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

Perceiving Loudness, Pitch, and Location

Perceiving Loudness, Pitch, and Location

The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...

Unsoundness of Aggregate due to Volume Change

Unsoundness of Aggregate due to Volume Change

Unsoundness in aggregates due to volume changes is primarily caused by the physical alterations aggregates undergo, such as freezing and thawing, thermal changes, and wetting and drying. Unsound aggregates, when subjected to these changes, result in volume change upon disintegration. This, in turn, contributes to the deterioration of concrete, including scaling, pop-outs, and cracking. Particular types of aggregates, such as porous flints, cherts, and those containing clay minerals, are...

Downsampling

Downsampling

When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...

Improving Translational Accuracy

Improving Translational Accuracy

Sound Intensity Level

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...

Upsampling

Upsampling

Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...

You might also read

Related Articles

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

Sort by

Same author

As group size increases, individuals modify their vocal features to signal cooperation while remaining recognizable.

Frontiers in psychology·2026

Same author

A multimodal speech-production dataset with time-aligned articulography, EEG, audio, and vocal-tract anatomy.

Scientific data·2026

Same author

Vocal-tract length estimation from vowel formants benchmarked against acoustic pharyngometry.

The Journal of the Acoustical Society of America·2026

Same author

Impaired Self-Other Voice Discrimination in Patients with Auditory-Verbal Hallucinations and Nonclinical Hallucination Proneness.

Schizophrenia bulletin·2026

Same author

Implicit voice learning through discrimination outperforms explicit listen-and-memorize tasks.

Scientific reports·2026

Same author

Acoustic and Perceptual Differences of <i>Aegyo</i> Speaking Style Across Gender in Seoul Korean.

Language and speech·2025

Search research articles

Related Experiment Video

Updated: Jul 12, 2025

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Acoustic compression in Zoom audio does not compromise voice recognition performance.

Valeriia Perepelytsia¹, Volker Dellwo²

¹Department of Computational Linguistics, University of Zurich, Andreasstrasse 15, 8050, Zurich, Switzerland. valeriia.perepelytsia@uzh.ch.

Scientific Reports

|November 1, 2023

Summary

Video conferencing audio quality, like Zoom, is as effective as studio audio for human voice recognition, outperforming lower-quality telephone audio. Familiarization with Zoom audio may even slightly improve voice recognition performance.

More Related Videos

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

Related Experiment Videos

Last Updated: Jul 12, 2025

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

Area of Science:

Speech processing
Human-computer interaction
Acoustic signal analysis

Background:

Human voice recognition accuracy is typically reduced over telephone channels compared to studio recordings.
Lossy compression in video conferencing affects audio quality and potentially voice recognition performance.

Purpose of the Study:

To investigate how video conferencing audio quality impacts human voice recognition.
To compare voice recognition performance across telephone, Zoom, and studio audio conditions.

Main Methods:

An old-new voice recognition task was employed.
Participants were familiarized with female voices in studio, Zoom, or telephone quality audio.
Voice recognition tests were conducted under matched and mismatched audio familiarization and testing conditions.

Main Results:

Voice recognition performance in Zoom audio was not significantly different from studio audio.
Both Zoom and studio audio yielded significantly better recognition than telephone audio.
Familiarization with Zoom audio showed a trend towards improved recognition performance compared to studio audio.

Conclusions:

Zoom's audio processing provides relevant information for voice recognition, comparable to studio quality.
Telephone audio quality significantly hinders voice recognition performance.
Further research may explore specific speech coding mechanisms in Zoom that could enhance voice recognition.