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The Qualification of Loudspeaker Directivity Factor in Sound Reinforcement System Design

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Increasingly accurate results attend the field measurements of critical distance. Multipliers and divisors of critical distance have been sufficiently identified to allow usable correlation between the proposed anechoic chamber method and the semi-reverberant field measurements. Various anomolies regarding geometric Q, maximum Q, relative Q, and a will be discussed. A more usable critical distance equation will be presented. A product goal evolved from these techniques will be suggested.

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