PaulStoffregen f2867e9b85 Add ladder filter to design tool		3 vuotta sitten
docs	Add issue template	6 vuotta sitten
examples	Ladder filter frequency modulation in "volts per octave"	3 vuotta sitten
extras	Add PROGMEM to output array	3 vuotta sitten
gui	Add ladder filter to design tool	3 vuotta sitten
utility	Fixes for Teensy LC	3 vuotta sitten
.gitignore	Add documentation for new objects	8 vuotta sitten
.travis.yml	Update Travis CI settings	8 vuotta sitten
Audio.h	Add ladder filter, work-in-progress	3 vuotta sitten
AudioControl.h	Add AudioSynthWaveformSine	10 vuotta sitten
Quantizer.cpp	prevent clipping	4 vuotta sitten
Quantizer.h	async spdif input added	4 vuotta sitten
README.md	Mention Teensy 4.x in readme	3 vuotta sitten
Resampler.cpp	added the maximum filter length to the parameters	4 vuotta sitten
Resampler.h	added the maximum filter length to the parameters	4 vuotta sitten
analyze_fft256.cpp	Fixes for Teensy LC	3 vuotta sitten
analyze_fft256.h	Fix problem with optimized loops like do {} while (!myFFT.available());	7 vuotta sitten
analyze_fft1024.cpp	Import all of Frank's T4 edits	5 vuotta sitten
analyze_fft1024.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
analyze_notefreq.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
analyze_notefreq.h	NoteFrequency fixes	8 vuotta sitten
analyze_peak.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
analyze_peak.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
analyze_print.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
analyze_print.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
analyze_rms.cpp	Import all of Frank's T4 edits	5 vuotta sitten
analyze_rms.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
analyze_tonedetect.cpp	Import all of Frank's T4 edits	5 vuotta sitten
analyze_tonedetect.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
async_input_spdif3.cpp	FLASHMEM instead of PROGMEM for functions	4 vuotta sitten
async_input_spdif3.h	prevent clipping	4 vuotta sitten
biquad.h	async spdif input added	4 vuotta sitten
control_ak4558.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
control_ak4558.h	Fixed control functions, examples, GUI elements	9 vuotta sitten
control_cs4272.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
control_cs4272.h	Add CS4272 control (thanks William Hollender)	8 vuotta sitten
control_cs42448.cpp	Add comment about strange CS42448 issue and undocumented bit	5 vuotta sitten
control_cs42448.h	Add AudioControlCS42448	7 vuotta sitten
control_sgtl5000.cpp	Merge pull request #373 from grahamwhaley/20201229_5k_hishelf	3 vuotta sitten
control_sgtl5000.h	Merge pull request #334 from jurgenbelien/master	3 vuotta sitten
control_tlv320aic3206.cpp	AIC3206: rename channel macros, add comments	6 vuotta sitten
control_tlv320aic3206.h	AIC3206: rename channel macros, add comments	6 vuotta sitten
control_wm8731.cpp	WM8731 has flaky I2C communication workaround	5 vuotta sitten
control_wm8731.h	Add WM8731 inputSelect() function and update example	6 vuotta sitten
data_bandlimit_step.c	Band limited versions of square and sawtooth added to AudioSynthWaveform and AudioSynthWaveformModulated	4 vuotta sitten
data_spdif.c	use common spdif bcmlookup table	5 vuotta sitten
data_ulaw.c	Add missing open source license headers	10 vuotta sitten
data_waveforms.c	Remove old AudioSynthWaveform	10 vuotta sitten
data_windows.c	Add other window types for 1024 point FFT	10 vuotta sitten
effect_bitcrusher.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_bitcrusher.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_chorus.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_chorus.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_combine.cpp	Add AudioEffectDigitalCombine (from Bleep Labs)	6 vuotta sitten
effect_combine.h	Move combine effect constants to class enum, not global scope	6 vuotta sitten
effect_delay.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_delay.h	Allow longer max delay effect on Teensy 4.0	5 vuotta sitten
effect_delay_ext.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_delay_ext.h	Add F-RAM	7 vuotta sitten
effect_envelope.cpp	Add isActive() and isSustain() to envelope	6 vuotta sitten
effect_envelope.h	Add isActive() and isSustain() to envelope	6 vuotta sitten
