KNIME Audio Nodes - Feature Extraction

This workflow shows the functionality of the KNIME Audio nodes

- Read in audio files
- Use speech-to-text services
- Extract acoustic features
- Visualize in interactive table

Pleas note:
- The CMUSphinx4 speech recognition service does not require any credentials
- Bing and IBM Watson require access to the respective services and the corresponding credentials

- The CMUSphinx4 SR node supports the use of custom language models. For more information, visit https://cmusphinx.github.io/wiki/tutoriallm/

External resources

• CMUSphinx Language model tutorial