This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Polyphase decimation filter. | |
// | |
// Convert an oversampled audio stream to non-oversampled. Uses a | |
// windowed sinc FIR filter w/ Blackman window to control aliasing. | |
// Christian Floisand's 'blog explains it very well. | |
// | |
// This version has a very simple main processing loop (the decimate | |
// method) which vectorizes easily. | |
// | |
// Refs: |