effect_fade.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_fade.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_flange.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_flange.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_freeverb.cpp	Round down to 0 to avoid the buzzing noise issue reported here:	4 vuotta sitten
effect_freeverb.h	Add AudioEffectFreeverbStereo	6 vuotta sitten
effect_granular.cpp	Increase granular speed range, change public function to setSpeed()	6 vuotta sitten
effect_granular.h	Increase granular speed range, change public function to setSpeed()	6 vuotta sitten
effect_midside.cpp	Import all of Frank's T4 edits	5 vuotta sitten
effect_midside.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_multiply.cpp	Import all of Frank's T4 edits	5 vuotta sitten
effect_multiply.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
effect_rectifier.cpp	Update effect_rectifier.cpp	4 vuotta sitten
effect_rectifier.h	update keywords	4 vuotta sitten
effect_reverb.cpp	memset: wrong size - element size is not 1	6 vuotta sitten
effect_reverb.h	Add reverb effect, from Joao Rossi Filho	8 vuotta sitten
effect_waveshaper.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
effect_waveshaper.h	Accept floats instead of int16_ts for waveshape in shape()	7 vuotta sitten
filter_biquad.cpp	Add comment about noise shaping in biquad filter	5 vuotta sitten
filter_biquad.h	Add shelving filter support for biquad	8 vuotta sitten
filter_fir.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
filter_fir.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
filter_fir.md	Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file	10 vuotta sitten
filter_ladder.cpp	Ladder filter frequency modulation in "volts per octave"	3 vuotta sitten
filter_ladder.h	Ladder filter frequency modulation in "volts per octave"	3 vuotta sitten
filter_variable.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 vuotta sitten
filter_variable.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
input_adc.cpp	Fix ADC input on Teensy 3.x	4 vuotta sitten
input_adc.h	Initial support for ADC input on Teensy 4.0	4 vuotta sitten
input_adcs.cpp	align	4 vuotta sitten
input_adcs.h	Fix indentation and move filtercoefficient to #define constant instead of int32_t variable	7 vuotta sitten
input_i2s.cpp	Add I2sInput Master	3 vuotta sitten
input_i2s.h	LC input slave	3 vuotta sitten
input_i2s2.cpp	Update input_i2s2.cpp	4 vuotta sitten
input_i2s2.h	various (see below)	5 vuotta sitten
input_i2s_hex.cpp	add DMAMEM, fix warnings	4 vuotta sitten
input_i2s_hex.h	6 channel I2S input for Teensy 4.0	4 vuotta sitten
input_i2s_oct.cpp	8 channel I2S input for Teensy 4.0	4 vuotta sitten
input_i2s_oct.h	8 channel I2S input for Teensy 4.0	4 vuotta sitten
input_i2s_quad.cpp	add DMAMEM, fix warnings	4 vuotta sitten
input_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
input_pdm.cpp	Kinetis K only	3 vuotta sitten
input_pdm.h	Add AudioInputPDM	6 vuotta sitten
input_spdif3.cpp	spdif-input	4 vuotta sitten
input_spdif3.h	spdif-input	4 vuotta sitten
input_tdm.cpp	Fix TDM input on Teensy 4.0	5 vuotta sitten
input_tdm.h	Add AudioInputTDM	7 vuotta sitten
input_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 vuotta sitten
input_tdm2.h	T4: Input TDM, Input TDM2	5 vuotta sitten
keywords.txt	Change Ladder filter API to be similar to other filters	3 vuotta sitten
library.json	Let PlatformIO automatically detect Arduino v1.0 library format	8 vuotta sitten
library.properties	Edit version string, for Arduino 1.6.11 compatibility	8 vuotta sitten
memcpy_audio.S	Import all of Frank's T4 edits	5 vuotta sitten
memcpy_audio.h	Add memcpy_tointerleaveQuad (thanks Frank)	8 vuotta sitten
mixer.cpp	Import all of Frank's T4 edits	5 vuotta sitten
mixer.h	Import all of Frank's T4 edits	5 vuotta sitten
multiplier.md	Add a multiplier (by rheslip)	10 vuotta sitten
new_objects.md	change format for new_objects files	11 vuotta sitten
output_adat.cpp	Update output_adat.cpp	4 vuotta sitten
output_adat.h	Add ADAT 8 channel TOSLINK output by Ernstjan Freriks	7 vuotta sitten
output_dac.cpp	Remove leftover debug printing	4 vuotta sitten
output_dac.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
output_dacs.cpp	alignment	4 vuotta sitten
output_dacs.h	Add AudioOutputAnalogStereo	8 vuotta sitten
output_i2s.cpp	LC input slave	3 vuotta sitten
