PaulStoffregen 9b44b17006 Document bandlimit waveforms		3 anni fa
docs	Add issue template	6 anni fa
examples	Ladder filter frequency modulation in "volts per octave"	3 anni fa
extras	Add PROGMEM to output array	3 anni fa
gui	Document bandlimit waveforms	3 anni fa
utility	Fixes for Teensy LC	3 anni fa
.gitignore	Add documentation for new objects	8 anni fa
.travis.yml	Update Travis CI settings	8 anni fa
Audio.h	Add ladder filter, work-in-progress	3 anni fa
AudioControl.h	Add AudioSynthWaveformSine	10 anni fa
Quantizer.cpp	prevent clipping	4 anni fa
Quantizer.h	async spdif input added	4 anni fa
README.md	Mention Teensy 4.x in readme	3 anni fa
Resampler.cpp	added the maximum filter length to the parameters	4 anni fa
Resampler.h	added the maximum filter length to the parameters	4 anni fa
analyze_fft256.cpp	Fixes for Teensy LC	3 anni fa
analyze_fft256.h	Fix problem with optimized loops like do {} while (!myFFT.available());	7 anni fa
analyze_fft1024.cpp	Import all of Frank's T4 edits	5 anni fa
analyze_fft1024.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
analyze_notefreq.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
analyze_notefreq.h	NoteFrequency fixes	8 anni fa
analyze_peak.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
analyze_peak.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
analyze_print.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
analyze_print.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
analyze_rms.cpp	Import all of Frank's T4 edits	5 anni fa
analyze_rms.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
analyze_tonedetect.cpp	Import all of Frank's T4 edits	5 anni fa
analyze_tonedetect.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
async_input_spdif3.cpp	FLASHMEM instead of PROGMEM for functions	4 anni fa
async_input_spdif3.h	prevent clipping	4 anni fa
biquad.h	async spdif input added	4 anni fa
control_ak4558.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
control_ak4558.h	Fixed control functions, examples, GUI elements	9 anni fa
control_cs4272.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
control_cs4272.h	Add CS4272 control (thanks William Hollender)	8 anni fa
control_cs42448.cpp	Add comment about strange CS42448 issue and undocumented bit	5 anni fa
control_cs42448.h	Add AudioControlCS42448	7 anni fa
control_sgtl5000.cpp	Merge pull request #373 from grahamwhaley/20201229_5k_hishelf	3 anni fa
control_sgtl5000.h	Merge pull request #334 from jurgenbelien/master	3 anni fa
control_tlv320aic3206.cpp	AIC3206: rename channel macros, add comments	6 anni fa
control_tlv320aic3206.h	AIC3206: rename channel macros, add comments	6 anni fa
control_wm8731.cpp	WM8731 has flaky I2C communication workaround	5 anni fa
control_wm8731.h	Add WM8731 inputSelect() function and update example	6 anni fa
data_bandlimit_step.c	Band limited versions of square and sawtooth added to AudioSynthWaveform and AudioSynthWaveformModulated	4 anni fa
data_spdif.c	use common spdif bcmlookup table	5 anni fa
data_ulaw.c	Add missing open source license headers	10 anni fa
data_waveforms.c	Remove old AudioSynthWaveform	10 anni fa
data_windows.c	Add other window types for 1024 point FFT	10 anni fa
effect_bitcrusher.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_bitcrusher.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_chorus.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_chorus.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_combine.cpp	Add AudioEffectDigitalCombine (from Bleep Labs)	6 anni fa
effect_combine.h	Move combine effect constants to class enum, not global scope	6 anni fa
effect_delay.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_delay.h	Allow longer max delay effect on Teensy 4.0	5 anni fa
effect_delay_ext.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_delay_ext.h	Add F-RAM	7 anni fa
effect_envelope.cpp	Add isActive() and isSustain() to envelope	6 anni fa
effect_envelope.h	Add isActive() and isSustain() to envelope	6 anni fa
