matt venn a7baf08182 Round down to 0 to avoid the buzzing noise issue reported here: https://forum.pjrc.com/threads/57046-Freeverb-with-low-input-levels-gt-noise-and-wierd-oscillating-quot-tone-quot Niels Moseley http://www.moseleyinstruments.com/		4 年前
docs	Add issue template	6 年前
examples	Add Vocoder19Band example from Bradley Sanders	4 年前
extras	Improve wav2sketch parsing of WAV files with junk sections	6 年前
gui	Gui: finally: Fix reload issue	4 年前
utility	Fix missing DSP instruction alternates on Teensy LC	4 年前
.gitignore	Add documentation for new objects	8 年前
.travis.yml	Update Travis CI settings	8 年前
Audio.h	Add rectifier effect	4 年前
AudioControl.h	Add AudioSynthWaveformSine	10 年前
Quantizer.cpp	async spdif input added	4 年前
Quantizer.h	async spdif input added	4 年前
README.md	Update readme	7 年前
Resampler.cpp	async spdif input added	4 年前
Resampler.h	async spdif input added	4 年前
analyze_fft256.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
analyze_fft256.h	Fix problem with optimized loops like do {} while (!myFFT.available());	7 年前
analyze_fft1024.cpp	Import all of Frank's T4 edits	5 年前
analyze_fft1024.h	Do not assume AudioStream.h includes Arduino.h	8 年前
analyze_notefreq.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
analyze_notefreq.h	NoteFrequency fixes	8 年前
analyze_peak.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
analyze_peak.h	Do not assume AudioStream.h includes Arduino.h	8 年前
analyze_print.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
analyze_print.h	Do not assume AudioStream.h includes Arduino.h	8 年前
analyze_rms.cpp	Import all of Frank's T4 edits	5 年前
analyze_rms.h	Do not assume AudioStream.h includes Arduino.h	8 年前
analyze_tonedetect.cpp	Import all of Frank's T4 edits	5 年前
analyze_tonedetect.h	Do not assume AudioStream.h includes Arduino.h	8 年前
async_input_spdif3.cpp	async spdif input added	4 年前
async_input_spdif3.h	default constructor arguments	4 年前
biquad.h	async spdif input added	4 年前
control_ak4558.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
control_ak4558.h	Fixed control functions, examples, GUI elements	9 年前
control_cs4272.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
control_cs4272.h	Add CS4272 control (thanks William Hollender)	8 年前
control_cs42448.cpp	Add comment about strange CS42448 issue and undocumented bit	5 年前
control_cs42448.h	Add AudioControlCS42448	7 年前
control_sgtl5000.cpp	Fix CHIP_I2S_CTRL on Init (SCLK=32fs -> 64fs)	4 年前
control_sgtl5000.h	Add ability to control two SGTL5000 chips	8 年前
control_tlv320aic3206.cpp	AIC3206: rename channel macros, add comments	6 年前
control_tlv320aic3206.h	AIC3206: rename channel macros, add comments	6 年前
control_wm8731.cpp	WM8731 has flaky I2C communication workaround	5 年前
control_wm8731.h	Add WM8731 inputSelect() function and update example	6 年前
data_spdif.c	use common spdif bcmlookup table	5 年前
data_ulaw.c	Add missing open source license headers	10 年前
data_waveforms.c	Remove old AudioSynthWaveform	10 年前
data_windows.c	Add other window types for 1024 point FFT	10 年前
effect_bitcrusher.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_bitcrusher.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_chorus.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_chorus.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_combine.cpp	Add AudioEffectDigitalCombine (from Bleep Labs)	6 年前
effect_combine.h	Move combine effect constants to class enum, not global scope	6 年前
effect_delay.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_delay.h	Allow longer max delay effect on Teensy 4.0	5 年前
effect_delay_ext.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_delay_ext.h	Add F-RAM	7 年前
