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RubberBand

1:2.8.6-1

The Rubber Band API is contained in the single class RubberBand::RubberBandStretcher.

Threading notes for real-time applications:

Multiple instances of RubberBandStretcher may be created and used in separate threads concurrently. However, for any single instance of RubberBandStretcher, you may not call process() more than once concurrently, and you may not change the time or pitch ratio while a process() call is being executed (if the stretcher was created in "real-time mode"; in "offline mode" you can't change the ratios during use anyway).

So you can run process() in its own thread if you like, but if you want to change ratios dynamically from a different thread, you will need some form of mutex in your code. Changing the time or pitch ratio is real-time safe except in extreme circumstances, so for most applications that may change these dynamically it probably makes most sense to do so from the same thread as calls process(), even if that is a real-time thread.

digital audio workstation (graphical gtk2 interface)Ardour is a multichannel hard disk recorder (HDR) and digital audio workstation (DAW). It can be used to control, record, edit and run complex audio setups. . Ardour supports pro-audio interfaces through the ALSA project, which provides high quality, well designed device drivers and API's for audio I/O under Linux. Any interface supported by ALSA can be used with Ardour. This includes the all-digital 26 channel RME Hammerfall, the Midiman Delta 1010 and many others. . Ardour has support for 24 bit samples using floating point internally, non-linear editing with unlimited undo, a user-configurable mixer, MTC master/slave capabilities, MIDI hardware control surface compatibility. . It supports MIDI Machine Control, and so can be controlled from any MMC controller and many modern digital mixers. . Ardour contains a powerful multitrack audio editor/arranger that is completely non-destructive and capable of all standard non-linear editing operations (insert, replace, delete, move, trim, select, cut/copy/paste). The editor has unlimited undo/redo capabilities and can save independent "versions" of a track or an entire piece . Ardour's editor supports the community-developed LADSPA plugin standard. Arbitrary chains of plugins can be attached to any portion of a track. Every mixer strip can have any number of inputs and outputs, not just mono, stereo or 5.1. An N-way panner is included, with support for various panning models. Pre- and post-fader sends exist, each with their own gain and pan controls. Every mixer strip acts as its own bus, and thus the bus count in Ardour is unlimited. You can submix any number of strips into another strip. . Ardour's channel capacity is limited only by the number on your audio interface and the ability of your disk subsystem to stream the data back and forth. . JACK (the JACK Audio Connection Kit) is used for all audio I/O, permitting data to be exchanged in perfect samplesync with other applications and/or hardware audio interfaces. . Ardour is sample rate and size neutral - any hardware formats from 8 to 32 bits, and rates from 8kHz to 192kHz. Internal processing in 32/64 bit IEEE floating point format. . Further information can be found at .
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