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teensy-audio
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PaulStoffregen eba5e06a9a Begin wavetable documentation 6 年前
docs Add issue template 6 年前
examples Begin wavetable documentation 6 年前
extras Improve wav2sketch parsing of WAV files with junk sections 6 年前
gui Begin wavetable documentation 6 年前
utility Replace DC removal algorithm with IIR HPF, 2 Hz 7 年前
.gitignore Add documentation for new objects 8 年前
.travis.yml Update Travis CI settings 8 年前
Audio.h Import Wavetable Synthesis project 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 年前
analyze_tonedetect.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 年前
control_wm8731.cpp Add WM8731 inputSelect() function and update example 6 年前
control_wm8731.h Add WM8731 inputSelect() function and update example 6 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 Add AudioEffectFreeverbStereo 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_multiply.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 年前
effect_reverb.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 年前
input_adc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 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 Add AudioInputPDM 6 年前
input_pdm.h Add AudioInputPDM 6 年前
input_tdm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
input_tdm.h Add AudioInputTDM 7 年前
keywords.txt Add keywords for wavetable synth 6 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 Allow blocksizes 8 and 16 8 年前
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 年前
mixer.cpp Add simple AudioAmplifier 6 年前
mixer.h Add simple AudioAmplifier 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_i2s.h Do not assume AudioStream.h includes Arduino.h 8 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_pt8211.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_pt8211.h changed defines to be more specific 8 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_spdif.h Do not assume AudioStream.h includes Arduino.h 8 年前
output_tdm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年前
output_tdm.h Add AudioInputTDM 7 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 Play WAV files with junk sections 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 Add AudioSynthWaveformDc read() 7 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Fix WAVEFORM_TRIANGLE_VARIABLE at less than 1.0 amplitude 6 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 Import Wavetable Synthesis project 6 年前
synth_wavetable.h Add comments to wavetable synth examples 6 年前
synth_whitenoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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