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Mar 8, 1971 · In 1964 an electronic system (“assisted resonance”) to lengthen the reverberation time over a limited frequency range was installed experimentally in the Royal Festival Hall, London. Following the success of this experimental installation, the frequency range covered was extended (to 58–700 Hz) and the installation made permanent.
- P.H. Parkin, K. Morgan
- 1971
Abstract. An electronic method for lengthening the reverberation times of auditoria has been developed. It is called “assisted resonance” and consists of a large number of microphone-amplifier-loudspeaker “channels” which are so positioned in space and adjusted in amplitude and phase that each one prolongs the reverberation time at one frequency.
- P.H. Parkin, K. Morgan
- 1965
The Building Research Station developed an electronic method of lengthening the reverberation time by a system called 'assisted resonance' in which some of the acoustical energy lost to the surfaces of the hall was replaced by acoustical energy supplied by a loudspeaker.
Semantic Scholar extracted view of "“Assisted resonance” in the Royal Festival Hall, London: 1965–19691☆" by P. H. Parkin et al.
In 1964 an electronic system ("assisted resonance") to lengthen the reverberation time over a limited frequency range was installed experimentally in the Royal Festival Hall, London. Following the success of this experimental installation, the frequency range covered was extended (to 58-700 Hz) and the installation made permanent.
- P.H. Parkin, K. Morgan
- 1971
"Assisted Resonance" in The Royal Festival Hall, London: 1965 1969 Parkin, P. H. Abstract. Publication: Acoustical Society of America Journal . Pub Date: 1970 DOI: 10 ...
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Aug 11, 2005 · The concept of Assisted Resonance was developed by Parkin to meet the need for longer reverberation time at low frequencies in the Royal Festival Hall, London. The work of Schroeder and Kutruff influenced Parkin to believe that an ideal system would have frequency‐selective positive feedback channels at a uniform 3‐Hz interval.
