Version: 1.0

Posted: 2006-01-25

Build Requirements: Xcode 2.2, MacOSX10.4u.sdk

Runtime Requirements: Mac OS 10.4.x, QuickTime 7

View Source Code:

Download Sample (“SillyFrequencyLevels.zip”, 159.5K)
Download Sample (“SillyFrequencyLevels.dmg”, 222.3K)


Description

SillyFrequencyLevels is a simple demonstration of the new QuickTime Audio APIs to obtain real-time measurements of the average audio output power level in one of more frequency bands.

This sample specifically uses the SetMovieAudioFrequencyMeteringNumBands and GetMovieAudioFrequencyLevels APIs.

This project builds a Universal Binary application.

Document Revision History

Date Notes
2006-01-25Demonstrates how to obtain audio frequency levels from a Movie using SetMovieAudioFrequencyMeteringNumBands and GetMovieAudioFrequencyLevels APIs.

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