Speex DSP Extension
Extension No Longer Available
The Speex DSP Extension is no longer available from Switchboard. For noise suppression, see the RNNoise Extension. If you need acoustic echo cancellation, get in touch at hello@synervoz.com.
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 provided 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. |