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Paul Stoffregen d37974663b
Merge pull request #373 from grahamwhaley/20201229_5k_hishelf 		3 年之前
docs Add issue template 6 年之前
examples Teensy LC needs more time 3 年之前
extras Add files via upload 4 年之前
gui Merge pull request #378 from FrankBoesing/fix-doc 3 年之前
utility Fixes for Teensy LC 3 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 rectifier effect 4 年之前
AudioControl.h Add AudioSynthWaveformSine 10 年之前
Quantizer.cpp async spdif input added 4 年之前
Quantizer.h async spdif input added 4 年之前
README.md Mention Teensy 4.x in readme 3 年之前
Resampler.cpp added the maximum filter length to the parameters 4 年之前
Resampler.h added the maximum filter length to the parameters 4 年之前
analyze_fft256.cpp Fixes for Teensy LC 3 年之前
analyze_fft256.h Fix problem with optimized loops like do {} while (!myFFT.available()); 7 年之前
analyze_fft1024.cpp Import all of Frank's T4 edits 5 年之前
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_notefreq.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
analyze_notefreq.h NoteFrequency fixes 8 年之前
analyze_peak.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_print.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_rms.cpp Import all of Frank's T4 edits 5 年之前
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 年之前
analyze_tonedetect.cpp Import all of Frank's T4 edits 5 年之前
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 年之前
async_input_spdif3.cpp FLASHMEM instead of PROGMEM for functions 4 年之前
async_input_spdif3.h stop function removed 4 年之前
biquad.h async spdif input added 4 年之前
control_ak4558.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
control_ak4558.h Fixed control functions, examples, GUI elements 9 年之前
control_cs4272.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 年之前
control_cs42448.cpp Add comment about strange CS42448 issue and undocumented bit 5 年之前
control_cs42448.h Add AudioControlCS42448 7 年之前
control_sgtl5000.cpp Merge pull request #373 from grahamwhaley/20201229_5k_hishelf 3 年之前
control_sgtl5000.h Add SGTl5000 MasterMode 3 年之前
control_tlv320aic3206.cpp AIC3206: rename channel macros, add comments 6 年之前
control_tlv320aic3206.h AIC3206: rename channel macros, add comments 6 年之前
control_wm8731.cpp WM8731 has flaky I2C communication workaround 5 年之前
control_wm8731.h Add WM8731 inputSelect() function and update example 6 年之前
data_bandlimit_step.c Band limited versions of square and sawtooth added to AudioSynthWaveform and AudioSynthWaveformModulated 4 年之前
data_spdif.c use common spdif bcmlookup table 5 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 Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_chorus.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_combine.cpp Add AudioEffectDigitalCombine (from Bleep Labs) 6 年之前
effect_combine.h Move combine effect constants to class enum, not global scope 6 年之前
effect_delay.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_delay.h Allow longer max delay effect on Teensy 4.0 5 年之前
effect_delay_ext.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_delay_ext.h Add F-RAM 7 年之前
effect_envelope.cpp Add isActive() and isSustain() to envelope 6 年之前
effect_envelope.h Add isActive() and isSustain() to envelope 6 年之前
effect_fade.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_flange.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_freeverb.cpp Import all of Frank's T4 edits 5 年之前
effect_freeverb.h Add AudioEffectFreeverbStereo 6 年之前
effect_granular.cpp Increase granular speed range, change public function to setSpeed() 6 年之前
effect_granular.h Increase granular speed range, change public function to setSpeed() 6 年之前
effect_midside.cpp Import all of Frank's T4 edits 5 年之前
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_multiply.cpp Import all of Frank's T4 edits 5 年之前
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 年之前
effect_rectifier.cpp Update effect_rectifier.cpp 4 年之前
effect_rectifier.h update keywords 4 年之前
effect_reverb.cpp memset: wrong size - element size is not 1 6 年之前
effect_reverb.h Add reverb effect, from Joao Rossi Filho 8 年之前
effect_waveshaper.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
effect_waveshaper.h Accept floats instead of int16_ts for waveshape in shape() 7 年之前
filter_biquad.cpp Add comment about noise shaping in biquad filter 5 年之前
filter_biquad.h Add shelving filter support for biquad 8 年之前
filter_fir.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 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 Update links in comments, to Laurent de Soras's exp2 approximation info 5 年之前
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 年之前
input_adc.cpp Fix ADC input on Teensy 3.x 4 年之前
input_adc.h Initial support for ADC input on Teensy 4.0 4 年之前
input_adcs.cpp align 4 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 Add I2sInput Master 3 年之前
