The constructor for VarispeedSampleProvider takes a source provider, which is the input stream you want to speed up (in our example an audio file), the readDurationInMilliseconds, which allows control of how much will be read from the source provider in a single read. Int readDurationMilliseconds, SoundTouchProfile soundTouchProfile) public VarispeedSampleProvider(ISampleProvider sourceProvider, It also exposes a PlaybackRate property which can be set to 1.0 for regular speed and 2.0 for 2x playback etc. This implements NAudio’s ISampleProvider interface so it can be easily inserted into a signal chain. The next part is VarispeedSampleProvider.
#Soundhack varispeed plugins 64 Bit#
I’ve also created a wrapper class called SoundTouch which simplifies access to SoundTouch and calls the correct PInvoke method depending on whether the process is 64 bit or not. Make sure these DLLs are available in the path when running. These are SoundTouch.dll and SoundTouch_圆4.dll. First of all, the SoundTouchInterop32.cs and SoundTouchInterop64.cs files include the necessary PInvoke signatures to call the x86 and 圆4 versions of SoundTouch respectively. The key parts of the application are as follows. To do so, I’ve prepared a very simple Windows Forms Application that lets you load an audio file and play it at varying speeds. In this post I will demonstrate how you can implement varispeed playback with NAudio using the excellent SoundTouch library.
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