effect_envelope.cpp	Add isActive() and isSustain() to envelope	6 年前
effect_envelope.h	Add isActive() and isSustain() to envelope	6 年前
effect_fade.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_fade.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_flange.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_flange.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_freeverb.cpp	Round down to 0 to avoid the buzzing noise issue reported here:	4 年前
effect_freeverb.h	Add AudioEffectFreeverbStereo	6 年前
effect_granular.cpp	Increase granular speed range, change public function to setSpeed()	6 年前
effect_granular.h	Increase granular speed range, change public function to setSpeed()	6 年前
effect_midside.cpp	Import all of Frank's T4 edits	5 年前
effect_midside.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_multiply.cpp	Import all of Frank's T4 edits	5 年前
effect_multiply.h	Do not assume AudioStream.h includes Arduino.h	8 年前
effect_rectifier.cpp	Add rectifier effect	4 年前
effect_rectifier.h	update keywords	4 年前
effect_reverb.cpp	memset: wrong size - element size is not 1	6 年前
effect_reverb.h	Add reverb effect, from Joao Rossi Filho	8 年前
effect_waveshaper.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
effect_waveshaper.h	Accept floats instead of int16_ts for waveshape in shape()	7 年前
filter_biquad.cpp	Add comment about noise shaping in biquad filter	5 年前
filter_biquad.h	Add shelving filter support for biquad	8 年前
filter_fir.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
filter_fir.h	Do not assume AudioStream.h includes Arduino.h	8 年前
filter_fir.md	Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file	10 年前
filter_variable.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 年前
filter_variable.h	Do not assume AudioStream.h includes Arduino.h	8 年前
input_adc.cpp	Fix ADC input on Teensy 3.x	4 年前
input_adc.h	Initial support for ADC input on Teensy 4.0	4 年前
input_adcs.cpp	align	4 年前
input_adcs.h	Fix indentation and move filtercoefficient to #define constant instead of int32_t variable	7 年前
input_i2s.cpp	fix warning	4 年前
input_i2s.h	Do not assume AudioStream.h includes Arduino.h	8 年前
input_i2s2.cpp	Update input_i2s2.cpp	4 年前
input_i2s2.h	various (see below)	5 年前
input_i2s_hex.cpp	add DMAMEM, fix warnings	4 年前
input_i2s_hex.h	6 channel I2S input for Teensy 4.0	4 年前
input_i2s_oct.cpp	8 channel I2S input for Teensy 4.0	4 年前
input_i2s_oct.h	8 channel I2S input for Teensy 4.0	4 年前
input_i2s_quad.cpp	add DMAMEM, fix warnings	4 年前
input_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 年前
input_pdm.cpp	Update input_pdm.cpp	4 年前
input_pdm.h	Add AudioInputPDM	6 年前
input_spdif3.cpp	spdif-input	4 年前
input_spdif3.h	spdif-input	4 年前
input_tdm.cpp	Fix TDM input on Teensy 4.0	5 年前
input_tdm.h	Add AudioInputTDM	7 年前
input_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 年前
input_tdm2.h	T4: Input TDM, Input TDM2	5 年前
keywords.txt	update keywords	4 年前
library.json	Let PlatformIO automatically detect Arduino v1.0 library format	8 年前
library.properties	Edit version string, for Arduino 1.6.11 compatibility	8 年前
memcpy_audio.S	Import all of Frank's T4 edits	5 年前
memcpy_audio.h	Add memcpy_tointerleaveQuad (thanks Frank)	8 年前
mixer.cpp	Import all of Frank's T4 edits	5 年前
mixer.h	Import all of Frank's T4 edits	5 年前
multiplier.md	Add a multiplier (by rheslip)	10 年前
new_objects.md	change format for new_objects files	11 年前
output_adat.cpp	Update output_adat.cpp	4 年前
output_adat.h	Add ADAT 8 channel TOSLINK output by Ernstjan Freriks	7 年前
output_dac.cpp	Remove leftover debug printing	4 年前
output_dac.h	Do not assume AudioStream.h includes Arduino.h	8 年前
output_dacs.cpp	alignment	4 年前
