Sound-level measurements in rooms containing speaker systems provide interesting and important data not obtainable from electrical measurements or listening tests alone. This paper discusses techniques of obtaining relatively smooth and reproducible -requency-response curves under typical home room conditions, using a new ultra-miniature sound-level meter. Curves thus taken will be presented for an adjustable bass reflex unit with and without absorbent material.
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https://aes2.org/publications/elibrary-page/?id=112
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