Audio evaluation of information stored on a record medium under

Details Audio evaluation of information stored on a record medium under Audio evaluation of information stored on a record medium under

1986-01-13

1988-07-05

Cardillo, Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358342, 369 58, 360 25, 360 31, 360 143, 360 722, H04N 1706, G11B 2730, G11B 2736

Patent

active

047558849

ABSTRACT:
Method and apparatus for evaluating the audio characteristics of an audio-video program recorded on a storage member in which the video portion of the program contains picture frame code numbers. A predetermined picture frame number at which video evaluation of the audio portion of the program is to commence in initially established. The audio and video portions of the recorded audio-video program are recovered, and the picture frame code numbers are extracted from the video portion thereof. The extracted picture frame numbers from the recovered video portion are then compared with the predetermined picture frame number, and audio evaluation of the audio portion of the program commences upon coincidence of the detected picture frame number and the predetermined picture number. Evaluation is effected by measuring predetermined picture number. Evaluation is effected by measuring predetermined audio characteristics of the recovered audio portion and comparing the measured characteristics with corresponding audio reference characteristics.

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Hewlett Packard Spectrum Analyzer, Model 3582A, Dual-Channel, Real-Time Spectrum Analysis and Transfer Function Measurements, Technical Data Apr. 1978.

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