input_i2s.h LC input slave 3 年之前
input_i2s2.cpp Update input_i2s2.cpp 4 年之前
input_i2s2.h various (see below) 5 年之前
input_i2s_hex.cpp add DMAMEM, fix warnings 4 年之前
input_i2s_hex.h 6 channel I2S input for Teensy 4.0 4 年之前
input_i2s_oct.cpp 8 channel I2S input for Teensy 4.0 4 年之前
input_i2s_oct.h 8 channel I2S input for Teensy 4.0 4 年之前
input_i2s_quad.cpp add DMAMEM, fix warnings 4 年之前
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年之前
input_pdm.cpp Kinetis K only 3 年之前
input_pdm.h Add AudioInputPDM 6 年之前
input_spdif3.cpp spdif-input 4 年之前
input_spdif3.h spdif-input 4 年之前
input_tdm.cpp Fix TDM input on Teensy 4.0 5 年之前
input_tdm.h Add AudioInputTDM 7 年之前
input_tdm2.cpp Fix TDM2 on Teensy 4.0 5 年之前
input_tdm2.h T4: Input TDM, Input TDM2 5 年之前
keywords.txt Add bandlimited pulse support 4 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 Import all of Frank's T4 edits 5 年之前
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 年之前
mixer.cpp Import all of Frank's T4 edits 5 年之前
mixer.h Import all of Frank's T4 edits 5 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_adat.cpp Update output_adat.cpp 4 年之前
output_adat.h Add ADAT 8 channel TOSLINK output by Ernstjan Freriks 7 年之前
output_dac.cpp Remove leftover debug printing 4 年之前
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_dacs.cpp alignment 4 年之前
output_dacs.h Add AudioOutputAnalogStereo 8 年之前
output_i2s.cpp LC input slave 3 年之前
output_i2s.h Teensy LC AudioOutputI2S(+slave) 3 年之前
output_i2s2.cpp Fix simultaneous input & output on I2S2 4 年之前
output_i2s2.h various (see below) 5 年之前
output_i2s_hex.cpp 6 channel I2S output for Teensy 4.0 4 年之前
output_i2s_hex.h 6 channel I2S output for Teensy 4.0 4 年之前
output_i2s_oct.cpp 8 channel I2S output for Teensy 4.0 4 年之前
output_i2s_oct.h 8 channel I2S output for Teensy 4.0 4 年之前
output_i2s_quad.cpp Add comment with link to forum conversation 4 年之前
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 年之前
output_mqs.cpp MQS: Play nice 3 年之前
output_mqs.h add output_mqs 5 年之前
output_pt8211.cpp LC has no I2S0_TCR1 3 年之前
output_pt8211.h Add Teensy LC Code for PT8211 3 年之前
output_pt8211_2.cpp done :) 3 年之前
output_pt8211_2.h add output_pt8211_2 5 年之前
output_pwm.cpp Disable not-yet-working PWM output for Teensy 4.x 4 年之前
output_pwm.h Add Teensy 4 PWM output 4 年之前
output_spdif.cpp Fix compile errors on Teensy LC 4 年之前
output_spdif.h SPDIF 5 年之前
output_spdif2.cpp PROGMEM->FLASHMEM 4 年之前
output_spdif2.h SPDIF 5 年之前
output_spdif3.cpp spdif-input 4 年之前
output_spdif3.h async spdif input -> friendclass of spdif output 4 年之前
output_tdm.cpp Fix compile errors on Teensy LC 4 年之前
output_tdm.h Add AudioInputTDM 7 年之前
output_tdm2.cpp Fix TDM2 on Teensy 4.0 5 年之前
output_tdm2.h various (see below) 5 年之前
play_memory.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年之前
play_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年之前
play_sd_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 年之前
play_sd_wav.cpp Improve interrupt handling for simultaneous WAV file playing 4 年之前
play_sd_wav.h Bugfix for missing initialization of data pointers in AudioPlaySdWav 6 年之前
play_serialflash_raw.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 年之前
record_queue.cpp Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年之前
record_queue.h Allow larger queues on Teensy 3.5, 3.6, 4.0 4 年之前
spi_interrupt.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_dc.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
synth_dc.h Import all of Frank's T4 edits 5 年之前
synth_karplusstrong.cpp Fix compile errors on Teensy LC 4 年之前
synth_karplusstrong.h Add Synthesis Guitar example 8 年之前
synth_pinknoise.cpp Include Arduino.h first in all cpp files, for precompiled header speedup 6 年之前
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_pwm.cpp Import all of Frank's T4 edits 5 年之前
synth_pwm.h Add AudioSynthWaveformPWM 7 年之前
synth_simple_drum.cpp Fix compile errors on Teensy LC 4 年之前
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 年之前
synth_sine.cpp Import all of Frank's T4 edits 5 年之前
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 年之前
synth_tonesweep.cpp Fix discontinuity in frequency stepping in tonesweep, remove unnecessary/incorrect masking of phase 4 年之前
synth_tonesweep.h ToneSweep improvements (thanks Pio) 7 年之前
synth_waveform.cpp Improve handling of pulse waveforms to allow sub-sample width pulses and finesse remaining issues with modulation 4 年之前
synth_waveform.h Improve handling of pulse waveforms to allow sub-sample width pulses and finesse remaining issues with modulation 4 年之前
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 年之前
synth_wavetable.cpp Fix compile errors on Teensy LC 4 年之前
synth_wavetable.h Avoid global Wavetable defines 6 年之前
synth_whitenoise.cpp Import all of Frank's T4 edits 5 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 and Teensy 4.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