Technical Program
Historical
• Sessions by Industry
Category
• Detailed Calendar
• Convention Planner
• Paper Sessions
• Workshops
• Tutorials
• Master Classes
• Live Sound Seminars
• Exhibitor Seminars
• Special Events
• Student Program
• Historical
• Technical Tours
• Technical Council
• Standards Committee
• Heyser Lecture
|
AES Amsterdam 2008
Historical Event Details Saturday, May 17, 10:00 — 14:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
Saturday, May 17, 14:00 — 15:00
SHANNON, BEETHOVEN, AND THE COMPACT DISC
Moderator:
Kees Schouhamer Immink, Turing Machines Inc. - Rotterdam, The Netherlands
Abstract:
An audio compact disc (CD) holds up to 74 minutes, 33 seconds of sound, just enough for a complete mono recording of Ludwig van Beethoven's Ninth Symphony ("Alle Menschen werden Brüder") at probably the slowest pace it has ever been played, during the Bayreuther Festspiele in 1951 and conducted by Wilhelm Furtwängler. Each second of music requires about 1.5 million bits, which are represented as tiny pits and lands ranging from 0.9 to 3.3 micrometers in length. More than 19 billion channel bits are recorded as a spiral track of alternating pits and lands over a distance of 5.38 kilometers (3.34 miles), which are scanned at walking speed, 4.27 km per hour. This year it is 25 years ago that Philips and Sony introduced the CD. We will discuss the various crucial technical decisions made that would determine the technical success or failure of the new medium.
Saturday, May 17, 15:00 — 16:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
Saturday, May 17, 16:00 — 17:00
ELECTRO ACOUSTIC SLIDE RULE
Moderator:
Peter Swarte
Abstract:
In the transition of the seventies to the eighties in the previous century, the programmable calculators could be applied for the design of a sound reinforcement system. The disadvantage was that you were not in the position to make quick changes in the parameters, e.g., the reverberation time of the room, the directivity factor of the sources, and the speech intelligibility based upon the development work of Peutz as he had published in a paper during the AES convention in 1971, New York.
A slide rule reduces these disadvantages in a dramatically way. By sliding you were able to make an estimation of the results (costs) and the margins you worked in. Peter Swarte will demonstrate some examples of real situations with the help of this slide rule. The results are still valid and based upon the statistical approach of sound in (semi) enclosed rooms.
Furthermore the relationship between several parameters like acoustic power, directivity, diffuse sound, direct sound, absorption, and reverberation are part of the demonstration.
Sunday, May 18, 10:00 — 14:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
Sunday, May 18, 14:00 — 15:00
M3 RECORDING TECHNIQUE
Moderator:
Hans Lauterslager
Abstract:
Hans Lauterslager, retired balance engineer with Polygram-Philips, gives a description of 3-microphone recording technique as applied by Mercury and Philips in the sixties.
Sunday, May 18, 15:00 — 16:00
100 YEAR OF THE TRIODE
Moderator:
Guido Tent
Abstract:
100 years of the Triode is a short journey through the history of electronics, which started in 1907 with the invention of the triode. This lecture gives an overview of how electronics developed, shows a documentary of the (re)making of the triode, and ends with an audio demonstration.
Sunday, May 18, 16:00 — 17:00
VINTAGE LOUDSPEAKERS
Moderator:
Garry Margolis
Abstract:
An informal review of recording studio monitoring practices in North America from the 1950s through the 1970s as seen and heard by a recording engineer who joined a loudspeaker company and learned how studio monitors really work.
Monday, May 19, 10:00 — 14:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
Monday, May 19, 14:00 — 15:00
RECORDING HISTORY
Moderator:
Bert van der Wolf
Abstract:
"The importance of technical specifications of recording equipment, and the sound quality of a recording, in the communication of the Emotion in a recorded Musical Performance . . . and how our brain and ears respond to reproduced acoustical information in several different audio formats."
A personal report of 20 years practical experience in record producing, and development of recording equipment through research of, and fascination for the human audio/music perception.
Monday, May 19, 15:00 — 16:00
COMPACT CASSETTE
Moderator:
Willem Andriessen
Abstract:
The "Compact Cassette," an incredible succes story with an incredible sudden end. The technical and market environment in the late fifties and early sixties, which led to its birth, its technical and product development over the years, its impact on magnetic tape development, its "explosive" marketing development, its rivals, such as "C international, Elcassette, Microcassette, DAT, and DCC and at last its ultimate killing factor: the total integrated digitizing of private and personal audio consumption, thanks to CDR for "downloading" and MP3 for "ideal" portability and mobility will be discussed by Willem Andriessen, a retired tape specialist at BASF.
Monday, May 19, 16:00 — 17:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
Tuesday, May 20, 10:00 — 12:00
HIST. COM. MEETING
Tuesday, May 20, 12:00 — 13:00
HISTORICAL CAFE
Abstract:
In the historical Café there will be on display a selection of vintage CD and compact cassette equipment from the early days; a book selection of vintage acoustic matters; a Slide Rule used for electro acoustical calculations; samples of triode applications; and more! Come and browse.
|