effect_fade.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_fade.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_flange.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_flange.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_freeverb.cpp	Round down to 0 to avoid the buzzing noise issue reported here:	4 anni fa
effect_freeverb.h	Add AudioEffectFreeverbStereo	6 anni fa
effect_granular.cpp	Increase granular speed range, change public function to setSpeed()	6 anni fa
effect_granular.h	Increase granular speed range, change public function to setSpeed()	6 anni fa
effect_midside.cpp	Import all of Frank's T4 edits	5 anni fa
effect_midside.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_multiply.cpp	Import all of Frank's T4 edits	5 anni fa
effect_multiply.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
effect_rectifier.cpp	Update effect_rectifier.cpp	4 anni fa
effect_rectifier.h	update keywords	4 anni fa
effect_reverb.cpp	memset: wrong size - element size is not 1	6 anni fa
effect_reverb.h	Add reverb effect, from Joao Rossi Filho	8 anni fa
effect_waveshaper.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
effect_waveshaper.h	Accept floats instead of int16_ts for waveshape in shape()	7 anni fa
filter_biquad.cpp	Add comment about noise shaping in biquad filter	5 anni fa
filter_biquad.h	Add shelving filter support for biquad	8 anni fa
filter_fir.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
filter_fir.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
filter_fir.md	Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file	10 anni fa
filter_ladder.cpp	Limit ladder filter to safer maximum values	3 anni fa
filter_ladder.h	Ladder filter frequency modulation in "volts per octave"	3 anni fa
filter_variable.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 anni fa
filter_variable.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
input_adc.cpp	Fix ADC input on Teensy 3.x	4 anni fa
input_adc.h	Initial support for ADC input on Teensy 4.0	4 anni fa
input_adcs.cpp	align	4 anni fa
input_adcs.h	Fix indentation and move filtercoefficient to #define constant instead of int32_t variable	7 anni fa
input_i2s.cpp	Add I2sInput Master	3 anni fa
input_i2s.h	LC input slave	3 anni fa
input_i2s2.cpp	Update input_i2s2.cpp	4 anni fa
input_i2s2.h	various (see below)	5 anni fa
input_i2s_hex.cpp	add DMAMEM, fix warnings	4 anni fa
input_i2s_hex.h	6 channel I2S input for Teensy 4.0	4 anni fa
input_i2s_oct.cpp	8 channel I2S input for Teensy 4.0	4 anni fa
input_i2s_oct.h	8 channel I2S input for Teensy 4.0	4 anni fa
input_i2s_quad.cpp	add DMAMEM, fix warnings	4 anni fa
input_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
input_pdm.cpp	Kinetis K only	3 anni fa
input_pdm.h	Add AudioInputPDM	6 anni fa
input_spdif3.cpp	spdif-input	4 anni fa
input_spdif3.h	spdif-input	4 anni fa
input_tdm.cpp	Fix TDM input on Teensy 4.0	5 anni fa
input_tdm.h	Add AudioInputTDM	7 anni fa
input_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 anni fa
input_tdm2.h	T4: Input TDM, Input TDM2	5 anni fa
keywords.txt	Change Ladder filter API to be similar to other filters	3 anni fa
library.json	Let PlatformIO automatically detect Arduino v1.0 library format	8 anni fa
library.properties	Edit version string, for Arduino 1.6.11 compatibility	8 anni fa
memcpy_audio.S	Import all of Frank's T4 edits	5 anni fa
memcpy_audio.h	Add memcpy_tointerleaveQuad (thanks Frank)	8 anni fa
mixer.cpp	Import all of Frank's T4 edits	5 anni fa
mixer.h	Import all of Frank's T4 edits	5 anni fa
multiplier.md	Add a multiplier (by rheslip)	10 anni fa
new_objects.md	change format for new_objects files	11 anni fa
output_adat.cpp	Update output_adat.cpp	4 anni fa
output_adat.h	Add ADAT 8 channel TOSLINK output by Ernstjan Freriks	7 anni fa
output_dac.cpp	Remove leftover debug printing	4 anni fa
output_dac.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
output_dacs.cpp	alignment	4 anni fa
output_dacs.h	Add AudioOutputAnalogStereo	8 anni fa
output_i2s.cpp	LC input slave	3 anni fa
