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PaulStoffregen 7669598068 Add comment with link to forum conversation 4 лет назад
docs Add issue template 6 лет назад
examples Fix bug in SimultaneousPlay example 4 лет назад
extras Improve wav2sketch parsing of WAV files with junk sections 6 лет назад
gui Add note about half wave rectifier effect using waveshaper 4 лет назад
utility Fix missing DSP instruction alternates on Teensy LC 4 лет назад
.gitignore Add documentation for new objects 8 лет назад
.travis.yml Update Travis CI settings 8 лет назад
Audio.h Add rectifier effect 4 лет назад
AudioControl.h Add AudioSynthWaveformSine 10 лет назад
Quantizer.cpp async spdif input added 4 лет назад
Quantizer.h async spdif input added 4 лет назад
README.md Update readme 7 лет назад
Resampler.cpp added the maximum filter length to the parameters 4 лет назад
Resampler.h added the maximum filter length to the parameters 4 лет назад
analyze_fft256.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
analyze_fft256.h Fix problem with optimized loops like do {} while (!myFFT.available()); 7 лет назад
analyze_fft1024.cpp Import all of Frank's T4 edits 5 лет назад
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
analyze_notefreq.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
analyze_notefreq.h NoteFrequency fixes 8 лет назад
analyze_peak.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
analyze_print.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
analyze_rms.cpp Import all of Frank's T4 edits 5 лет назад
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
analyze_tonedetect.cpp Import all of Frank's T4 edits 5 лет назад
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
async_input_spdif3.cpp FLASHMEM instead of PROGMEM for functions 4 лет назад
async_input_spdif3.h stop function removed 4 лет назад
biquad.h async spdif input added 4 лет назад
control_ak4558.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
control_ak4558.h Fixed control functions, examples, GUI elements 9 лет назад
control_cs4272.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 лет назад
control_cs42448.cpp Add comment about strange CS42448 issue and undocumented bit 5 лет назад
control_cs42448.h Add AudioControlCS42448 7 лет назад
control_sgtl5000.cpp Fix CHIP_I2S_CTRL on Init (SCLK=32*fs -> 64*fs) 4 лет назад
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 лет назад
control_tlv320aic3206.cpp AIC3206: rename channel macros, add comments 6 лет назад
control_tlv320aic3206.h AIC3206: rename channel macros, add comments 6 лет назад
control_wm8731.cpp WM8731 has flaky I2C communication workaround 5 лет назад
control_wm8731.h Add WM8731 inputSelect() function and update example 6 лет назад
data_spdif.c use common spdif bcmlookup table 5 лет назад
data_ulaw.c Add missing open source license headers 10 лет назад
data_waveforms.c Remove old AudioSynthWaveform 10 лет назад
data_windows.c Add other window types for 1024 point FFT 10 лет назад
effect_bitcrusher.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_chorus.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_combine.cpp Add AudioEffectDigitalCombine (from Bleep Labs) 6 лет назад
effect_combine.h Move combine effect constants to class enum, not global scope 6 лет назад
effect_delay.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_delay.h Allow longer max delay effect on Teensy 4.0 5 лет назад
effect_delay_ext.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_delay_ext.h Add F-RAM 7 лет назад
effect_envelope.cpp Add isActive() and isSustain() to envelope 6 лет назад
effect_envelope.h Add isActive() and isSustain() to envelope 6 лет назад
effect_fade.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_flange.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_freeverb.cpp Import all of Frank's T4 edits 5 лет назад
effect_freeverb.h Add AudioEffectFreeverbStereo 6 лет назад
effect_granular.cpp Increase granular speed range, change public function to setSpeed() 6 лет назад
effect_granular.h Increase granular speed range, change public function to setSpeed() 6 лет назад
effect_midside.cpp Import all of Frank's T4 edits 5 лет назад
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_multiply.cpp Import all of Frank's T4 edits 5 лет назад
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
effect_rectifier.cpp Add rectifier effect 4 лет назад
effect_rectifier.h update keywords 4 лет назад
effect_reverb.cpp memset: wrong size - element size is not 1 6 лет назад
effect_reverb.h Add reverb effect, from Joao Rossi Filho 8 лет назад
effect_waveshaper.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() 7 лет назад
filter_biquad.cpp Add comment about noise shaping in biquad filter 5 лет назад
filter_biquad.h Add shelving filter support for biquad 8 лет назад
filter_fir.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
filter_fir.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file 10 лет назад
filter_variable.cpp Update links in comments, to Laurent de Soras's exp2 approximation info 5 лет назад
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
input_adc.cpp Fix ADC input on Teensy 3.x 4 лет назад
input_adc.h Initial support for ADC input on Teensy 4.0 4 лет назад
input_adcs.cpp align 4 лет назад
input_adcs.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable 7 лет назад
input_i2s.cpp fix warning 4 лет назад
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
