Category: - SIMPLY, ROOM ACOUSTICS | Back »
Tor Halmrast
Mr Tor Halmrast from Norway had a very interesting lecture about how to measure reverberation time, and how important it is to be a good “cougher”.
Tor works with music and acoustics. When he is on holiday, he often finds interesting rooms what he wants to measure. To measure room acoustic parameters today requires a lot of equipment that you seldom bring with you. That is why Mr Halmrast bought a small Wav-recorder and some balloons.
Mike Barron from the University of Bath, UK, asks himself “when is a concert hall too quiet”? Sound levels in concert halls decrease with distance, but assessment of subjective loudness indicates that loudness judgement is more or less independent of distance from the stage. This leads to the conclusion that listeners compensate their judgement of loudness on the basis of what they see. So people at the back of the hall may compensate for the distance from the source!
Experiencing spaces by listening is the theme of the website "Spaces Speak, Are You Listening”, by Barry Blesser and Linda-Ruth Salter. You’ll find interesting stories from the past and present on aural architecture. It links acoustics and buildings with human beings. You can find a glossary; you can listen to an inspiring lecture on aural architecture (mp3), read articles etc.
Acoustical Society of America produced a position on the use of sound amplification in the classroom. They state that sound amplification should NOT be routinely employed in typical small mainstream classrooms. Additional comments are that sound amplification increases rather than reduces sound levels and good classroom acoustics can be achieved with good architectual design practice. Read more here!
A new book on acoustics was just released – spaces speak, are you listening? Its authors are Barry Blesser (former Professor at MIT and a founder of digital audio) and Linda-Ruth Salter (independent scholar). The authors are bringing together humanistic, technical and aesthetic considerations of aural architecture with an interdisciplinary approach. Areas touch upon are architecture, music, acoustics, evolution, anthropology, cognitive psychology, audio engineering and so on. You can read about and purchased the book here.
- Speech privacy in open plan office asks for reduced sound propagation between workstations.
Link to it! Spread it! Enjoy it.
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- One of the fundamentals of room acoustics. Link to it! Spread it! Enjoy it.
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