PaulStoffregen 9b44b17006 Document bandlimit waveforms		3 年前
docs	Add issue template	6 年前
examples	Ladder filter frequency modulation in "volts per octave"	3 年前
extras	Add PROGMEM to output array	3 年前
gui	Document bandlimit waveforms	3 年前
utility	Fixes for Teensy LC	3 年前
.gitignore	Add documentation for new objects	8 年前
.travis.yml	Update Travis CI settings	8 年前
Audio.h	Add ladder filter, work-in-progress	3 年前
AudioControl.h	Add AudioSynthWaveformSine	10 年前
Quantizer.cpp	prevent clipping	4 年前
Quantizer.h	async spdif input added	4 年前
README.md	Mention Teensy 4.x in readme	3 年前
Resampler.cpp	added the maximum filter length to the parameters	4 年前
Resampler.h	added the maximum filter length to the parameters	4 年前
analyze_fft256.cpp	Fixes for Teensy LC	3 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	FLASHMEM instead of PROGMEM for functions	4 年前
async_input_spdif3.h	prevent clipping	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	Merge pull request #373 from grahamwhaley/20201229_5k_hishelf	3 年前
control_sgtl5000.h	Merge pull request #334 from jurgenbelien/master	3 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_bandlimit_step.c	Band limited versions of square and sawtooth added to AudioSynthWaveform and AudioSynthWaveformModulated	4 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	Update effect_rectifier.cpp	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_ladder.cpp	Limit ladder filter to safer maximum values	3 年前
filter_ladder.h	Ladder filter frequency modulation in "volts per octave"	3 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	Add I2sInput Master	3 年前
input_i2s.h	LC input slave	3 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	Kinetis K only	3 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	Change Ladder filter API to be similar to other filters	3 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	LC input slave	3 年前
output_i2s.h	Teensy LC AudioOutputI2S(+slave)	3 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	Add comment with link to forum conversation	4 年前
output_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 年前
output_mqs.cpp	MQS: Play nice	3 年前
output_mqs.h	add output_mqs	5 年前
output_pt8211.cpp	LC has no I2S0_TCR1	3 年前
output_pt8211.h	Add Teensy LC Code for PT8211	3 年前
output_pt8211_2.cpp	done :)	3 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	async spdif input -> friendclass of spdif output	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	4 年前
play_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 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	allowing position + length to work during pause	4 年前
play_sd_wav.h	sdwav play/pause initial commit	4 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	4 年前
record_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 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	Fix discontinuity in frequency stepping in tonesweep, remove unnecessary/incorrect masking of phase	4 年前
synth_tonesweep.h	ToneSweep improvements (thanks Pio)	7 年前
synth_waveform.cpp	Merge pull request #362 from MarkTillotson/fix_phase_modulation	3 年前
synth_waveform.h	Improve handling of pulse waveforms to allow sub-sample width pulses and finesse remaining issues with modulation	4 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 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