Sideways cushioning
Sideways attenuation is a term that can be found in the microphone data of directional microphones. The specification is the attenuation that is measured from the side of the microphone , i.e. from the 90 ° direction of sound incidence, and is specified in decibels (dB) as the sound level attenuation . A high level of lateral attenuation also ensures good feedback suppression when loudspeakers are exposed to sound from this direction of incidence. Is common in large diaphragm microphones and small diaphragm microphones of the directional characteristic supercardioid at 1 kHz sideways attenuation of greater than 8.7 dB. The sideways attenuation is always frequency-dependent. With a wide cardioid, the side attenuation is around 3.5 dB.
The term backward attenuation for the microphone can also be classified here . That is the sound level attenuation 180 ° to the direction of sound incidence.
With directional antennas there is also the side attenuation, which, in addition to the antenna gain, is an important parameter in antenna technology.
literature
- Michael Dickreiter , Volker Dittel, Wolfgang Hoeg, Martin Wöhr (eds.), "Handbuch der Tonstudiotechnik", 8th, revised and expanded edition, 2 volumes, publisher: Walter de Gruyter, Berlin / Boston, 2014, ISBN 978-3- 11-028978-7 or e- ISBN 978-3-11-031650-6 .
- Communication technology part 1 Basics of radio frequency. 1st edition, Institute for the Development of Modern Teaching Methods e. V., Bremen, 1980
- Norbert Pawera: Microphone Practice . 4th edition, Franzis Verlag GmbH, Munich, 1993, ISBN 3-932275-54-3