A warble tone is used in sound-field testing with loudspeakers to minimize the chance of

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Warble tones are used in sound-field testing with loudspeakers because they help minimize the risk of constructive and destructive interference problems. These problems can occur when a specific frequency of sound coincides with the dimensions of the room, causing the sound waves to either amplify or cancel each other out in different parts of the room. By using a warble tone, which involves rapidly alternating between multiple frequencies, the risk of interference issues can be reduced.

A Warble Tone Is Used in Sound-Field Testing with Loudspeakers