PaulStoffregen 43ffaa01b7 Add (minimal) AudioOutputI2SQuad documentation		8 лет назад
examples	Add ability to control two SGTL5000 chips	8 лет назад
extras/wav2sketch	Rename AudioAnalyzeGuitarTuner to AudioAnalyzeNoteFrequency	9 лет назад
gui	Add (minimal) AudioOutputI2SQuad documentation	8 лет назад
utility	rewrite AudioAnalyzeRMS - arm math version doesn't work!	8 лет назад
.travis.yml	Skip unused source files	9 лет назад
Audio.h	Begin work on quad channel audio output	8 лет назад
AudioControl.h	Add AudioSynthWaveformSine	10 лет назад
README.md	remove Travis CI status from readme (it's too unreliable)	8 лет назад
analyze_fft256.cpp	Initial work on FFT256 for Teensy-LC (untested)	9 лет назад
analyze_fft256.h	Fix FFT read range (now inclusive)	9 лет назад
analyze_fft1024.cpp	Fix some Teensy-LC compiler errors	9 лет назад
analyze_fft1024.h	Fix FFT read range (now inclusive)	9 лет назад
analyze_notefreq.cpp	Rename AudioAnalyzeGuitarTuner to AudioAnalyzeNoteFrequency	9 лет назад
analyze_notefreq.h	Rename AudioAnalyzeGuitarTuner to AudioAnalyzeNoteFrequency	9 лет назад
analyze_peak.cpp	Add TODO for analyze peak optimization	8 лет назад
analyze_peak.h	Add readPeakToPeak() to AudioAnalyzePeak	8 лет назад
analyze_print.cpp	Change AudioAnalyzePrint name API	10 лет назад
analyze_print.h	Change AudioAnalyzePrint name API	10 лет назад
analyze_rms.cpp	Don't compile M4 code on LC (but LC still not working)	8 лет назад
analyze_rms.h	rewrite AudioAnalyzeRMS - arm math version doesn't work!	8 лет назад
analyze_tonedetect.cpp	Fix more Teensy-LC compiler errors	9 лет назад
analyze_tonedetect.h	Add MIT license	10 лет назад
control_ak4558.cpp	Fixed control functions, examples, GUI elements	9 лет назад
control_ak4558.h	Fixed control functions, examples, GUI elements	9 лет назад
control_sgtl5000.cpp	Add ability to control two SGTL5000 chips	8 лет назад
control_sgtl5000.h	Add ability to control two SGTL5000 chips	8 лет назад
control_wm8731.cpp	AudioControlWM8731::inputLevel(float n)	9 лет назад
control_wm8731.h	AudioControlWM8731::inputLevel(float n)	9 лет назад
data_ulaw.c	Add missing open source license headers	10 лет назад
data_waveforms.c	Remove old AudioSynthWaveform	10 лет назад
data_windows.c	Add other window types for 1024 point FFT	10 лет назад
effect_bitcrusher.cpp	Fix compiler warning	9 лет назад
effect_bitcrusher.h	Add Bitcrusher effect (thanks Pensive)	9 лет назад
effect_chorus.cpp	Remove debug Serial.print...	8 лет назад
effect_chorus.h	remove unimplemented stop()	10 лет назад
effect_delay.cpp	Remove unused multiplier	10 лет назад
effect_delay.h	Add AudioEffectDelay	10 лет назад
effect_delay_ext.cpp	Add support for Frank's 6-chip Memoryboard4 (AUDIO_MEMORY_MEMORYBOARD)	9 лет назад
effect_delay_ext.h	Add support for Frank's 6-chip Memoryboard4 (AUDIO_MEMORY_MEMORYBOARD)	9 лет назад
effect_envelope.cpp	Add AudioEffectEnvelope	10 лет назад
effect_envelope.h	Add AudioEffectEnvelope	10 лет назад
effect_fade.cpp	Add MIT license	10 лет назад
effect_fade.h	Add MIT license	10 лет назад
effect_flange.cpp	Change Flange effect to one channel	10 лет назад
effect_flange.h	remove unimplemented stop()	10 лет назад
effect_midside.cpp	Don't compile M4 code on LC (but LC still not working)	8 лет назад
effect_midside.h	Add AudioEffectMidSide (thanks Hedde Bosman)	8 лет назад
effect_multiply.cpp	Fix more Teensy-LC compiler errors	9 лет назад
effect_multiply.h	Add AudioEffectMultiply	10 лет назад
filter_biquad.cpp	Fix more Teensy-LC compiler errors	9 лет назад
filter_biquad.h	Improve Biquad filter	10 лет назад
filter_fir.cpp	Impove and document FIR filter	10 лет назад
filter_fir.h	Impove and document FIR filter	10 лет назад
filter_fir.md	Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file	10 лет назад
