KNIME Audio Nodes - And Example of Speech-to-Text

This workflow shows the functionality of the KNIME Audio nodes in combination with Text Mining.

The example audio file contains a one minute sample of an audio book of Alice's Adventures in Wonderland by Lewis Carroll.

- Read in audio files
- Use speech-to-text services
- Use text mining to see which speech-to-text service delivers the best results

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

External resources

• Text Processing with KNIME
• Audio file source