output_i2s.h	Teensy LC AudioOutputI2S(+slave)	3 vuotta sitten
output_i2s2.cpp	Fix simultaneous input & output on I2S2	4 vuotta sitten
output_i2s2.h	various (see below)	5 vuotta sitten
output_i2s_hex.cpp	6 channel I2S output for Teensy 4.0	4 vuotta sitten
output_i2s_hex.h	6 channel I2S output for Teensy 4.0	4 vuotta sitten
output_i2s_oct.cpp	8 channel I2S output for Teensy 4.0	4 vuotta sitten
output_i2s_oct.h	8 channel I2S output for Teensy 4.0	4 vuotta sitten
output_i2s_quad.cpp	Add comment with link to forum conversation	4 vuotta sitten
output_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
output_mqs.cpp	MQS: Play nice	3 vuotta sitten
output_mqs.h	add output_mqs	5 vuotta sitten
output_pt8211.cpp	LC has no I2S0_TCR1	3 vuotta sitten
output_pt8211.h	Add Teensy LC Code for PT8211	3 vuotta sitten
output_pt8211_2.cpp	done :)	3 vuotta sitten
output_pt8211_2.h	add output_pt8211_2	5 vuotta sitten
output_pwm.cpp	Disable not-yet-working PWM output for Teensy 4.x	4 vuotta sitten
output_pwm.h	Add Teensy 4 PWM output	4 vuotta sitten
output_spdif.cpp	Fix compile errors on Teensy LC	4 vuotta sitten
output_spdif.h	SPDIF	5 vuotta sitten
output_spdif2.cpp	PROGMEM->FLASHMEM	4 vuotta sitten
output_spdif2.h	SPDIF	5 vuotta sitten
output_spdif3.cpp	spdif-input	4 vuotta sitten
output_spdif3.h	async spdif input -> friendclass of spdif output	4 vuotta sitten
output_tdm.cpp	Fix compile errors on Teensy LC	4 vuotta sitten
output_tdm.h	Add AudioInputTDM	7 vuotta sitten
output_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 vuotta sitten
output_tdm2.h	various (see below)	5 vuotta sitten
play_memory.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
play_memory.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
play_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 vuotta sitten
play_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 vuotta sitten
play_sd_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
play_sd_raw.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
play_sd_wav.cpp	allowing position + length to work during pause	4 vuotta sitten
play_sd_wav.h	sdwav play/pause initial commit	4 vuotta sitten
play_serialflash_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
play_serialflash_raw.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
record_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 vuotta sitten
record_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	4 vuotta sitten
spi_interrupt.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
spi_interrupt.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
synth_dc.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
synth_dc.h	Import all of Frank's T4 edits	5 vuotta sitten
synth_karplusstrong.cpp	Fix compile errors on Teensy LC	4 vuotta sitten
synth_karplusstrong.h	Add Synthesis Guitar example	8 vuotta sitten
synth_pinknoise.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 vuotta sitten
synth_pinknoise.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
synth_pwm.cpp	Import all of Frank's T4 edits	5 vuotta sitten
synth_pwm.h	Add AudioSynthWaveformPWM	7 vuotta sitten
synth_simple_drum.cpp	Fix compile errors on Teensy LC	4 vuotta sitten
synth_simple_drum.h	Adding SimpleDrum synthesis object to audio library.	8 vuotta sitten
synth_sine.cpp	Import all of Frank's T4 edits	5 vuotta sitten
synth_sine.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten
synth_tonesweep.cpp	Fix discontinuity in frequency stepping in tonesweep, remove unnecessary/incorrect masking of phase	4 vuotta sitten
synth_tonesweep.h	ToneSweep improvements (thanks Pio)	7 vuotta sitten
synth_waveform.cpp	Merge pull request #362 from MarkTillotson/fix_phase_modulation	3 vuotta sitten
synth_waveform.h	Improve handling of pulse waveforms to allow sub-sample width pulses and finesse remaining issues with modulation	4 vuotta sitten
synth_waveform.md	Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave.	10 vuotta sitten
synth_wavetable.cpp	Fix compile errors on Teensy LC	4 vuotta sitten
synth_wavetable.h	Avoid global Wavetable defines	6 vuotta sitten
synth_whitenoise.cpp	Import all of Frank's T4 edits	5 vuotta sitten
synth_whitenoise.h	Do not assume AudioStream.h includes Arduino.h	8 vuotta sitten

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