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Acoustic Feature Extractor

StreamableKNIME Audio Processing Nodes version 4.4.0.v202104131247 by KNIME AG, Zurich, Switzerland

Extracts Acoustic features from an audio cell. This node is based on the JAudio library.


Audio Column
The column that contains the audio.
Chunk Size (samples)
The size of a chunk, where the selected features will then be computed in each chunk.
Chunk Overlap (%)
The percentage of overlapping between the chunks.
Aggregation Method
The methods to aggregate the values of the features.
Compute the first and/or second derivative of the features. The formula is based on the delta coefficients calculation denoted here.


Select Features
The list of the supported features. A description for each feature can be found in the dialog, or on the JAudio page.

Input Ports

Table with audio column

Output Ports

Audio table with acoustic features

Best Friends (Incoming)

Best Friends (Outgoing)



To use this node in KNIME, install KNIME Audio Processing from the following update site:


A zipped version of the software site can be downloaded here.

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