Results
Positive amplitude asymmetry means a larger upper excursion. Positive duration asymmetry means a longer ascent. These describe shape, not vocal quality.
Detected/selected vibrato region is highlighted.
Gaps indicate missing F0. Triangles indicate points outside the displayed scale.
ROI: automatic vibrato region. Drag across the F0 plot to select a stable manual ROI.
For singing passages, drag across the most stable part of the vibrato if the automatic region includes onset, offset, or non-vibrato material.
Vibrato dynamics · Pabon
Auxiliary analysis of the measured vibrato. Select a stable note with the F0 plot ROI.
The envelope correction assumes locally sinusoidal modulation. Envelope and cycle half-extent can differ for asymmetric shapes.
Lower shape deviation means more similar normalized cycles. Fixed asymmetry can repeat regularly. Inspect F0 tracking quality; this is supplementary to Core FM-Web.