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Benjamin d16055bfbd Add biquad shelf filter documentation in GUI 8 yıl önce
examples Add comments to USB examples 8 yıl önce
extras Len noticed a bug in binary velocity output 8 yıl önce
gui Add biquad shelf filter documentation in GUI 8 yıl önce
utility Support more clock speeds 8 yıl önce
.travis.yml Update Travis CI settings 8 yıl önce
Audio.h Add PT8211 w/ experimental 4x oversampling 8 yıl önce
AudioControl.h Add AudioSynthWaveformSine 10 yıl önce
README.md remove Travis CI status from readme (it's too unreliable) 9 yıl önce
analyze_fft256.cpp Initial work on FFT256 for Teensy-LC (untested) 9 yıl önce
analyze_fft256.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_fft1024.cpp Fix some Teensy-LC compiler errors 9 yıl önce
analyze_fft1024.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_notefreq.cpp Removed debug code, updated comments 8 yıl önce
analyze_notefreq.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_peak.cpp Add TODO for analyze peak optimization 8 yıl önce
analyze_peak.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_print.cpp Change AudioAnalyzePrint name API 10 yıl önce
analyze_print.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_rms.cpp Don't compile M4 code on LC (but LC still not working) 9 yıl önce
analyze_rms.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
analyze_tonedetect.cpp Fix more Teensy-LC compiler errors 9 yıl önce
analyze_tonedetect.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
control_ak4558.cpp Fixed control functions, examples, GUI elements 9 yıl önce
control_ak4558.h Fixed control functions, examples, GUI elements 9 yıl önce
control_cs4272.cpp Add CS4272 control (thanks William Hollender) 8 yıl önce
control_cs4272.h Add CS4272 control (thanks William Hollender) 8 yıl önce
control_sgtl5000.cpp Add ability to control two SGTL5000 chips 8 yıl önce
control_sgtl5000.h Add ability to control two SGTL5000 chips 8 yıl önce
control_wm8731.cpp AudioControlWM8731::inputLevel(float n) 9 yıl önce
control_wm8731.h AudioControlWM8731::inputLevel(float n) 9 yıl önce
data_ulaw.c Add missing open source license headers 10 yıl önce
data_waveforms.c Remove old AudioSynthWaveform 10 yıl önce
data_windows.c Add other window types for 1024 point FFT 10 yıl önce
effect_bitcrusher.cpp Fix compiler warning 9 yıl önce
effect_bitcrusher.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_chorus.cpp Merge pull request #166 from FrankBoesing/patch-2 8 yıl önce
effect_chorus.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_delay.cpp Remove unused multiplier 10 yıl önce
effect_delay.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_delay_ext.cpp Add SPI external memory timing comment 8 yıl önce
effect_delay_ext.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_envelope.cpp Add AudioEffectEnvelope 10 yıl önce
effect_envelope.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_fade.cpp Add MIT license 10 yıl önce
effect_fade.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_flange.cpp use AUDIO_SAMPLE_RATE_EXACT 8 yıl önce
effect_flange.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_midside.cpp Don't compile M4 code on LC (but LC still not working) 9 yıl önce
effect_midside.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
effect_multiply.cpp Fix more Teensy-LC compiler errors 9 yıl önce
effect_multiply.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
filter_biquad.cpp Don't cause a loud pop when changing biquad filter coefficients 8 yıl önce
filter_biquad.h Add shelving filter support for biquad 8 yıl önce
filter_fir.cpp Impove and document FIR filter 10 yıl önce
filter_fir.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
filter_fir.md Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file 10 yıl önce
filter_variable.cpp Fix more Teensy-LC compiler errors 9 yıl önce
filter_variable.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
input_adc.cpp Fix some Teensy-LC compiler errors 9 yıl önce
input_adc.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
input_i2s.cpp Fix more Teensy-LC compiler errors 9 yıl önce
input_i2s.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
input_i2s_quad.cpp More hardware defs 8 yıl önce
input_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
keywords.txt Add PT8211 w/ experimental 4x oversampling 8 yıl önce
library.json Use tagged source code from repo 8 yıl önce
library.properties Increase to version 1.03 9 yıl önce
memcpy_audio.S More hardware defs 8 yıl önce
memcpy_audio.h Add memcpy_tointerleaveQuad (thanks Frank) 8 yıl önce
mixer.cpp Fix some Teensy-LC compiler errors 9 yıl önce
mixer.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
multiplier.md Add a multiplier (by rheslip) 10 yıl önce
new_objects.md change format for new_objects files 11 yıl önce
output_dac.cpp More hardware defs 8 yıl önce
output_dac.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
output_i2s.cpp Support more clock speeds 8 yıl önce
output_i2s.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
output_i2s_quad.cpp Support more clock speeds 8 yıl önce
output_i2s_quad.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
output_pt8211.cpp Remove LED blink in isr 8 yıl önce
output_pt8211.h Add PT8211 w/ experimental 4x oversampling 8 yıl önce
output_pwm.cpp Fix more Teensy-LC compiler errors 9 yıl önce
output_pwm.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
output_spdif.cpp Support more clock speeds 8 yıl önce
output_spdif.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
play_memory.cpp Add status and position functions to AudioPlayMemory 10 yıl önce
play_memory.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
play_queue.cpp do not forget - your own addition :-) 10 yıl önce
play_queue.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
play_sd_raw.cpp Do not disable all interrupts while opening RAW files 9 yıl önce
play_sd_raw.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
play_sd_wav.cpp fix problem with left+right channels being swapped 8 yıl önce
play_sd_wav.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
play_serialflash_raw.cpp remove leftover debug code from AudioPlaySerialflashRaw 9 yıl önce
play_serialflash_raw.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
record_queue.cpp Fix harmless compiler warnings in AudioRecordQueue 10 yıl önce
record_queue.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
spi_interrupt.cpp Add SPI interrupt registration layer 10 yıl önce
spi_interrupt.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_dc.cpp Add AudioSynthWaveformDc 10 yıl önce
synth_dc.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_karplusstrong.cpp Decay resonance (loop gain) slightly in Karplus Strong 8 yıl önce
synth_karplusstrong.h Add Synthesis Guitar example 8 yıl önce
synth_pinknoise.cpp Clean up harmless compiler warnings 10 yıl önce
synth_pinknoise.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_simple_drum.cpp Adding SimpleDrum synthesis object to audio library. 8 yıl önce
synth_simple_drum.h Adding SimpleDrum synthesis object to audio library. 8 yıl önce
synth_sine.cpp fix incorrect comment 8 yıl önce
synth_sine.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_tonesweep.cpp fix tonesweep 8 yıl önce
synth_tonesweep.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_waveform.cpp #144: Add the reverse sawtooth and sample-and-hold waveforms. 9 yıl önce
synth_waveform.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce
synth_waveform.md Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave. 10 yıl önce
synth_whitenoise.cpp Fix more Teensy-LC compiler errors 9 yıl önce
synth_whitenoise.h Do not assume AudioStream.h includes Arduino.h 8 yıl önce

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/

Supported Hardware

Audio Adaptor Board for 16 bit stereo input and output.

Inputs Outputs

Teensy 3.1 12 bit DAC

DAC Output

Teensy 3.1 or 3.0 ADC Input

ADC Input

Teensy 3.1 or 3.0 PWM Output

PWM Output