output_dacs.h	Add AudioOutputAnalogStereo	8 年前
output_i2s.cpp	fix slave i2s output on teensy 4	4 年前
output_i2s.h	8 channel I2S output for Teensy 4.0	4 年前
output_i2s2.cpp	Fix simultaneous input & output on I2S2	4 年前
output_i2s2.h	various (see below)	5 年前
output_i2s_hex.cpp	6 channel I2S output for Teensy 4.0	4 年前
output_i2s_hex.h	6 channel I2S output for Teensy 4.0	4 年前
output_i2s_oct.cpp	8 channel I2S output for Teensy 4.0	4 年前
output_i2s_oct.h	8 channel I2S output for Teensy 4.0	4 年前
output_i2s_quad.cpp	Quad I2S output for Teensy 4.0	4 年前
output_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 年前
output_mqs.cpp	cache-support mqs	5 年前
output_mqs.h	add output_mqs	5 年前
output_pt8211.cpp	Fix compile errors on Teensy LC	4 年前
output_pt8211.h	add output_pt8211	5 年前
output_pt8211_2.cpp	Fix PT8211 on Teensy 4.x	4 年前
output_pt8211_2.h	add output_pt8211_2	5 年前
output_pwm.cpp	Disable not-yet-working PWM output for Teensy 4.x	4 年前
output_pwm.h	Add Teensy 4 PWM output	4 年前
output_spdif.cpp	Fix compile errors on Teensy LC	4 年前
output_spdif.h	SPDIF	5 年前
output_spdif2.cpp	PROGMEM->FLASHMEM	4 年前
output_spdif2.h	SPDIF	5 年前
output_spdif3.cpp	spdif-input	4 年前
output_spdif3.h	spdif-input	4 年前
output_tdm.cpp	Fix compile errors on Teensy LC	4 年前
output_tdm.h	Add AudioInputTDM	7 年前
output_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 年前
output_tdm2.h	various (see below)	5 年前
play_memory.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
play_memory.h	Do not assume AudioStream.h includes Arduino.h	8 年前
play_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年前
play_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年前
play_sd_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
play_sd_raw.h	Do not assume AudioStream.h includes Arduino.h	8 年前
play_sd_wav.cpp	Play WAV files with junk sections	6 年前
play_sd_wav.h	Bugfix for missing initialization of data pointers in AudioPlaySdWav	6 年前
play_serialflash_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
play_serialflash_raw.h	Do not assume AudioStream.h includes Arduino.h	8 年前
record_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年前
record_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年前
spi_interrupt.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
spi_interrupt.h	Do not assume AudioStream.h includes Arduino.h	8 年前
synth_dc.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
synth_dc.h	Import all of Frank's T4 edits	5 年前
synth_karplusstrong.cpp	Fix compile errors on Teensy LC	4 年前
synth_karplusstrong.h	Add Synthesis Guitar example	8 年前
synth_pinknoise.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
synth_pinknoise.h	Do not assume AudioStream.h includes Arduino.h	8 年前
synth_pwm.cpp	Import all of Frank's T4 edits	5 年前
synth_pwm.h	Add AudioSynthWaveformPWM	7 年前
synth_simple_drum.cpp	Fix compile errors on Teensy LC	4 年前
synth_simple_drum.h	Adding SimpleDrum synthesis object to audio library.	8 年前
synth_sine.cpp	Import all of Frank's T4 edits	5 年前
synth_sine.h	Do not assume AudioStream.h includes Arduino.h	8 年前
synth_tonesweep.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年前
synth_tonesweep.h	ToneSweep improvements (thanks Pio)	7 年前
synth_waveform.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 年前
synth_waveform.h	Add waveform phase modulation	6 年前
synth_waveform.md	Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave.	10 年前
synth_wavetable.cpp	Fix compile errors on Teensy LC	4 年前
synth_wavetable.h	Avoid global Wavetable defines	6 年前
synth_whitenoise.cpp	Import all of Frank's T4 edits	5 年前
synth_whitenoise.h	Do not assume AudioStream.h includes Arduino.h	8 年前

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