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PaulStoffregen f4bdcb4862 Document maximum possible delays пре 7 година
examples Add ADAT 8 channel TOSLINK output by Ernstjan Freriks пре 7 година
extras Fix format error: header chunkSize can be 16, 18, or 40 пре 7 година
gui Document maximum possible delays пре 7 година
utility Replace DC removal algorithm with IIR HPF, 2 Hz пре 7 година
.gitignore Add documentation for new objects пре 8 година
.travis.yml Update Travis CI settings пре 8 година
Audio.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks пре 7 година
AudioControl.h Add AudioSynthWaveformSine пре 10 година
README.md Update readme пре 7 година
analyze_fft256.cpp Initial work on FFT256 for Teensy-LC (untested) пре 9 година
analyze_fft256.h Fix problem with optimized loops like do {} while (!myFFT.available()); пре 7 година
analyze_fft1024.cpp Fix some Teensy-LC compiler errors пре 9 година
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h пре 8 година
analyze_notefreq.cpp Remove leftover debug code пре 8 година
analyze_notefreq.h NoteFrequency fixes пре 8 година
analyze_peak.cpp Add TODO for analyze peak optimization пре 8 година
analyze_peak.h Do not assume AudioStream.h includes Arduino.h пре 8 година
analyze_print.cpp Change AudioAnalyzePrint name API пре 10 година
analyze_print.h Do not assume AudioStream.h includes Arduino.h пре 8 година
analyze_rms.cpp AudioAnalyzeRMS needs to treat no input as zeros пре 7 година
analyze_rms.h Do not assume AudioStream.h includes Arduino.h пре 8 година
analyze_tonedetect.cpp Fix more Teensy-LC compiler errors пре 9 година
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h пре 8 година
control_ak4558.cpp Fixed control functions, examples, GUI elements пре 9 година
control_ak4558.h Fixed control functions, examples, GUI elements пре 9 година
control_cs4272.cpp Add CS4272 control (thanks William Hollender) пре 8 година
control_cs4272.h Add CS4272 control (thanks William Hollender) пре 8 година
control_cs42448.cpp Add AudioControlCS42448 пре 7 година
control_cs42448.h Add AudioControlCS42448 пре 7 година
control_sgtl5000.cpp Add ability to control two SGTL5000 chips пре 8 година
control_sgtl5000.h Add ability to control two SGTL5000 chips пре 8 година
control_wm8731.cpp AudioControlWM8731::inputLevel(float n) пре 9 година
control_wm8731.h AudioControlWM8731::inputLevel(float n) пре 9 година
data_ulaw.c Add missing open source license headers пре 10 година
data_waveforms.c Remove old AudioSynthWaveform пре 10 година
data_windows.c Add other window types for 1024 point FFT пре 10 година
effect_bitcrusher.cpp Fix compiler warning пре 9 година
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_chorus.cpp Merge pull request #166 from FrankBoesing/patch-2 пре 8 година
effect_chorus.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_delay.cpp Fix delay effect on Teensy 3.5 & 3.6 пре 7 година
effect_delay.h Fix delay effect on Teensy 3.5 & 3.6 пре 7 година
effect_delay_ext.cpp Add F-RAM пре 7 година
effect_delay_ext.h Add F-RAM пре 7 година
effect_envelope.cpp Add AudioEffectEnvelope releaseNoteOn пре 7 година
effect_envelope.h Add AudioEffectEnvelope releaseNoteOn пре 7 година
effect_fade.cpp Fix minor compiler warning пре 8 година
effect_fade.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_flange.cpp Calculation of delay_rate_incr пре 8 година
effect_flange.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_midside.cpp Don't compile M4 code on LC (but LC still not working) пре 8 година
effect_midside.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_multiply.cpp Fix more Teensy-LC compiler errors пре 9 година
effect_multiply.h Do not assume AudioStream.h includes Arduino.h пре 8 година
effect_reverb.cpp Add reverb effect, from Joao Rossi Filho пре 8 година
effect_reverb.h Add reverb effect, from Joao Rossi Filho пре 8 година
effect_waveshaper.cpp Accept floats instead of int16_ts for waveshape in shape() пре 7 година
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() пре 7 година
filter_biquad.cpp Don't cause a loud pop when changing biquad filter coefficients пре 8 година
filter_biquad.h Add shelving filter support for biquad пре 8 година
filter_fir.cpp Impove and document FIR filter пре 10 година
filter_fir.h Do not assume AudioStream.h includes Arduino.h пре 8 година
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file пре 10 година
filter_variable.cpp Fix more Teensy-LC compiler errors пре 9 година
filter_variable.h Do not assume AudioStream.h includes Arduino.h пре 8 година
input_adc.cpp Further precision increase eliminates DC offset пре 7 година
input_adc.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable пре 7 година
input_adcs.cpp Further precision increase eliminates DC offset пре 7 година
