for obtaining desired directional characteristic only

Full Title

Details of transducers, > Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purpose H04R5/00) > for obtaining desired directional characteristic only

Child Classifications

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• H04R 1/323
• H04R 1/326
• H04R 1/34 by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 1/40 by combining a number of identical transducers