output_i2s.h	Teensy LC AudioOutputI2S(+slave)	3 anni fa
output_i2s2.cpp	Fix simultaneous input & output on I2S2	4 anni fa
output_i2s2.h	various (see below)	5 anni fa
output_i2s_hex.cpp	6 channel I2S output for Teensy 4.0	4 anni fa
output_i2s_hex.h	6 channel I2S output for Teensy 4.0	4 anni fa
output_i2s_oct.cpp	8 channel I2S output for Teensy 4.0	4 anni fa
output_i2s_oct.h	8 channel I2S output for Teensy 4.0	4 anni fa
output_i2s_quad.cpp	Add comment with link to forum conversation	4 anni fa
output_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
output_mqs.cpp	MQS: Play nice	3 anni fa
output_mqs.h	add output_mqs	5 anni fa
output_pt8211.cpp	LC has no I2S0_TCR1	3 anni fa
output_pt8211.h	Add Teensy LC Code for PT8211	3 anni fa
output_pt8211_2.cpp	done :)	3 anni fa
output_pt8211_2.h	add output_pt8211_2	5 anni fa
output_pwm.cpp	Disable not-yet-working PWM output for Teensy 4.x	4 anni fa
output_pwm.h	Add Teensy 4 PWM output	4 anni fa
output_spdif.cpp	Fix compile errors on Teensy LC	4 anni fa
output_spdif.h	SPDIF	5 anni fa
output_spdif2.cpp	PROGMEM->FLASHMEM	4 anni fa
output_spdif2.h	SPDIF	5 anni fa
output_spdif3.cpp	spdif-input	4 anni fa
output_spdif3.h	async spdif input -> friendclass of spdif output	4 anni fa
output_tdm.cpp	Fix compile errors on Teensy LC	4 anni fa
output_tdm.h	Add AudioInputTDM	7 anni fa
output_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 anni fa
output_tdm2.h	various (see below)	5 anni fa
play_memory.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
play_memory.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
play_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 anni fa
play_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 anni fa
play_sd_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
play_sd_raw.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
play_sd_wav.cpp	allowing position + length to work during pause	4 anni fa
play_sd_wav.h	sdwav play/pause initial commit	4 anni fa
play_serialflash_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
play_serialflash_raw.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
record_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 anni fa
record_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 anni fa
spi_interrupt.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
spi_interrupt.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
synth_dc.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
synth_dc.h	Import all of Frank's T4 edits	5 anni fa
synth_karplusstrong.cpp	Fix compile errors on Teensy LC	4 anni fa
synth_karplusstrong.h	Add Synthesis Guitar example	8 anni fa
synth_pinknoise.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 anni fa
synth_pinknoise.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
synth_pwm.cpp	Import all of Frank's T4 edits	5 anni fa
synth_pwm.h	Add AudioSynthWaveformPWM	7 anni fa
synth_simple_drum.cpp	Fix compile errors on Teensy LC	4 anni fa
synth_simple_drum.h	Adding SimpleDrum synthesis object to audio library.	8 anni fa
synth_sine.cpp	Import all of Frank's T4 edits	5 anni fa
synth_sine.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa
synth_tonesweep.cpp	Fix discontinuity in frequency stepping in tonesweep, remove unnecessary/incorrect masking of phase	4 anni fa
synth_tonesweep.h	ToneSweep improvements (thanks Pio)	7 anni fa
synth_waveform.cpp	Merge pull request #362 from MarkTillotson/fix_phase_modulation	3 anni fa
synth_waveform.h	Improve handling of pulse waveforms to allow sub-sample width pulses and finesse remaining issues with modulation	4 anni fa
synth_waveform.md	Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave.	10 anni fa
synth_wavetable.cpp	Fix compile errors on Teensy LC	4 anni fa
synth_wavetable.h	Avoid global Wavetable defines	6 anni fa
synth_whitenoise.cpp	Import all of Frank's T4 edits	5 anni fa
synth_whitenoise.h	Do not assume AudioStream.h includes Arduino.h	8 anni fa

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