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PaulStoffregen 1173ad7da9 Fix I2S output 5 年前
docs Add issue template 6 年前
examples WM8731 has flaky I2C communication workaround 5 年前
extras Improve wav2sketch parsing of WAV files with junk sections 6 年前
gui Start list of verified compatible I2S chips 5 年前
utility Fix I2S output 5 年前
.gitignore Add documentation for new objects 8 年前
.travis.yml Update Travis CI settings 8 年前
Audio.h T4: Input TDM, Input TDM2 5 年前
AudioControl.h Add AudioSynthWaveformSine 10 年前
README.md Update readme 7 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
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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
control_cs42448.h Add AudioControlCS42448 7 年前
control_sgtl5000.cpp Import all of Frank's T4 edits 5 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 Fix delay effect on Teensy 3.5 & 3.6 7 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 Import all of Frank's T4 edits 5 年前
input_adc.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable 7 年前
input_adcs.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 I2S input pin on IMXRT1062 5 年前
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_i2s2.cpp various (see below) 5 年前
input_i2s2.h various (see below) 5 年前
input_i2s_quad.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_pdm.cpp Import all of Frank's T4 edits 5 年前
input_pdm.h Add AudioInputPDM 6 年前
input_tdm.cpp T4: Input TDM, Input TDM2 5 年前
input_tdm.h Add AudioInputTDM 7 年前
input_tdm2.cpp T4: Input TDM, Input TDM2 5 年前
input_tdm2.h T4: Input TDM, Input TDM2 5 年前
keywords.txt T4: Input TDM, Input TDM2 5 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 Import all of Frank's T4 edits 5 年前
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks 7 年前
output_dac.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_dacs.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_dacs.h Add AudioOutputAnalogStereo 8 年前
output_i2s.cpp Fix I2S output 5 年前
output_i2s.h various (see below) 5 年前
output_i2s2.cpp Elimitate unused var 'dc' compile warning 5 年前
output_i2s2.h various (see below) 5 年前
output_i2s_quad.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 fix __IMXRT1062__ 5 年前
output_pt8211.h add output_pt8211 5 年前
output_pt8211_2.cpp add output_pt8211_2 5 年前
output_pt8211_2.h add output_pt8211_2 5 年前
output_pwm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_pwm.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_spdif.cpp Patch for T4B2 (Pin6 -> Pin7) 5 年前
output_spdif.h SPDIF 5 年前
output_spdif2.cpp fix SPDIF2 for Teensy 3.x 5 年前
output_spdif2.h SPDIF 5 年前
output_spdif3.cpp Udpate 5 年前
output_spdif3.h add SPDIF3 5 年前
output_tdm.cpp #if define and assign of conditional var to stop compile warning 5 年前
output_tdm.h Add AudioInputTDM 7 年前
output_tdm2.cpp T4: Input TDM, Input TDM2 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
play_queue.h Do not assume AudioStream.h includes Arduino.h 8 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
record_queue.h Do not assume AudioStream.h includes Arduino.h 8 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