31st AES International Confc, 2007 "New Directions in High Resolution Audio"

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knutinh

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31st AES International Confc, 2007 "New Directions in High Resolution Audio"

Liste over påmeldte paper, inklusive ett med forum-guru Ivar:

http://www.aes.org/events/31/program.htm

Paper Session 2 — Perception

"2-1 Which of the Two Digital Audio Systems Meets Best with the Analog System?— Wieslaw Woszczyk,1 Jan Engel,2 John Usher,1 Ronald Aarts,3 Derk Reefman3
1McGill University, Montreal, Quebec, Canada
2Centre for Quantitative Methods CQM BV
3Philips Research, Eindhoven, The Netherlands"

"2-3 Audio Quality on the Air in DAB Digital Radio in Norway—Sverre Holm, University of Oslo, Oslo, Norway

We have analyzed the audio quality as recorded on the air for stations in the Norwegian DAB network. When the capacity is fully utilized, most stations with music transmit at a capacity of 128 kbps using MPEG1 layer II audio coding. By analyzing the mono component and the stereo component we have found that the audio is characterized. by a smeared stereo image due to the use of the heaviest from of joint stereo coding. There is also a lack of treble as the upper limit is usually 14 kHz. The result is a loss of brightness and a veiled sound stage which is particularly noticeable to young people.
"

"Paper Session 3 — Processing, Manipulation, and Preparation of High-Resolution Signals
3-1 Segmented Dynamic Element Matching using Delta-Sigma Modulation—Ivar Løkken, Anders Vinje, Trond Sæther, Norwegian University of Science and Technology, Trondheim, Norway

In multibit delta-sigma digital-to-analog converters (DACs), the distortion from physical element mismatch can be spectrally shaped using dynamic element matching (DEM). A problem with all DEM schemes is that the complexity increases very rapidly with the number of levels in the DAC. To reduce DEM complexity for DACs with many bits, DEM segmentation using a dedicated segmentation delta-sigma modulator (DSM) has previously been suggested. Published segmentation DSMs have usually been first-order error feedback designs, to maximize the DEM complexity reduction and to minimize the analog overhead. In this paper high-order segmentation DSMs will be investigated and improved solutions proposed."





-k
 

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31st AES International Confc, 2007 "New Directions in High Resolution Audio"

Det er et spennende program.

Har du tenkt å dra, Knut?
 

atonal

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31st AES International Confc, 2007 "New Directions in High Resolution Audio"

Persepsjonspsykologien innen lyd- og musikkopplevelse tror jeg er et undervurdert område for hififolk.
 

Bx

Bransjeaktør
Ble medlem
04.08.2005
Innlegg
5.196
Antall liker
1.429
31st AES International Confc, 2007 "New Directions in High Resolution Audio"

atonal skrev:
Persepsjonspsykologien innen lyd- og musikkopplevelse tror jeg er et undervurdert område for hififolk.
Sant nok. Men noen ganger har jeg på følelsen at det er overvurdert også ;D ;D

Atonal: Er du fan av Shönberg?
 

atonal

Hi-Fi freak
Ble medlem
14.09.2006
Innlegg
3.213
Antall liker
365
Sted
Friedrichstadt
31st AES International Confc, 2007 "New Directions in High Resolution Audio"

Bx skrev:
atonal skrev:
Persepsjonspsykologien innen lyd- og musikkopplevelse tror jeg er et undervurdert område for hififolk.
Sant nok. Men noen ganger har jeg på følelsen at det er overvurdert også ;D ;D

Atonal: Er du fan av Shönberg?
Har dessverre ikke hørt så mye av Schönberg, så "fan" passer nok ikke (ennå) ;)
 
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