filter_variable.cpp	Fix more Teensy-LC compiler errors	9 лет назад
filter_variable.h	Finish AudioFilterStateVariable (signal control of corner frequency)	10 лет назад
input_adc.cpp	Fix some Teensy-LC compiler errors	9 лет назад
input_adc.h	Fix AudioInputAnalog	10 лет назад
input_i2s.cpp	Fix more Teensy-LC compiler errors	9 лет назад
input_i2s.h	Use DMAChannel begin()	10 лет назад
keywords.txt	Add ability to control two SGTL5000 chips	8 лет назад
library.json	Handle all nested examples	9 лет назад
library.properties	Increase to version 1.03	9 лет назад
memcpy_audio.S	Optimize I2S output memory copy (thanks Frank Bösing)	8 лет назад
memcpy_audio.h	Optimize I2S output memory copy (thanks Frank Bösing)	8 лет назад
mixer.cpp	Fix some Teensy-LC compiler errors	9 лет назад
mixer.h	Allow negative/inverting mixer gain	9 лет назад
multiplier.md	Add a multiplier (by rheslip)	10 лет назад
new_objects.md	change format for new_objects files	11 лет назад
output_dac.cpp	Initial work on DAC for Teensy-LC (still incomplete)	9 лет назад
output_dac.h	Initial work on DAC for Teensy-LC (still incomplete)	9 лет назад
output_i2s.cpp	Optimize I2S output memory copy (thanks Frank Bösing)	8 лет назад
output_i2s.h	Use DMAChannel begin()	10 лет назад
output_i2s_quad.cpp	fix quad channel DMA settings	8 лет назад
output_i2s_quad.h	Begin work on quad channel audio output	8 лет назад
output_pwm.cpp	Fix more Teensy-LC compiler errors	9 лет назад
output_pwm.h	Make input ADC and output DAC play nicely together	10 лет назад
output_spdif.cpp	Fix more Teensy-LC compiler errors	9 лет назад
output_spdif.h	Add keywords	9 лет назад
play_memory.cpp	Add status and position functions to AudioPlayMemory	10 лет назад
play_memory.h	Add status and position functions to AudioPlayMemory	10 лет назад
play_queue.cpp	do not forget - your own addition :-)	10 лет назад
play_queue.h	do not forget - your own addition :-)	10 лет назад
play_sd_raw.cpp	Do not disable all interrupts while opening RAW files	9 лет назад
play_sd_raw.h	Fix status functions in AudioPlaySdRaw	10 лет назад
play_sd_wav.cpp	Fix stereo WAV file startup & end (first and last 3 milliseconds)	9 лет назад
play_sd_wav.h	Fix audible click at end of Wav file playing	10 лет назад
play_serialflash_raw.cpp	remove leftover debug code from AudioPlaySerialflashRaw	9 лет назад
play_serialflash_raw.h	Add AudioPlaySerialflashRaw	9 лет назад
record_queue.cpp	Fix harmless compiler warnings in AudioRecordQueue	10 лет назад
record_queue.h	Finish AudioRecordQueue and Record example	10 лет назад
spi_interrupt.cpp	Add SPI interrupt registration layer	10 лет назад
spi_interrupt.h	register SPI interrupt when playing WAV & RAW files	10 лет назад
synth_dc.cpp	Add AudioSynthWaveformDc	10 лет назад
synth_dc.h	simplify overflow checks somewhat	10 лет назад
synth_pinknoise.cpp	Clean up harmless compiler warnings	10 лет назад
synth_pinknoise.h	Add AudioSynthNoisePink	10 лет назад
synth_sine.cpp	Oops, transmit the hires sine low bits properly	8 лет назад
synth_sine.h	Add AudioSynthWaveformSineHires - High Precision Sine Wave	8 лет назад
synth_tonesweep.cpp	Fix up synth_tonesweep and the example to conform (more closely) to the naming conventions	10 лет назад
synth_tonesweep.h	Clean up harmless compiler warnings	10 лет назад
synth_waveform.cpp	#144: Add the reverse sawtooth and sample-and-hold waveforms.	9 лет назад
synth_waveform.h	#144: Add the reverse sawtooth and sample-and-hold waveforms.	9 лет назад
synth_waveform.md	Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave.	10 лет назад
synth_whitenoise.cpp	Fix more Teensy-LC compiler errors	9 лет назад
synth_whitenoise.h	Fix multiple white noise instances	10 лет назад

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.

Teensy 3.1 12 bit DAC

Teensy 3.1 or 3.0 ADC Input

Teensy 3.1 or 3.0 PWM Output