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PaulStoffregen 24c6b7e11e Fix buffer management in stereo DAC output 7 年之前
examples Fix Tutorial 1-05 7 年之前
extras Fix format error: header chunkSize can be 16, 18, or 40 7 年之前
gui Document CY15B104 extra capacitor requirement 7 年之前
utility Replace DC removal algorithm with IIR HPF, 2 Hz 7 年之前
.gitignore Add documentation for new objects 8 年之前
.travis.yml Update Travis CI settings 8 年之前
Audio.h Add waveshaper documentation 7 年之前
AudioControl.h Add AudioSynthWaveformSine 10 年之前
README.md Update readme 7 年之前
analyze_fft256.cpp Initial work on FFT256 for Teensy-LC (untested) 9 年之前
analyze_fft256.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_fft1024.cpp Fix some Teensy-LC compiler errors 9 年之前
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_notefreq.cpp Remove leftover debug code 8 年之前
analyze_notefreq.h NoteFrequency fixes 8 年之前
analyze_peak.cpp Add TODO for analyze peak optimization 8 年之前
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_print.cpp Change AudioAnalyzePrint name API 10 年之前
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_rms.cpp Don't compile M4 code on LC (but LC still not working) 8 年之前
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_tonedetect.cpp Fix more Teensy-LC compiler errors 9 年之前
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 年之前
control_ak4558.cpp Fixed control functions, examples, GUI elements 9 年之前
control_ak4558.h Fixed control functions, examples, GUI elements 9 年之前
control_cs4272.cpp Add CS4272 control (thanks William Hollender) 8 年之前
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 年之前
control_cs42448.cpp Add AudioControlCS42448 7 年之前
control_cs42448.h Add AudioControlCS42448 7 年之前
control_sgtl5000.cpp Add ability to control two SGTL5000 chips 8 年之前
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 年之前
control_wm8731.cpp AudioControlWM8731::inputLevel(float n) 9 年之前
control_wm8731.h AudioControlWM8731::inputLevel(float n) 9 年之前
data_ulaw.c Add missing open source license headers 10 年之前
data_waveforms.c Remove old AudioSynthWaveform 10 年之前
data_windows.c Add other window types for 1024 point FFT 10 年之前
effect_bitcrusher.cpp Fix compiler warning 9 年之前
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_chorus.cpp Merge pull request #166 from FrankBoesing/patch-2 8 年之前
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_delay.cpp Fix delay effect on Teensy 3.5 & 3.6 7 年之前
effect_delay.h Fix delay effect on Teensy 3.5 & 3.6 7 年之前
effect_delay_ext.cpp Add F-RAM 7 年之前
effect_delay_ext.h Add F-RAM 7 年之前
effect_envelope.cpp Add AudioEffectEnvelope releaseNoteOn 7 年之前
effect_envelope.h Add AudioEffectEnvelope releaseNoteOn 7 年之前
effect_fade.cpp Fix minor compiler warning 8 年之前
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_flange.cpp Calculation of delay_rate_incr 8 年之前
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_midside.cpp Don't compile M4 code on LC (but LC still not working) 8 年之前
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_multiply.cpp Fix more Teensy-LC compiler errors 9 年之前
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_reverb.cpp Add reverb effect, from Joao Rossi Filho 8 年之前
effect_reverb.h Add reverb effect, from Joao Rossi Filho 8 年之前
effect_waveshaper.cpp Accept floats instead of int16_ts for waveshape in shape() 7 年之前
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() 7 年之前
filter_biquad.cpp Don't cause a loud pop when changing biquad filter coefficients 8 年之前
filter_biquad.h Add shelving filter support for biquad 8 年之前
filter_fir.cpp Impove and document FIR filter 10 年之前
filter_fir.h Do not assume AudioStream.h includes Arduino.h 8 年之前
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file 10 年之前
filter_variable.cpp Fix more Teensy-LC compiler errors 9 年之前
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 年之前
input_adc.cpp Further precision increase eliminates DC offset 7 年之前