input_i2s2.cpp Update input_i2s2.cpp 4 лет назад
input_i2s2.h various (see below) 5 лет назад
input_i2s_hex.cpp add DMAMEM, fix warnings 4 лет назад
input_i2s_hex.h 6 channel I2S input for Teensy 4.0 4 лет назад
input_i2s_oct.cpp 8 channel I2S input for Teensy 4.0 4 лет назад
input_i2s_oct.h 8 channel I2S input for Teensy 4.0 4 лет назад
input_i2s_quad.cpp add DMAMEM, fix warnings 4 лет назад
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
input_pdm.cpp Update input_pdm.cpp 4 лет назад
input_pdm.h Add AudioInputPDM 6 лет назад
input_spdif3.cpp spdif-input 4 лет назад
input_spdif3.h spdif-input 4 лет назад
input_tdm.cpp Fix TDM input on Teensy 4.0 5 лет назад
input_tdm.h Add AudioInputTDM 7 лет назад
input_tdm2.cpp Fix TDM2 on Teensy 4.0 5 лет назад
input_tdm2.h T4: Input TDM, Input TDM2 5 лет назад
keywords.txt update keywords 4 лет назад
library.json Let PlatformIO automatically detect Arduino v1.0 library format 8 лет назад
library.properties Edit version string, for Arduino 1.6.11 compatibility 8 лет назад
memcpy_audio.S Import all of Frank's T4 edits 5 лет назад
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 лет назад
mixer.cpp Import all of Frank's T4 edits 5 лет назад
mixer.h Import all of Frank's T4 edits 5 лет назад
multiplier.md Add a multiplier (by rheslip) 10 лет назад
new_objects.md change format for new_objects files 11 лет назад
output_adat.cpp Update output_adat.cpp 4 лет назад
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks 7 лет назад
output_dac.cpp Remove leftover debug printing 4 лет назад
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
output_dacs.cpp alignment 4 лет назад
output_dacs.h Add AudioOutputAnalogStereo 8 лет назад
output_i2s.cpp fix slave i2s output on teensy 4 4 лет назад
output_i2s.h 8 channel I2S output for Teensy 4.0 4 лет назад
output_i2s2.cpp Fix simultaneous input & output on I2S2 4 лет назад
output_i2s2.h various (see below) 5 лет назад
output_i2s_hex.cpp 6 channel I2S output for Teensy 4.0 4 лет назад
output_i2s_hex.h 6 channel I2S output for Teensy 4.0 4 лет назад
output_i2s_oct.cpp 8 channel I2S output for Teensy 4.0 4 лет назад
output_i2s_oct.h 8 channel I2S output for Teensy 4.0 4 лет назад
output_i2s_quad.cpp Add comment with link to forum conversation 4 лет назад
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
output_mqs.cpp cache-support mqs 5 лет назад
output_mqs.h add output_mqs 5 лет назад
output_pt8211.cpp Fix PT2811 crash on Teensy 4.x 4 лет назад
output_pt8211.h add output_pt8211 5 лет назад
output_pt8211_2.cpp Fix PT2811 crash on Teensy 4.x 4 лет назад
output_pt8211_2.h add output_pt8211_2 5 лет назад
output_pwm.cpp Disable not-yet-working PWM output for Teensy 4.x 4 лет назад
output_pwm.h Add Teensy 4 PWM output 4 лет назад
output_spdif.cpp Fix compile errors on Teensy LC 4 лет назад
output_spdif.h SPDIF 5 лет назад
output_spdif2.cpp PROGMEM->FLASHMEM 4 лет назад
output_spdif2.h SPDIF 5 лет назад
output_spdif3.cpp spdif-input 4 лет назад
output_spdif3.h async spdif input -> friendclass of spdif output 4 лет назад
output_tdm.cpp Fix compile errors on Teensy LC 4 лет назад
output_tdm.h Add AudioInputTDM 7 лет назад
output_tdm2.cpp Fix TDM2 on Teensy 4.0 5 лет назад
output_tdm2.h various (see below) 5 лет назад
play_memory.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
play_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 лет назад
play_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 лет назад
play_sd_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
play_sd_wav.cpp Improve interrupt handling for simultaneous WAV file playing 4 лет назад
play_sd_wav.h Bugfix for missing initialization of data pointers in AudioPlaySdWav 6 лет назад
play_serialflash_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
record_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 лет назад
record_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 лет назад
spi_interrupt.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
synth_dc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
synth_dc.h Import all of Frank's T4 edits 5 лет назад
synth_karplusstrong.cpp Fix compile errors on Teensy LC 4 лет назад
synth_karplusstrong.h Add Synthesis Guitar example 8 лет назад
synth_pinknoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 лет назад
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
synth_pwm.cpp Import all of Frank's T4 edits 5 лет назад
synth_pwm.h Add AudioSynthWaveformPWM 7 лет назад
synth_simple_drum.cpp Fix compile errors on Teensy LC 4 лет назад
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 лет назад
synth_sine.cpp Import all of Frank's T4 edits 5 лет назад
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 лет назад
synth_tonesweep.cpp Fix discontinuity in frequency stepping in tonesweep, remove unnecessary/incorrect masking of phase 4 лет назад
synth_tonesweep.h ToneSweep improvements (thanks Pio) 7 лет назад
synth_waveform.cpp Update links in comments, to Laurent de Soras's exp2 approximation info 5 лет назад
synth_waveform.h Add waveform phase modulation 6 лет назад
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 лет назад
synth_wavetable.cpp Fix compile errors on Teensy LC 4 лет назад
synth_wavetable.h Avoid global Wavetable defines 6 лет назад
synth_whitenoise.cpp Import all of Frank's T4 edits 5 лет назад
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h 8 лет назад

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