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awalch6679 84da392ddd FLASHMEM instead of PROGMEM for functions 4 年前
docs Add issue template 6 年前
examples added the maximum filter length to the parameters 4 年前
extras Improve wav2sketch parsing of WAV files with junk sections 6 年前
gui Granular documentation fix 4 年前
utility PROGMEM->FLASHMEM 4 年前
.gitignore Add documentation for new objects 8 年前
.travis.yml Update Travis CI settings 8 年前
Audio.h async_spdif_input.h added to audio header 4 年前
AudioControl.h Add AudioSynthWaveformSine 10 年前
Quantizer.cpp async spdif input added 4 年前
Quantizer.h async spdif input added 4 年前
README.md Update readme 7 年前
Resampler.cpp added the maximum filter length to the parameters 4 年前
Resampler.h added the maximum filter length to the parameters 4 年前
analyze_fft256.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
analyze_fft256.h Fix problem with optimized loops like do {} while (!myFFT.available()); 7 年前
analyze_fft1024.cpp Import all of Frank's T4 edits 5 年前
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_notefreq.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
analyze_notefreq.h NoteFrequency fixes 8 年前
analyze_peak.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_print.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_rms.cpp Import all of Frank's T4 edits 5 年前
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_tonedetect.cpp Import all of Frank's T4 edits 5 年前
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 年前
async_input_spdif3.cpp FLASHMEM instead of PROGMEM for functions 4 年前
async_input_spdif3.h added the maximum filter length to the parameters 4 年前
biquad.h async spdif input added 4 年前
control_ak4558.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
control_ak4558.h Fixed control functions, examples, GUI elements 9 年前
control_cs4272.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 年前
control_cs42448.cpp Add comment about strange CS42448 issue and undocumented bit 5 年前
control_cs42448.h Add AudioControlCS42448 7 年前
control_sgtl5000.cpp Fix CHIP_I2S_CTRL on Init (SCLK=32*fs -> 64*fs) 4 年前
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 年前
control_tlv320aic3206.cpp AIC3206: rename channel macros, add comments 6 年前
control_tlv320aic3206.h AIC3206: rename channel macros, add comments 6 年前
control_wm8731.cpp WM8731 has flaky I2C communication workaround 5 年前
control_wm8731.h Add WM8731 inputSelect() function and update example 6 年前
data_spdif.c use common spdif bcmlookup table 5 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_chorus.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_combine.cpp Add AudioEffectDigitalCombine (from Bleep Labs) 6 年前
effect_combine.h Move combine effect constants to class enum, not global scope 6 年前
effect_delay.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_delay.h Allow longer max delay effect on Teensy 4.0 5 年前
effect_delay_ext.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_delay_ext.h Add F-RAM 7 年前
effect_envelope.cpp Add isActive() and isSustain() to envelope 6 年前
effect_envelope.h Add isActive() and isSustain() to envelope 6 年前
effect_fade.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_flange.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_freeverb.cpp Import all of Frank's T4 edits 5 年前
effect_freeverb.h Add AudioEffectFreeverbStereo 6 年前
effect_granular.cpp Increase granular speed range, change public function to setSpeed() 6 年前
effect_granular.h Increase granular speed range, change public function to setSpeed() 6 年前
effect_midside.cpp Import all of Frank's T4 edits 5 年前
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_multiply.cpp Import all of Frank's T4 edits 5 年前
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_reverb.cpp memset: wrong size - element size is not 1 6 年前
effect_reverb.h Add reverb effect, from Joao Rossi Filho 8 年前
effect_waveshaper.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() 7 年前
filter_biquad.cpp Add comment about noise shaping in biquad filter 5 年前
filter_biquad.h Add shelving filter support for biquad 8 年前
filter_fir.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Update links in comments, to Laurent de Soras's exp2 approximation info 5 年前
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_adc.cpp T4 ADC input, commandeer a timer not used for PWM and don't mess with pin 15 4 年前
input_adc.h Initial support for ADC input on Teensy 4.0 4 年前
input_adcs.cpp align 4 年前
input_adcs.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable 7 年前
input_i2s.cpp fix warning 4 年前
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_i2s2.cpp Update input_i2s2.cpp 4 年前
input_i2s2.h various (see below) 5 年前
input_i2s_hex.cpp add DMAMEM, fix warnings 4 年前
input_i2s_hex.h 6 channel I2S input for Teensy 4.0 4 年前
input_i2s_oct.cpp 8 channel I2S input for Teensy 4.0 4 年前