input_adc.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable 7 年之前
input_adcs.cpp Further precision increase eliminates DC offset 7 年之前
input_adcs.h Fix indentation and move filtercoefficient to #define constant instead of int32_t variable 7 年之前
input_i2s.cpp Use 64 bit frame size for I2S master mode 7 年之前
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年之前
input_i2s_quad.cpp Quad input on Teensy 3.5 & 3.6 needs pin 38 7 年之前
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年之前
input_tdm.cpp Add AudioInputTDM 7 年之前
input_tdm.h Add AudioInputTDM 7 年之前
keywords.txt Add AudioEffectEnvelope releaseNoteOn 7 年之前
library.json Let PlatformIO automatically detect Arduino v1.0 library format 8 年之前
library.properties Edit version string, for Arduino 1.6.11 compatibility 8 年之前
memcpy_audio.S Allow blocksizes 8 and 16 8 年之前
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 年之前
mixer.cpp Fix some Teensy-LC compiler errors 9 年之前
mixer.h Do not assume AudioStream.h includes Arduino.h 8 年之前
multiplier.md Add a multiplier (by rheslip) 10 年之前
new_objects.md change format for new_objects files 11 年之前
output_dac.cpp Fix DAC output range 7 年之前
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_dacs.cpp Fix buffer management in stereo DAC output 7 年之前
output_dacs.h Add AudioOutputAnalogStereo 8 年之前
output_i2s.cpp Use 64 bit frame size for I2S master mode 7 年之前
output_i2s.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_i2s_quad.cpp Fix simultaneous quad input & output on Teensy 3.6 with CPU > 120 MHz 7 年之前
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_pt8211.cpp Add a comment for TDA1543 7 年之前
output_pt8211.h changed defines to be more specific 8 年之前
output_pwm.cpp Fix BUG for AUDIO_BLOCK_SAMPLES != 128 8 年之前
output_pwm.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_spdif.cpp Support more clock speeds 8 年之前
output_spdif.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_tdm.cpp Add AudioInputTDM 7 年之前
output_tdm.h Add AudioInputTDM 7 年之前
play_memory.cpp Fix hard-coded 128 block size limits 8 年之前
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_queue.cpp do not forget - your own addition :-) 10 年之前
play_queue.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_sd_raw.cpp Fix for two little bugs 8 年之前
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_sd_wav.cpp Fix AudioPlaySdWav status functions with LTO 7 年之前
play_sd_wav.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_serialflash_raw.cpp remove leftover debug code from AudioPlaySerialflashRaw 9 年之前
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 年之前
record_queue.cpp Fix harmless compiler warnings in AudioRecordQueue 10 年之前
record_queue.h Do not assume AudioStream.h includes Arduino.h 8 年之前
spi_interrupt.cpp Add SPI interrupt registration layer 10 年之前
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_dc.cpp Fix hard-coded 128 block size limits 8 年之前
synth_dc.h Add AudioSynthWaveformDc read() 7 年之前
synth_karplusstrong.cpp Decay resonance (loop gain) slightly in Karplus Strong 8 年之前
synth_karplusstrong.h Add Synthesis Guitar example 8 年之前
synth_pinknoise.cpp Clean up harmless compiler warnings 10 年之前
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_pwm.cpp Minor optimization in AudioSynthWaveformPWM 7 年之前
synth_pwm.h Add AudioSynthWaveformPWM 7 年之前
synth_simple_drum.cpp Adding SimpleDrum synthesis object to audio library. 8 年之前
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 年之前
synth_sine.cpp fix incorrect comment 8 年之前
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_tonesweep.cpp fix tonesweep 8 年之前
synth_tonesweep.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_waveform.cpp #144: Add the reverse sawtooth and sample-and-hold waveforms. 9 年之前
synth_waveform.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 年之前
synth_whitenoise.cpp Fix more Teensy-LC compiler errors 9 年之前
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h 8 年之前

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