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US 5,983,176 AGranted
Evaluation of media content in media files
AssigneeMagnifi, Inc.
InventorsEric M. Hoffert, Karl Cremin, Leo Degen
Life of this patent
Estimating the term…
Abstract
A method and apparatus for searching for multimedia files in a distributed database and for displaying results of the search based on the context and content of the multimedia files.
Claims15
A method of determining if an audio file comprises music or speech comprising the steps:
- examining time slices of said audio file to determine amplitude changes with time during each time slice;
- classifying said audio file as music or speech based on said amplitude changes.
A method of analyzing audio file content comprising:
- a) dividing said audio file into time segments of a predetermined size;
- b) computing values of normalized amplitude deviation with time during each time segment;
- c) averaging the normalized amplitude deviation values to compute a music speech metric;
- and
- d) assessing whether the audio file represents music or speech based on the music-speech metric value.
2 more elements
A method of assessing the volume of an audio file comprising the steps of:
- a) dividing said audio file into time slices;
- b) computing the average amplitude AVG-AMPLITUDE for each time slice;
- c) computing the average of the AVG-AMPLITUDE to provide a metric;
- d) assessing a volume level based on said metric.
1 more element
A method of analyzing content of an audio file comprising the steps of:
- a) assessing whether said audio file represents music or speech by examining slices of said audio file to determine amplitude changes with time during the time slice and classifying said audio file as music or speech based on said amplitude changes;
- b) assessing a volume level of said audio file.
Dependencies are inferred from the claim text.