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Matt Bradshaw 1bec7b51c3 loading files and playing them using web audio api vor 6 Jahren
docs Add issue template vor 6 Jahren
examples Update WM8731 documentation vor 6 Jahren
extras loading files and playing them using web audio api vor 6 Jahren
gui Update WM8731 documentation vor 6 Jahren
utility Replace DC removal algorithm with IIR HPF, 2 Hz vor 7 Jahren
.gitignore Add documentation for new objects vor 8 Jahren
.travis.yml Update Travis CI settings vor 8 Jahren
Audio.h Add AudioInputPDM vor 6 Jahren
AudioControl.h Add AudioSynthWaveformSine vor 10 Jahren
README.md Update readme vor 7 Jahren
analyze_fft256.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_fft256.h Fix problem with optimized loops like do {} while (!myFFT.available()); vor 7 Jahren
analyze_fft1024.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
analyze_notefreq.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_notefreq.h NoteFrequency fixes vor 8 Jahren
analyze_peak.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_peak.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
analyze_print.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_print.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
analyze_rms.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_rms.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
analyze_tonedetect.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
control_ak4558.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
control_ak4558.h Fixed control functions, examples, GUI elements vor 8 Jahren
control_cs4272.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
control_cs4272.h Add CS4272 control (thanks William Hollender) vor 8 Jahren
control_cs42448.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
control_cs42448.h Add AudioControlCS42448 vor 7 Jahren
control_sgtl5000.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
control_sgtl5000.h Add ability to control two SGTL5000 chips vor 8 Jahren
control_wm8731.cpp Add WM8731 inputSelect() function and update example vor 6 Jahren
control_wm8731.h Add WM8731 inputSelect() function and update example vor 6 Jahren
data_ulaw.c Add missing open source license headers vor 10 Jahren
data_waveforms.c Remove old AudioSynthWaveform vor 10 Jahren
data_windows.c Add other window types for 1024 point FFT vor 10 Jahren
effect_bitcrusher.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_chorus.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_chorus.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_combine.cpp Add AudioEffectDigitalCombine (from Bleep Labs) vor 6 Jahren
effect_combine.h Move combine effect constants to class enum, not global scope vor 6 Jahren
effect_delay.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_delay.h Fix delay effect on Teensy 3.5 & 3.6 vor 7 Jahren
effect_delay_ext.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_delay_ext.h Add F-RAM vor 7 Jahren
effect_envelope.cpp Add isActive() and isSustain() to envelope vor 6 Jahren
effect_envelope.h Add isActive() and isSustain() to envelope vor 6 Jahren
effect_fade.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_fade.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_flange.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_flange.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_freeverb.cpp Add AudioEffectFreeverbStereo vor 6 Jahren
effect_freeverb.h Add AudioEffectFreeverbStereo vor 6 Jahren
effect_granular.cpp Increase granular speed range, change public function to setSpeed() vor 6 Jahren
effect_granular.h Increase granular speed range, change public function to setSpeed() vor 6 Jahren
effect_midside.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_midside.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_multiply.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_multiply.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
effect_reverb.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_reverb.h Add reverb effect, from Joao Rossi Filho vor 8 Jahren
effect_waveshaper.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() vor 7 Jahren
filter_biquad.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
filter_biquad.h Add shelving filter support for biquad vor 8 Jahren
filter_fir.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
filter_fir.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file vor 10 Jahren
filter_variable.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
filter_variable.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
input_adc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
input_adc.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable vor 7 Jahren
input_adcs.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
input_adcs.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable vor 7 Jahren
input_i2s.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
input_i2s.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
input_i2s_quad.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
input_pdm.cpp Add AudioInputPDM vor 6 Jahren
input_pdm.h Add AudioInputPDM vor 6 Jahren
input_tdm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
input_tdm.h Add AudioInputTDM vor 7 Jahren
keywords.txt Add simple AudioAmplifier vor 6 Jahren
library.json Let PlatformIO automatically detect Arduino v1.0 library format vor 8 Jahren
library.properties Edit version string, for Arduino 1.6.11 compatibility vor 8 Jahren
memcpy_audio.S Allow blocksizes 8 and 16 vor 8 Jahren
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) vor 8 Jahren
mixer.cpp Add simple AudioAmplifier vor 6 Jahren
mixer.h Add simple AudioAmplifier vor 6 Jahren
multiplier.md Add a multiplier (by rheslip) vor 10 Jahren
new_objects.md change format for new_objects files vor 10 Jahren
output_adat.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks vor 6 Jahren
output_dac.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_dac.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
output_dacs.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_dacs.h Add AudioOutputAnalogStereo vor 8 Jahren
output_i2s.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_i2s.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
output_i2s_quad.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
output_pt8211.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_pt8211.h changed defines to be more specific vor 8 Jahren
output_pwm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_pwm.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
output_spdif.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_spdif.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
output_tdm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
output_tdm.h Add AudioInputTDM vor 7 Jahren
play_memory.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
play_memory.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
play_queue.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
play_queue.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
play_sd_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
play_sd_wav.cpp Play WAV files with junk sections vor 6 Jahren
play_sd_wav.h Play WAV files with junk sections vor 6 Jahren
play_serialflash_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
record_queue.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
record_queue.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
spi_interrupt.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
synth_dc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_dc.h Add AudioSynthWaveformDc read() vor 7 Jahren
synth_karplusstrong.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_karplusstrong.h Add Synthesis Guitar example vor 8 Jahren
synth_pinknoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
synth_pwm.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_pwm.h Add AudioSynthWaveformPWM vor 7 Jahren
synth_simple_drum.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. vor 8 Jahren
synth_sine.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_sine.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren
synth_tonesweep.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_tonesweep.h ToneSweep improvements (thanks Pio) vor 6 Jahren
synth_waveform.cpp Fix WAVEFORM_TRIANGLE_VARIABLE at less than 1.0 amplitude vor 6 Jahren
synth_waveform.h Add waveform phase modulation vor 6 Jahren
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. vor 10 Jahren
synth_whitenoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup vor 6 Jahren
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h vor 8 Jahren

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