Ben Kurtz 0e187cb34c Implement Teensy-LC DAC audio playback - switch to single-DMA architecture (was having to manually reset address/byte counter each time anyway, so no real benefit of using two) - add 2-block output pipeline (mirroring Teensy 3.x) - (sneak in timer frequency increase - may want to revert this) - actiate DMA on timer expiration (required to use DMA from timer) - have to manually enable DMA after setup and after each call to isr - implement isr - check if dma is done (not sure this is required, but thought I saw it call once when it wasn't, and in theory you get called on errors too) - reset source buffer to point to other staging memory - re-enable dma at completion - otherwise similar to teensy3.x version		4 年之前
docs	Add issue template	6 年之前
examples	Fix I2S slave mode on Teensy 4.0	4 年之前
extras	Improve wav2sketch parsing of WAV files with junk sections	6 年之前
gui	Add pinout documentation for I2S & TDM on Teensy 4.0	5 年之前
utility	Fix compiler warning	5 年之前
.gitignore	Add documentation for new objects	8 年之前
.travis.yml	Update Travis CI settings	8 年之前
Audio.h	T4: Input TDM, Input TDM2	5 年之前
AudioControl.h	Add AudioSynthWaveformSine	10 年之前
README.md	Update readme	7 年之前
analyze_fft256.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
analyze_fft256.h	Fix problem with optimized loops like do {} while (!myFFT.available());	7 年之前
analyze_fft1024.cpp	Import all of Frank's T4 edits	5 年之前
analyze_fft1024.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
analyze_notefreq.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
analyze_notefreq.h	NoteFrequency fixes	8 年之前
analyze_peak.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
analyze_peak.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
analyze_print.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
analyze_print.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
analyze_rms.cpp	Import all of Frank's T4 edits	5 年之前
analyze_rms.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
analyze_tonedetect.cpp	Import all of Frank's T4 edits	5 年之前
analyze_tonedetect.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
control_ak4558.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
control_ak4558.h	Fixed control functions, examples, GUI elements	9 年之前
control_cs4272.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
control_cs4272.h	Add CS4272 control (thanks William Hollender)	8 年之前
control_cs42448.cpp	Add comment about strange CS42448 issue and undocumented bit	5 年之前
control_cs42448.h	Add AudioControlCS42448	7 年之前
control_sgtl5000.cpp	Import all of Frank's T4 edits	5 年之前
control_sgtl5000.h	Add ability to control two SGTL5000 chips	8 年之前
control_tlv320aic3206.cpp	AIC3206: rename channel macros, add comments	6 年之前
control_tlv320aic3206.h	AIC3206: rename channel macros, add comments	6 年之前
control_wm8731.cpp	WM8731 has flaky I2C communication workaround	5 年之前
control_wm8731.h	Add WM8731 inputSelect() function and update example	6 年之前
data_spdif.c	use common spdif bcmlookup table	5 年之前
data_ulaw.c	Add missing open source license headers	10 年之前
data_waveforms.c	Remove old AudioSynthWaveform	10 年之前
data_windows.c	Add other window types for 1024 point FFT	10 年之前
effect_bitcrusher.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_bitcrusher.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_chorus.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_chorus.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_combine.cpp	Add AudioEffectDigitalCombine (from Bleep Labs)	6 年之前
effect_combine.h	Move combine effect constants to class enum, not global scope	6 年之前
effect_delay.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_delay.h	Allow longer max delay effect on Teensy 4.0	5 年之前
effect_delay_ext.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_delay_ext.h	Add F-RAM	7 年之前
effect_envelope.cpp	Add isActive() and isSustain() to envelope	6 年之前
effect_envelope.h	Add isActive() and isSustain() to envelope	6 年之前
effect_fade.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_fade.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_flange.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_flange.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_freeverb.cpp	Import all of Frank's T4 edits	5 年之前
effect_freeverb.h	Add AudioEffectFreeverbStereo	6 年之前
effect_granular.cpp	Increase granular speed range, change public function to setSpeed()	6 年之前
effect_granular.h	Increase granular speed range, change public function to setSpeed()	6 年之前
effect_midside.cpp	Import all of Frank's T4 edits	5 年之前
effect_midside.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_multiply.cpp	Import all of Frank's T4 edits	5 年之前
effect_multiply.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
effect_reverb.cpp	memset: wrong size - element size is not 1	6 年之前
effect_reverb.h	Add reverb effect, from Joao Rossi Filho	8 年之前
effect_waveshaper.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
effect_waveshaper.h	Accept floats instead of int16_ts for waveshape in shape()	7 年之前
filter_biquad.cpp	Add comment about noise shaping in biquad filter	5 年之前
filter_biquad.h	Add shelving filter support for biquad	8 年之前
filter_fir.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
filter_fir.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
filter_fir.md	Change FIR filter (as suggested by rheslip) to filter one channel instead of two. Updated example, added documenting file	10 年之前
filter_variable.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 年之前
