SPI external memory timing comment 8 jaren geleden
effect_delay_ext.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_envelope.cpp Add AudioEffectEnvelope 10 jaren geleden
effect_envelope.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_fade.cpp Add MIT license 10 jaren geleden
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_flange.cpp use AUDIO_SAMPLE_RATE_EXACT 8 jaren geleden
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_midside.cpp Don't compile M4 code on LC (but LC still not working) 9 jaren geleden
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
effect_multiply.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
filter_biquad.cpp Don't cause a loud pop when changing biquad filter coefficients 8 jaren geleden
filter_biquad.h Add shelving filter support for biquad 8 jaren geleden
filter_fir.cpp Impove and document FIR filter 10 jaren geleden
filter_fir.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file 10 jaren geleden
filter_variable.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
input_adc.cpp Fix some Teensy-LC compiler errors 9 jaren geleden
input_adc.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
input_i2s.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
input_i2s_quad.cpp More hardware defs 8 jaren geleden
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
keywords.txt Add PT8211 w/ experimental 4x oversampling 8 jaren geleden
library.json Use tagged source code from repo 8 jaren geleden
library.properties Increase to version 1.03 9 jaren geleden
memcpy_audio.S More hardware defs 8 jaren geleden
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 jaren geleden
mixer.cpp Fix some Teensy-LC compiler errors 9 jaren geleden
mixer.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
multiplier.md Add a multiplier (by rheslip) 10 jaren geleden
new_objects.md change format for new_objects files 11 jaren geleden
output_dac.cpp More hardware defs 8 jaren geleden
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
output_i2s.cpp Support more clock speeds 8 jaren geleden
output_i2s.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
output_i2s_quad.cpp Support more clock speeds 8 jaren geleden
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
output_pt8211.cpp Remove LED blink in isr 8 jaren geleden
output_pt8211.h Add PT8211 w/ experimental 4x oversampling 8 jaren geleden
output_pwm.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
output_pwm.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
output_spdif.cpp Support more clock speeds 8 jaren geleden
output_spdif.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
play_memory.cpp Add status and position functions to AudioPlayMemory 10 jaren geleden
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
play_queue.cpp do not forget - your own addition :-) 10 jaren geleden
play_queue.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
play_sd_raw.cpp Do not disable all interrupts while opening RAW files 9 jaren geleden
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
play_sd_wav.cpp fix problem with left+right channels being swapped 8 jaren geleden
play_sd_wav.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
play_serialflash_raw.cpp remove leftover debug code from AudioPlaySerialflashRaw 9 jaren geleden
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
record_queue.cpp Fix harmless compiler warnings in AudioRecordQueue 10 jaren geleden
record_queue.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
spi_interrupt.cpp Add SPI interrupt registration layer 10 jaren geleden
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_dc.cpp Add AudioSynthWaveformDc 10 jaren geleden
synth_dc.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_karplusstrong.cpp Decay resonance (loop gain) slightly in Karplus Strong 8 jaren geleden
synth_karplusstrong.h Add Synthesis Guitar example 8 jaren geleden
synth_pinknoise.cpp Clean up harmless compiler warnings 10 jaren geleden
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_simple_drum.cpp Adding SimpleDrum synthesis object to audio library. 8 jaren geleden
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 jaren geleden
synth_sine.cpp fix incorrect comment 8 jaren geleden
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_tonesweep.cpp fix tonesweep 8 jaren geleden
synth_tonesweep.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_waveform.cpp #144: Add the reverse sawtooth and sample-and-hold waveforms. 9 jaren geleden
synth_waveform.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 jaren geleden
synth_whitenoise.cpp Fix more Teensy-LC compiler errors 9 jaren geleden
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h 8 jaren geleden

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