Kalibrierung von Audio Systemen, insbes. im Mittel-/Hochton
Verfasst: 24.01.2016, 17:44
Hallo zusammen,
als Ergänzung in diesem Zusammenhang noch ein recht aktuelles Paper vom August 2015:
Floyd Toole, "The Measurement and Calibration of Sound Reproducing Systems"
Journal of the Audio Engineering Society
Vol. 63, No. 7/8, July/August 2015
https://secure.aes.org/forum/pubs/journal/?ID=524
Zitat aus Abschnitt 3.6 "Looking at Alternative Calibration Methods", S.525:
"From the beginning, loudspeakers intended for sound
reproduction have been designed with the goal of a flat onaxis
frequency response so that the first sound to arrive is
an accurate representation of the spectrum of the recorded
sound. Double-blind subjective evaluations of loudspeakers
conducted by the author and his colleagues for 35 years
have shown consistent preference for those having flat and
smooth on-axis frequency response, accompanied by wellbehaved
off-axis response—i.e., a smoothly changing or
constant directivity index ([1] chapter 18). Changing the
room has little effect on this observation ([1] section 11.3.1).
Based on this, a generalizable performance standard for
sound reproduction systems would require a loudspeaker
that radiates a flat, smooth, direct sound, and that has gradually
changing or constant directivity."
Zitat aus Abschnitt 8 "Discussions and Conclusions", S. 538:
"If the goal is good sound it is hard to escape
the notion that the starting point for a calibration scheme
is free-field data on the loudspeakers. A minimum data set
would consist of descriptions of direct sound (on axis and/or
listening window) and total radiated sound power and/or directivity
index. The target for the direct sound should most
likely be flat: neutral. As shown in Fig. 19(c), in “typical”
cinemas and home listening rooms such loudspeakers
should deliver predictably good sound over the mid-to-high
frequency range with no intervention. No “calibration”
may be necessary beyond compensating for screen loss in
cinemas."
Hervorhebungen stammen von mir.
Grüße Oliver
als Ergänzung in diesem Zusammenhang noch ein recht aktuelles Paper vom August 2015:
Floyd Toole, "The Measurement and Calibration of Sound Reproducing Systems"
Journal of the Audio Engineering Society
Vol. 63, No. 7/8, July/August 2015
https://secure.aes.org/forum/pubs/journal/?ID=524
Zitat aus Abschnitt 3.6 "Looking at Alternative Calibration Methods", S.525:
"From the beginning, loudspeakers intended for sound
reproduction have been designed with the goal of a flat onaxis
frequency response so that the first sound to arrive is
an accurate representation of the spectrum of the recorded
sound. Double-blind subjective evaluations of loudspeakers
conducted by the author and his colleagues for 35 years
have shown consistent preference for those having flat and
smooth on-axis frequency response, accompanied by wellbehaved
off-axis response—i.e., a smoothly changing or
constant directivity index ([1] chapter 18). Changing the
room has little effect on this observation ([1] section 11.3.1).
Based on this, a generalizable performance standard for
sound reproduction systems would require a loudspeaker
that radiates a flat, smooth, direct sound, and that has gradually
changing or constant directivity."
Zitat aus Abschnitt 8 "Discussions and Conclusions", S. 538:
"If the goal is good sound it is hard to escape
the notion that the starting point for a calibration scheme
is free-field data on the loudspeakers. A minimum data set
would consist of descriptions of direct sound (on axis and/or
listening window) and total radiated sound power and/or directivity
index. The target for the direct sound should most
likely be flat: neutral. As shown in Fig. 19(c), in “typical”
cinemas and home listening rooms such loudspeakers
should deliver predictably good sound over the mid-to-high
frequency range with no intervention. No “calibration”
may be necessary beyond compensating for screen loss in
cinemas."
Hervorhebungen stammen von mir.
Grüße Oliver