NDLI: Application of the phase vocoder to pitch-preserving synchronization of an audio stream to an external clock

Content Provider	IEEE Xplore Digital Library
Author	Sussman, R. Laroche, J.
Copyright Year	1999
Description	Author affiliation: Joint E-mu/Creative Technol. Center, Scotts Valley, CA, USA (Sussman, R.)
Abstract	The phase vocoder is usually presented as a high-quality solution for time-scale modification of signals, Its main advantages versus the cheaper time-domain techniques include the high-quality of the output for a wide range of types of input signals (speech, music, noise), and the possibility to perform very large factor modifications (e.g., four-fold time-stretching or more). In this paper, we present two applications that require such extreme modification factors: we call the first one pitch-preserving audio scrubbing, in which a user can move a pointer along an audio track and hear the sound at the corresponding location without any pitch alteration. Because the user controls the playback location (and therefore the playback speed), and can very well stop at a given location, the required time-scale modification can involve a very large-factor. The second application consists of synchronizing an audio stream to a video stream, while avoiding pitch alteration. For extreme slow-motion playback, the time-scaling operation required to preserve the pitch can also involve a very large factor. We address theoretical and practical issues related to pitch-preserving synchronization of an audio track. Techniques are discussed to allow freezing time in the phase-vocoder and avoid problems associated with very large factor modifications.
Starting Page	75
Ending Page	78
File Size	283255
Page Count	4
File Format	PDF
ISBN	0780356128
DOI	10.1109/ASPAA.1999.810853
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vocoders Streaming media Clocks Synchronization Audio recording Time domain analysis Speech enhancement Multiple signal classification Acoustic noise Digital-analog conversion
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Application of the phase vocoder to pitch-preserving synchronization of an audio stream to an external clock (1999).

An object oriented generic audio coding architecture

A linear predictive vocoder with new pitch extraction and exciting source

On clock synchronization for multi-microphone speech processing in wireless acoustic sensor networks

A framework for the objective evaluation of vocoder speech quality

Multi-stage spectral subtraction for enhancement of audio signals

A new A/V content storage format for recording interactive TV

A robust vocoder with pitch-adaptive spectral envelope estimation and an integrated maximum-likelihood pitch estimator

A joint speech coding-enhancement algorithm for MBE vocoder

Application of the phase vocoder to pitch-preserving synchronization of an audio stream to an external clock

Similar Documents

Application of the phase vocoder to pitch-preserving synchronization of an audio stream to an external clock (1999).

An object oriented generic audio coding architecture

A linear predictive vocoder with new pitch extraction and exciting source

On clock synchronization for multi-microphone speech processing in wireless acoustic sensor networks

A framework for the objective evaluation of vocoder speech quality

Multi-stage spectral subtraction for enhancement of audio signals

A new A/V content storage format for recording interactive TV

A robust vocoder with pitch-adaptive spectral envelope estimation and an integrated maximum-likelihood pitch estimator

A joint speech coding-enhancement algorithm for MBE vocoder

Application of the phase vocoder to pitch-preserving synchronization of an audio stream to an external clock