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Method for Adapting to Specific Audio Encoding Algorithms

IP.com Disclosure Number: IPCOM000040717D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Gaudet, JL: AUTHOR [+3]

Abstract

A method is described which verifies the ability to correctly playback Audio Data since Audio Data may be recorded in a number of incompatible formats. Part of the Audio Descriptor is a parameter called the "encoding/Compression Algorithm ID." This is a mandatory parameter and provides identifiers for all IBM Audio encoding algorithms. Because it is mandatory, the "...Algorithm ID" always appears in the Pass Through control block. The internal processes within other programs that process Audio information may now choose to create and monitor the "Encoding/compression Algorithm ID" parameter. In accordance with the new method, at Audio Note record time, the audio access method observes the algorithm used to record the note.

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Method for Adapting to Specific Audio Encoding Algorithms

A method is described which verifies the ability to correctly playback Audio Data since Audio Data may be recorded in a number of incompatible formats. Part of the Audio Descriptor is a parameter called the "encoding/Compression Algorithm ID." This is a mandatory parameter and provides identifiers for all IBM Audio encoding algorithms. Because it is mandatory, the "...Algorithm ID" always appears in the Pass Through control block. The internal processes within other programs that process Audio information may now choose to create and monitor the "Encoding/compression Algorithm ID" parameter. In accordance with the new method, at Audio Note record time, the audio access method observes the algorithm used to record the note. It properly creates an "Encoding/Compression Algorithm ID" parameter and writes it into the signature provided by the Storage Access Method for each object. This is called the Pass Through control block. At Playback time, the playback process goes to the Pass Through control block and reads the "...Algorithm ID." It compares this to the actual function currently loaded in the system.

If they match, then playback of the audio note is done. If the comparison fails, then the playback process can do one of two things: 1. Refuse to do the playback. Present an explanatory

message to

the operator and end playback process.

2. Change the function that is currently loaded to one

that will

process...