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66 lines
2.7 KiB
Markdown
66 lines
2.7 KiB
Markdown
# SoundTouch library
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## About
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SoundTouch is an open-source audio processing library that allows changing the sound tempo, pitch and playback rate parameters independently from each other:
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* Change **tempo** while maintaining the original pitch
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* Change **pitch** while maintaining the original tempo
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* Change **playback rate** that affects both tempo and pitch at the
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same time
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* Change any combination of tempo/pitch/rate
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Visit [SoundTouch website](https://www.surina.net/soundtouch) and see the [README file](https://www.surina.net/soundtouch/readme.html) for more information and audio examples.
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### The latest stable release is 2.3.2
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## Example
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Use SoundStretch example app for modifying wav audio files, for example as follows:
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```
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soundstretch my_original_file.wav output_file.wav -tempo=+15 -pitch=-3
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```
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See the [README file](http://soundtouch.surina.net/README.html) for more usage examples and instructions how to build SoundTouch + SoundStretch.
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Ready [SoundStretch application executables](https://www.surina.net/soundtouch/download.html) are available for download for Windows and Mac OS.
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## Language & Platforms
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SoundTouch is written in C++ and compiles in virtually any platform:
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* Windows
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* Mac OS
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* Linux & Unices (including also Raspberry, Beaglebone, Yocto etc embedded Linux flavors)
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* Android
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* iOS
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* embedded systems
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The source code package includes dynamic library import modules for C#, Java and Pascal/Delphi languages.
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## Tarballs
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Source code release tarballs:
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* https://www.surina.net/soundtouch/soundtouch-2.3.2.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.3.1.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.3.0.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.2.0.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.1.2.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.1.1.tar.gz
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* https://www.surina.net/soundtouch/soundtouch-2.0.0.tar.gz
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## License
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SoundTouch is released under LGPL v2.1:
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This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See [LGPL v2.1 full license text ](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html) for details.
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--
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Also commercial license free of GPL limitations available upon request
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