input_adcs.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable пре 7 година
input_i2s.cpp Use 64 bit frame size for I2S master mode пре 7 година
input_i2s.h Do not assume AudioStream.h includes Arduino.h пре 8 година
input_i2s_quad.cpp Quad input on Teensy 3.5 & 3.6 needs pin 38 пре 7 година
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h пре 8 година
input_tdm.cpp Add AudioInputTDM пре 7 година
input_tdm.h Add AudioInputTDM пре 7 година
keywords.txt Add ADAT 8 channel TOSLINK output by Ernstjan Freriks пре 7 година
library.json Let PlatformIO automatically detect Arduino v1.0 library format пре 8 година
library.properties Edit version string, for Arduino 1.6.11 compatibility пре 8 година
memcpy_audio.S Allow blocksizes 8 and 16 пре 8 година
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) пре 8 година
mixer.cpp Fix some Teensy-LC compiler errors пре 9 година
mixer.h Do not assume AudioStream.h includes Arduino.h пре 8 година
multiplier.md Add a multiplier (by rheslip) пре 10 година
new_objects.md change format for new_objects files пре 11 година
output_adat.cpp Add ADAT 8 channel TOSLINK output by Ernstjan Freriks пре 7 година
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks пре 7 година
output_dac.cpp Fix DAC output range пре 7 година
output_dac.h Do not assume AudioStream.h includes Arduino.h пре 8 година
output_dacs.cpp Fix buffer management in stereo DAC output пре 7 година
output_dacs.h Add AudioOutputAnalogStereo пре 8 година
output_i2s.cpp Use 64 bit frame size for I2S master mode пре 7 година
output_i2s.h Do not assume AudioStream.h includes Arduino.h пре 8 година
output_i2s_quad.cpp Fix simultaneous quad input & output on Teensy 3.6 with CPU > 120 MHz пре 7 година
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h пре 8 година
output_pt8211.cpp Add a comment for TDA1543 пре 7 година
output_pt8211.h changed defines to be more specific пре 8 година
output_pwm.cpp Fix BUG for AUDIO_BLOCK_SAMPLES != 128 пре 8 година
output_pwm.h Do not assume AudioStream.h includes Arduino.h пре 8 година
output_spdif.cpp Support more clock speeds пре 8 година
output_spdif.h Do not assume AudioStream.h includes Arduino.h пре 8 година
output_tdm.cpp Add AudioInputTDM пре 7 година
output_tdm.h Add AudioInputTDM пре 7 година
play_memory.cpp Fix hard-coded 128 block size limits пре 8 година
play_memory.h Do not assume AudioStream.h includes Arduino.h пре 8 година
play_queue.cpp do not forget - your own addition :-) пре 10 година
play_queue.h Do not assume AudioStream.h includes Arduino.h пре 8 година
play_sd_raw.cpp Fix for two little bugs пре 8 година
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h пре 8 година
play_sd_wav.cpp Fix AudioPlaySdWav status functions with LTO пре 7 година
play_sd_wav.h Do not assume AudioStream.h includes Arduino.h пре 8 година
play_serialflash_raw.cpp remove leftover debug code from AudioPlaySerialflashRaw пре 9 година
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h пре 8 година
record_queue.cpp Fix harmless compiler warnings in AudioRecordQueue пре 10 година
record_queue.h Do not assume AudioStream.h includes Arduino.h пре 8 година
spi_interrupt.cpp Add SPI interrupt registration layer пре 10 година
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h пре 8 година
synth_dc.cpp Fix hard-coded 128 block size limits пре 8 година
synth_dc.h Add AudioSynthWaveformDc read() пре 7 година
synth_karplusstrong.cpp Decay resonance (loop gain) slightly in Karplus Strong пре 8 година
synth_karplusstrong.h Add Synthesis Guitar example пре 8 година
synth_pinknoise.cpp Clean up harmless compiler warnings пре 10 година
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h пре 8 година
synth_pwm.cpp Minor optimization in AudioSynthWaveformPWM пре 7 година
synth_pwm.h Add AudioSynthWaveformPWM пре 7 година
synth_simple_drum.cpp Adding SimpleDrum synthesis object to audio library. пре 8 година
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. пре 8 година
synth_sine.cpp Fix AudioSynthWaveformSineModulated amplitude without mod input (thanks neurofun) пре 7 година
synth_sine.h Do not assume AudioStream.h includes Arduino.h пре 8 година
synth_tonesweep.cpp ToneSweep improvements (thanks Pio) пре 7 година
synth_tonesweep.h ToneSweep improvements (thanks Pio) пре 7 година
synth_waveform.cpp #144: Add the reverse sawtooth and sample-and-hold waveforms. пре 9 година
synth_waveform.h Do not assume AudioStream.h includes Arduino.h пре 8 година
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. пре 10 година
synth_whitenoise.cpp Fix more Teensy-LC compiler errors пре 9 година
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h пре 8 година

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