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Related Experiment Video

Updated: Sep 4, 2025

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Ripple density resolution dependence on ripple width.

Alexander Ya Supin¹, Olga N Milekhina¹, Dmitry I Nechaev¹

¹Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.

|July 22, 2022

Summary

Narrower ripple width improves ripple density resolution in auditory perception tasks. This finding holds true whether distinguishing between two rippled signals or a rippled and a flat signal.

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Area of Science:

Auditory perception
Psychoacoustics
Signal processing

Background:

Ripple density resolution is a key aspect of auditory processing.
Understanding how signal characteristics influence this resolution is crucial for auditory models.

Purpose of the Study:

To investigate the impact of varying ripple width on ripple density resolution.
To determine how ripple width affects the ability to discriminate between different auditory signals.

Main Methods:

Two experimental paradigms were employed: discrimination between two rippled signals (opposite phases) and discrimination between a rippled and a flat signal.
Ripple width was systematically varied from 9% to 64% of the ripple frequency spacing.

Main Results:

Ripple density resolution was inversely related to ripple width: narrower widths yielded higher resolution.
When distinguishing between two rippled signals, resolution decreased from 15.1 ripples/oct (9% width) to 8.1 ripples/oct (64% width).
When distinguishing a rippled from a flat signal, resolution decreased from 85 ripples/oct (9% width) to 9.3 ripples/oct (64% width).

Conclusions:

Ripple width significantly influences auditory ripple density resolution.
The observed effects can be explained by changes in excitation pattern depth and signal component ratios based on ripple width.