Da ich es langsam leid bin, mich hier einen Subjektivisten nennen zu lassen (vor allem von Leuten, die gar nicht wissen, was das ist - wie pelmazos Einteilung seiner Zeitgenossen in Subjektivisten und Rationalisten zeigt) und gleichzeitig von der Technikfraktion keinerlei input zum gerne bemühten "Stand der Wissenschaft" kommt, werde ich mich jetzt selbst drum kümmern. Gerade sind mir diese beiden Abstracts untergekommen:
Audio Capacitors. Myth or Reality?
This paper gives an account of work carried out to assess the effects of metallised film polypropylene crossover capacitors on key sonic attributes of reproduced sound. The capacitors under investigation were found to be mechanically resonant within the audio frequency band, and results obtained from subjective listening tests have shown this to have a measurable effect on audio delivery. The listening test methodology employed in this study evolved from initial ABX type tests with set program material to the final A/B tests where trained test subjects used program material that they were familiar with. The main findings were that capacitors used in crossover circuitry can exhibit mechanical resonance, and that maximizing the listener’s control over the listening situation and minimizing stress to the listener were necessary to obtain meaningful subjective test results.
Authors: Dodds, Paul, Duncan, Philip, Williams, Nigel
Affiliations: University of Salford
ndustrial Capacitors Wrexhamndustrial Capacitors Wrexham(See document for exact affiliation information.)
AES Convention:124 (May 2008) Paper Number:7314 Permalink Import into BibTeX
Sampling Rate Discrimination: 44.1 kHz vs. 88.2 kHz
It is currently common practice for sound engineers to record digital music using high-resolution formats, and then down sample the files to 44.1kHz for commercial release. This study aims at investigating whether listeners can perceive differences between musical files recorded at 44.1kHz and 88.2kHz with the same analog chain and type of AD-converter. Sixteen expert listeners were asked to compare 3 versions (44.1kHz, 88.2kHz and the 88.2kHz version down-sampled to 44.1kHz) of 5 musical excerpts in a blind ABX task. Overall, participants were able to discriminate between files recorded at 88.2kHz and their 44.1kHz down-sampled version. Furthermore, for the orchestral excerpt, they were able to discriminate between files recorded at 88.2kHz and files recorded at 44.1kHz.
Authors: Pras, Amandine; Guastavino, Catherine
Affiliation: McGill University, Montreal, Quebec, Canada
AES Convention:128 (May 2010) Paper Number:8101 Permalink Import into BibTeX
In ein paar Tagen hab ich die beiden papers auf dem Tisch. Ich kann den Volltext hier leider nicht einstellen (copyright), gehe aber davon aus, dass unsere versierten und belesenen Forentechniker ohnedies einen entsprechenden Zugang haben.
lg
reno
PS: Ich hab keine Ahnung, wie die beiden Smileys da rein kommen...
Audio Capacitors. Myth or Reality?
This paper gives an account of work carried out to assess the effects of metallised film polypropylene crossover capacitors on key sonic attributes of reproduced sound. The capacitors under investigation were found to be mechanically resonant within the audio frequency band, and results obtained from subjective listening tests have shown this to have a measurable effect on audio delivery. The listening test methodology employed in this study evolved from initial ABX type tests with set program material to the final A/B tests where trained test subjects used program material that they were familiar with. The main findings were that capacitors used in crossover circuitry can exhibit mechanical resonance, and that maximizing the listener’s control over the listening situation and minimizing stress to the listener were necessary to obtain meaningful subjective test results.
Authors: Dodds, Paul, Duncan, Philip, Williams, Nigel
Affiliations: University of Salford
ndustrial Capacitors Wrexhamndustrial Capacitors Wrexham(See document for exact affiliation information.)AES Convention:124 (May 2008) Paper Number:7314 Permalink Import into BibTeX
Sampling Rate Discrimination: 44.1 kHz vs. 88.2 kHz
It is currently common practice for sound engineers to record digital music using high-resolution formats, and then down sample the files to 44.1kHz for commercial release. This study aims at investigating whether listeners can perceive differences between musical files recorded at 44.1kHz and 88.2kHz with the same analog chain and type of AD-converter. Sixteen expert listeners were asked to compare 3 versions (44.1kHz, 88.2kHz and the 88.2kHz version down-sampled to 44.1kHz) of 5 musical excerpts in a blind ABX task. Overall, participants were able to discriminate between files recorded at 88.2kHz and their 44.1kHz down-sampled version. Furthermore, for the orchestral excerpt, they were able to discriminate between files recorded at 88.2kHz and files recorded at 44.1kHz.
Authors: Pras, Amandine; Guastavino, Catherine
Affiliation: McGill University, Montreal, Quebec, Canada
AES Convention:128 (May 2010) Paper Number:8101 Permalink Import into BibTeX
In ein paar Tagen hab ich die beiden papers auf dem Tisch. Ich kann den Volltext hier leider nicht einstellen (copyright), gehe aber davon aus, dass unsere versierten und belesenen Forentechniker ohnedies einen entsprechenden Zugang haben.
lg
reno
PS: Ich hab keine Ahnung, wie die beiden Smileys da rein kommen...
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