pyflink.multimodal.expression.AudioExpressionAccessor.silence_detection#

AudioExpressionAccessor.silence_detection(*, threshold_db: float, min_silence_ms: int = 0, concurrency: Optional[int] = None) → pyflink.table.expression.Expression[source]#

Detect low-amplitude silence ranges in waveform values.

Equivalent to audio_silence_detection(). See that function for full parameter details.

Parameters

threshold_db – Silence threshold in dBFS. Must be <= 0.
min_silence_ms – Minimum silence range length in milliseconds.
concurrency – Optional execution concurrency for this operation. None uses the framework default.

Returns

A DataFrame expression that produces ARRAY<ROW<start_ms, end_ms, duration_ms>> silence ranges.