Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Properties of Fourier Transform I

Properties of Fourier Transform I

The application of Fourier Transform properties in radio broadcasting is multifaceted, enabling significant advancements in the way signals are transmitted and received. Key areas where these properties are utilized include simultaneous multi-channel transmission, audio clip speed adjustments, live broadcast delays for different time zones, audio frequency adjustments, and signal demodulation.
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...

Fast Fourier Transform

Fast Fourier Transform

The Fast Fourier Transform (FFT) is a computational algorithm designed to compute the Discrete Fourier Transform (DFT) efficiently. By breaking down the calculations into smaller, manageable sections, the FFT significantly reduces the computational complexity involved. Direct computation of an N-point DFT requires N2 complex multiplications, whereas the FFT algorithm needs only (N/2)log⁡2N multiplications, offering a much faster performance.
The computational efficiency of the FFT becomes...

Discrete Fourier Transform

Discrete Fourier Transform

The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...

Discrete-Time Fourier Series

Discrete-Time Fourier Series

The Discrete-Time Fourier Series (DTFS) is a fundamental concept in signal processing, serving as the discrete-time counterpart to the continuous-time Fourier series. It allows for the representation and analysis of discrete-time periodic signals in terms of their frequency components. Unlike its continuous counterpart, which utilizes integrals, the calculation of DTFS expansion coefficients involves summations due to the discrete nature of the signal.
For a discrete-time periodic signal x[n]...

The Cochlea

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

Perception of Sound Waves

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

[Clinical features and fistula acoustic characteristics in maintenance hemodialysis patients with versus without diabetes mellitus].

Zhonghua yi xue za zhi·2026

Same author

X-linked hypophosphatemic rickets: a rare case report.

Acta orthopaedica Belgica·2026

Same author

[Kidney transplantation in low-age, low-weight children: A report of two cases].

Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences·2025

Same author

[The clinical research of IFNGR1 proximal promoter polymorphism in susceptibility and prognosis of breast cancer].

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2025

Same author

The lipidomic profiling of ovine sperm reveals metabolic alterations and key biomarkers after cryopreservation.

Cryo letters·2025

Same author

Normal tissue complication probability model predicting taste impairment in head and neck cancer patients: Evaluating the taste bud bearing tongue mucosa as a predictor.

Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology·2025

Search research articles

Related Experiment Video

Updated: Jun 10, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Fiber-optic acoustic Fourier transducer for audio sound processing.

G Zhou, L Bintz, D Z Anderson

|August 20, 2010

Summary

This study introduces a novel fiber-optic acoustic transducer. This device uses optical fibers and a novelty filter to detect sound waves, enabling acoustic signal analysis.

Area of Science:

Photonics
Acoustics
Optical Engineering

Background:

Traditional acoustic transducers face limitations in sensitivity and frequency response.
Developing new methods for acoustic signal detection is crucial for various applications.

Purpose of the Study:

To demonstrate a novel fiber-optic acoustic transducer.
To analyze its performance in the audio-frequency regime.
To explore holographic storage of acoustic patterns.

Main Methods:

Utilizing an array of 120 multimode optical fibers as cantilevered mechanical resonators.
Employing a photorefractive novelty filter to extract acoustic information from reflected laser light.
Implementing holographic storage using a LiNbO(3) crystal.

More Related Videos

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

Published on: November 4, 2014

A Stable Phantom Material for Optical and Acoustic Imaging

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Related Experiment Videos

Last Updated: Jun 10, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

Published on: November 4, 2014

A Stable Phantom Material for Optical and Acoustic Imaging

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Main Results:

The fiber-optic acoustic transducer operates effectively in the audio-frequency range (100 Hz to 5 kHz).
The device's output provides a Fourier transform of the acoustic signal.
Background intensity indicates a driving amplitude of approximately 50 A.

Conclusions:

The developed fiber-optic acoustic transducer offers a new approach for acoustic sensing.
The system demonstrates potential for high-fidelity acoustic signal processing and storage.
This technology opens avenues for advanced optical-acoustic hybrid systems.