Speex DSP Extension
About Speex DSP
SpeexDSP is a patent-free, Open Source/Free Software DSP library that is derived from the Speex library. You can find more information at https://www.speex.org.
The Speex DSP Extension provides the following audio nodes for a Switchboard SDK audio graph:
| Node | Description |
|---|---|
| EchoCancellerNode | Removes acoustic echo from microphone signal. |
| PreprocessorNode | Applies automatic gain control (AGC) and noise suppression on the voice signal. |