@@ -1,5 +1,30 @@ | |||
#include <stdint.h> | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include <stdint.h> | |||
const int16_t ulaw_decode_table[256] = { | |||
4, 12, 20, 28, 36, 44, 52, 60, 68, 76, |
@@ -1,3 +1,29 @@ | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include <stdint.h> | |||
// These audio waveforms have a period of 256 points, plus a 257th |
@@ -1,3 +1,29 @@ | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include <stdint.h> | |||
const int16_t AudioWindowHanning256[] __attribute__ ((aligned (4))) = { |
@@ -1,3 +1,29 @@ | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include "Audio.h" | |||
#include "arm_math.h" | |||