input_i2s_oct.h 8 channel I2S input for Teensy 4.0 4 年前
input_i2s_quad.cpp add DMAMEM, fix warnings 4 年前
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_pdm.cpp Update input_pdm.cpp 4 年前
input_pdm.h Add AudioInputPDM 6 年前
input_spdif3.cpp spdif-input 4 年前
input_spdif3.h spdif-input 4 年前
input_tdm.cpp Fix TDM input on Teensy 4.0 5 年前
input_tdm.h Add AudioInputTDM 7 年前
input_tdm2.cpp Fix TDM2 on Teensy 4.0 5 年前
input_tdm2.h T4: Input TDM, Input TDM2 5 年前
keywords.txt spdif-input 4 年前
library.json Let PlatformIO automatically detect Arduino v1.0 library format 8 年前
library.properties Edit version string, for Arduino 1.6.11 compatibility 8 年前
memcpy_audio.S Import all of Frank's T4 edits 5 年前
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 年前
mixer.cpp Import all of Frank's T4 edits 5 年前
mixer.h Import all of Frank's T4 edits 5 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_adat.cpp Update output_adat.cpp 4 年前
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks 7 年前
output_dac.cpp alignment 4 年前
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_dacs.cpp alignment 4 年前
output_dacs.h Add AudioOutputAnalogStereo 8 年前
output_i2s.cpp fix slave i2s output on teensy 4 4 年前
output_i2s.h 8 channel I2S output for Teensy 4.0 4 年前
output_i2s2.cpp Fix simultaneous input & output on I2S2 4 年前
output_i2s2.h various (see below) 5 年前
output_i2s_hex.cpp 6 channel I2S output for Teensy 4.0 4 年前
output_i2s_hex.h 6 channel I2S output for Teensy 4.0 4 年前
output_i2s_oct.cpp 8 channel I2S output for Teensy 4.0 4 年前
output_i2s_oct.h 8 channel I2S output for Teensy 4.0 4 年前
output_i2s_quad.cpp Quad I2S output for Teensy 4.0 4 年前
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_mqs.cpp cache-support mqs 5 年前
output_mqs.h add output_mqs 5 年前
output_pt8211.cpp DMAMEM, aligned 4 年前
output_pt8211.h add output_pt8211 5 年前
output_pt8211_2.cpp DMAMEM, aligned 4 年前
output_pt8211_2.h add output_pt8211_2 5 年前
output_pwm.cpp fix compilation error 4 年前
output_pwm.h Add Teensy 4 PWM output 4 年前
output_spdif.cpp PROGMEM->FLASHMEM 4 年前
output_spdif.h SPDIF 5 年前
output_spdif2.cpp PROGMEM->FLASHMEM 4 年前
output_spdif2.h SPDIF 5 年前
output_spdif3.cpp spdif-input 4 年前
output_spdif3.h async spdif input -> friendclass of spdif output 4 年前
output_tdm.cpp Improve digital I/O on Teensy 3.6 with overclocking 5 年前
output_tdm.h Add AudioInputTDM 7 年前
output_tdm2.cpp Fix TDM2 on Teensy 4.0 5 年前
output_tdm2.h various (see below) 5 年前
play_memory.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年前
play_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年前
play_sd_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 年前
play_sd_wav.cpp Play WAV files with junk sections 6 年前
play_sd_wav.h Bugfix for missing initialization of data pointers in AudioPlaySdWav 6 年前
play_serialflash_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 年前
record_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年前
record_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年前
spi_interrupt.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_dc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
synth_dc.h Import all of Frank's T4 edits 5 年前
synth_karplusstrong.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
synth_karplusstrong.h Add Synthesis Guitar example 8 年前
synth_pinknoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_pwm.cpp Import all of Frank's T4 edits 5 年前
synth_pwm.h Add AudioSynthWaveformPWM 7 年前
synth_simple_drum.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 年前
synth_sine.cpp Import all of Frank's T4 edits 5 年前
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 年前
synth_tonesweep.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
synth_tonesweep.h ToneSweep improvements (thanks Pio) 7 年前
synth_waveform.cpp Update links in comments, to Laurent de Soras's exp2 approximation info 5 年前
synth_waveform.h Add waveform phase modulation 6 年前
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 年前
synth_wavetable.cpp Fix wavetable crash on instrument change after stop 6 年前
synth_wavetable.h Avoid global Wavetable defines 6 年前
synth_whitenoise.cpp Import all of Frank's T4 edits 5 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/index.html

Supported Hardware

Audio Adaptor Board for 16 bit stereo input and output.

Inputs Outputs

Dual Audio Adaptor Boards for quad channel 16 bit input and output.

Teensy 3.6, Teensy 3.5, Teensy 3.2, or Teensy 3.1 12 bit DAC Output (Mono)

DAC Output

Teensy 3.6, Teensy 3.5, Teensy 3.2, Teensy 3.1 or Teensy 3.0 ADC Input (Mono)

ADC Input

Teensy 3.6, Teensy 3.5, or Teensy 3.2 ADC Input (Stereo)

ADC Input

Teensy 3.6 or Teensy 3.5 12 bit DAC Output (Stereo)

DAC Output

Teensy 3.6, Teensy 3.5, Teensy 3.2, Teensy 3.1 or Teensy 3.0 PWM Output (Mono)

PWM Output

USB Audio: Bi-Directional Stereo Streaming to a PC

Inputs Outputs