The Numerically-Identical CD Mystery: A Study in Perception versus Measurement

نویسندگان

  • Ian Dennis
  • Julian Dunn
  • Doug Carson
چکیده

The authors have for some time been involved in an investigation into claims that numericallyidentical CDs can sound noticeably different on replay. It has been suggested that these differences are attributable to variables in certain processes in the CD production chain. The work has centred on the controlled pressing of a set of test CDs encompassing the suspected variations. The discs contain test signals as well as music, so that listening test results can be compared with objective measurements from the same physical discs. This paper describes efforts so far in comparing listening test results with 'conventional' audio measurements. The work is on-going.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Effect of Two Teaching Methods on Nursing Students Perception of Psycho-Social Climate of the Classroom: Jigsaw Puzzle Versus Programmed Lecture

Introduction: Cooperative teaching techniques such as jigsaw technique may encompass positive effects in promoting psycho-social climate of learning environments. The aim of this study was to determine nursing students' perception regarding psycho-social environment of the classroom and investigating the effects of two methods of programmed lecture and jigsaw puzzle in promoting students' perce...

متن کامل

Measurement the heavy metals content (Cd, Ni and Pb) in the muscle tissue of Psettodes erumei and Psettodes erumei of the Qeshm Island (Persian Gulf)

This study conducted to determine the amount of the heavy metals such as Cd, Ni, and Pb in the muscle tissue of Hoof benthic fish (Psettodes erumei) and urban pelagic fish () in Qeshm Island in the north of the Persian Gulf. Overall, the heavy metal content Lethrinus nebulosus of 30 tissue samples was randomly measured by atomic absorption spectrometer. The mean amount of Cd (0.16+ 0.002 ) and ...

متن کامل

Analysis of Persian Gardens using Kaplan’s landscape preference theory (Case study: Fin garden, Shazdeh Mahan garden, Eram Garden & El Goli garden)

A review of findings shows that Persian gardens have attracted a wide area of interests between psychologists and environment designers. The main reasons behind the attraction of Persian gardens are natural content and particular landscape configuration. To study these features, overall organization examination is employed according to psychological pattern. One of the impressive psychological ...

متن کامل

Comparing transcutaneous bilirubin versus serum bilirubin measurement using spectrophotometry for jaundice screening of full-term neonates

Background: Neonatal jaundice is an almost common problem among neonates that may cause complications such as kernicterus in severe cases. Since early diagnosis and proper treatment of neonatal jaundice is vital to prevent the related complications, it is necessary to check bilirubin before discharging the neonates. There are several evaluating and diagnostic methods to measure the level of bil...

متن کامل

Application of the extended solvation theory to study the interaction of β-CD with interpolymer of PEO and PAA

Thermodynamic study on the interaction of β-CD with poly ethylene oxide and poly acrylic acid was performed by isothermal titration calorimetry at 298K. when β-CD is added to the interpolymer complex, competition is created between host-guest and Hydrogen bond. Enthalpy of interaction between the β-CD and interpolymer complex was calculated using the extended solvation theory. P=1 Shows that w...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001