Browse Prior Art Database

Scan System for Audio Tape

IP.com Disclosure Number: IPCOM000045555D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Zingher, AR: AUTHOR

Abstract

This article describes a system for intelligently selecting and conveniently playing parts of a long audio recording. During the original recording process, the user marks selected segments of the speech as highlights". During review, the system "skims" over the tape and plays just these highlights. If the reviewer specially selects a particular highlight, only then will the system play a longer adjacent speech segment.

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Scan System for Audio Tape

This article describes a system for intelligently selecting and conveniently playing parts of a long audio recording. During the original recording process, the user marks selected segments of the speech as highlights". During review, the system "skims" over the tape and plays just these highlights. If the reviewer specially selects a particular highlight, only then will the system play a longer adjacent speech segment.

A control is used which is coupled to the tape recorder. Just after a noteworthy speech segment is heard, the user activates the control, which adds an audible "highlight mark" to the recording input.

A "scanning" process plays these highlights to the reviewer, so the can select which parts of the speech he wants to play in detail. First, the system plays forward much faster than normal. The output is fed to an acoustical mark detector. When it detects a highlight mark, the system briefly rewinds the tape. Then it plays a brief speech segment. If the reviewer does not intervene, then the system iterates this process. If the reviewer activates a control while the highlight is being played, then the system backs up further and plays a larger speech segment. For example, the system rewinds as long as the control is activated, then plays forward while it is released, and resumes skimming when it is momentarily reactivated by the reviewer.

An extra pass in reverse can be employed between the recording pass and the reviewing p...