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Home Recording Studio: Build It Like the Pros, Second Edition by Rod Gervais

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Appendix . Glossary of Terms

A

A-B test

A test between two objects. For example, a test between two different microphones or preamps. For the test to be scientifically valid, levels should be matched, and the tests should be performed in a double-blind controlled environment. See double-blind.

absorption

In acoustics, the reduction in sound-pressure levels through the conversion of sound energy to heat captured within an acoustic attenuator. The opposite of reflection.

absorption coefficient

A measurement of sound energy reduction absorbed into or passed through a material. Measurement values range from 0 to 1 (which translates to 0% through 100%) and may vary with any particular material based on frequency and angle of incidence of the sound. This ...

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