filter_variable.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
input_adc.cpp	Import all of Frank's T4 edits	5 年之前
input_adc.h	Fix indentation and move filtercoefficient to #define constant instead of int32_t variable	7 年之前
input_adcs.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
input_adcs.h	Fix indentation and move filtercoefficient to #define constant instead of int32_t variable	7 年之前
input_i2s.cpp	Fix I2S slave mode on Teensy 4.0	4 年之前
input_i2s.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
input_i2s2.cpp	Fix simultaneous input & output on I2S2	4 年之前
input_i2s2.h	various (see below)	5 年之前
input_i2s_quad.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
input_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
input_pdm.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
input_pdm.h	Add AudioInputPDM	6 年之前
input_tdm.cpp	Fix TDM input on Teensy 4.0	5 年之前
input_tdm.h	Add AudioInputTDM	7 年之前
input_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 年之前
input_tdm2.h	T4: Input TDM, Input TDM2	5 年之前
keywords.txt	T4: Input TDM, Input TDM2	5 年之前
library.json	Let PlatformIO automatically detect Arduino v1.0 library format	8 年之前
library.properties	Edit version string, for Arduino 1.6.11 compatibility	8 年之前
memcpy_audio.S	Import all of Frank's T4 edits	5 年之前
memcpy_audio.h	Add memcpy_tointerleaveQuad (thanks Frank)	8 年之前
mixer.cpp	Import all of Frank's T4 edits	5 年之前
mixer.h	Import all of Frank's T4 edits	5 年之前
multiplier.md	Add a multiplier (by rheslip)	10 年之前
new_objects.md	change format for new_objects files	11 年之前
output_adat.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
output_adat.h	Add ADAT 8 channel TOSLINK output by Ernstjan Freriks	7 年之前
output_dac.cpp	Implement Teensy-LC DAC audio playback	4 年之前
output_dac.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
output_dacs.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
output_dacs.h	Add AudioOutputAnalogStereo	8 年之前
output_i2s.cpp	Fix I2S slave mode on Teensy 4.0	4 年之前
output_i2s.h	various (see below)	5 年之前
output_i2s2.cpp	Fix simultaneous input & output on I2S2	4 年之前
output_i2s2.h	various (see below)	5 年之前
output_i2s_quad.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
output_i2s_quad.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
output_mqs.cpp	cache-support mqs	5 年之前
output_mqs.h	add output_mqs	5 年之前
output_pt8211.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
output_pt8211.h	add output_pt8211	5 年之前
output_pt8211_2.cpp	add output_pt8211_2	5 年之前
output_pt8211_2.h	add output_pt8211_2	5 年之前
output_pwm.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
output_pwm.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
output_spdif.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
output_spdif.h	SPDIF	5 年之前
output_spdif2.cpp	fix SPDIF2 for Teensy 3.x	5 年之前
output_spdif2.h	SPDIF	5 年之前
output_spdif3.cpp	Udpate	5 年之前
output_spdif3.h	add SPDIF3	5 年之前
output_tdm.cpp	Improve digital I/O on Teensy 3.6 with overclocking	5 年之前
output_tdm.h	Add AudioInputTDM	7 年之前
output_tdm2.cpp	Fix TDM2 on Teensy 4.0	5 年之前
output_tdm2.h	various (see below)	5 年之前
play_memory.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
play_memory.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
play_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年之前
play_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年之前
play_sd_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
play_sd_raw.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
play_sd_wav.cpp	Play WAV files with junk sections	6 年之前
play_sd_wav.h	Bugfix for missing initialization of data pointers in AudioPlaySdWav	6 年之前
play_serialflash_raw.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
play_serialflash_raw.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
record_queue.cpp	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年之前
record_queue.h	Allow larger queues on Teensy 3.5, 3.6, 4.0	5 年之前
spi_interrupt.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
spi_interrupt.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
synth_dc.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
synth_dc.h	Import all of Frank's T4 edits	5 年之前
synth_karplusstrong.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
synth_karplusstrong.h	Add Synthesis Guitar example	8 年之前
synth_pinknoise.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
synth_pinknoise.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
synth_pwm.cpp	Import all of Frank's T4 edits	5 年之前
synth_pwm.h	Add AudioSynthWaveformPWM	7 年之前
synth_simple_drum.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
synth_simple_drum.h	Adding SimpleDrum synthesis object to audio library.	8 年之前
synth_sine.cpp	Import all of Frank's T4 edits	5 年之前
synth_sine.h	Do not assume AudioStream.h includes Arduino.h	8 年之前
synth_tonesweep.cpp	Include Arduino.h first in all cpp files, for precompiled header speedup	6 年之前
synth_tonesweep.h	ToneSweep improvements (thanks Pio)	7 年之前
synth_waveform.cpp	Update links in comments, to Laurent de Soras's exp2 approximation info	5 年之前
synth_waveform.h	Add waveform phase modulation	6 年之前
synth_waveform.md	Fixed AudioSynthWaveform. Uses LUT with linear interpolation for sinewave.	10 年之前
synth_wavetable.cpp	Fix wavetable crash on instrument change after stop	6 年之前
synth_wavetable.h	Avoid global Wavetable defines	6 年之前
synth_whitenoise.cpp	Import all of Frank's T4 edits	5 年之前
synth_whitenoise.h	Do not assume AudioStream.h includes Arduino.h	8 年之前

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