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  1. IRE Transactions on Audio
  2. Year : 1956 Volume : AU-4
  3. Issue 4
  4. Stereo reverberation
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Year : 1962 Volume : 10
Year : 1961 Volume : AU-9
Year : 1960 Volume : AU-8
Year : 1959 Volume : AU-7
Year : 1958 Volume : AU-6
Year : 1957 Volume : AU-5
Year : 1956 Volume : AU-4
Issue 6
Issue 5
Issue 4
PGA Award certificates
Report of the IRE-PGA awards committee, 1955-1956
PGA Chapter activities
Membership - income - expense graph
Participation in the second international congress on acoustics
With other acoustical and audio societies
Letters to the Editor
List of published standards that may be applied to high fidelity equipment
The use of transistors in airborne audio equipment
Engineering consideration of ceramic phonograph pickups
Stereo reverberation
Issue 3
Issue 2
Issue 1
Year : 1955 Volume : AU-3

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Stereo reverberation

Content Provider IEEE Xplore Digital Library
Author Vermeulen, R.
Copyright Year 1955
Abstract Investigating the reasons why reproduced music gives an impression different from that which a listener receives during a concert, it was found that the distribution of the sound over the room is essential. Although stereophonic reproduction can give a sufficiently accurate imitation of an orchestra, it is necessary to imitate also the wall reflections of the concert hall, in order that the reproduction may be musically satisfactory. This can be done by means of several loudspeakers, distributed over the listening room, to which the signal is fed with different time-lags. The diffused character of the artificial reverberation thus obtained seems to be even more important than the reverberation time. Likewise, when a live orchestra is playing in an acoustically unsatisfactory hall (e.g., a theater), the diffuseness of the sound field and the reverberation time may both be improved by picking up the music by means of a directional microphone and repeating it through loudspeakers with different retardations. The audience does not experience the improvement consciously and ascribe it to the orchestra playing better. The performers, however, are aware of the change in the acoustics as making the hall more playable.
Starting Page 98
Ending Page 105
Page Count 8
File Size 1595188
File Format PDF
ISSN 00961981
Volume Number AU-4
Issue Number 4
Language English
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date 1956-01-01
Access Restriction Subscribed
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword Reverberation Speech Music Loudspeakers Acoustic reflection Microphones Electronics packaging Acoustic waves Delay
Content Type Text
Resource Type Article
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