本帖最后由 交响无际 于 2024-10-7 14:13 编辑
不过,即使在把房间声学校准,称为“It is an enticing marketing story. 这是一个诱人的营销故事”的Floyd Toole这篇AES研究文献中,The Measurement and Calibration of Sound Reproducing Systems
https://aes2.org/publications/elibrary-page/?id=17839
还是有这样一句表述的,In small rooms, in-situ measurements are necessary at low frequencies because of standing-waves, and remedial measures will almost certainly be necessary.
在小房间中,由于驻波,对低频进行现场测量是必要的,而且几乎肯定需要采取补救措施。
超低频、低频,用传统的IIR型EQ,压一压,是没什么问题的。文献里有这样的表述,Because they are minimum-phase phenomena in transducers the resonances can be attenuated by using matched parametric filters, thereby correcting both the amplitude and time-domain problems.
For anechoic descriptions of loudspeakers and for low-frequency measurements in rooms, high resolution (e.g., 1/20-octave) is needed to reveal and characterize audible problems, particularly resonances, and to permit correction by parametric equalization.
Floyd Toole先生在AVS论坛里提过,https://www.avsforum.com/threads/jbl-m2-master-reference-monitor.1454077/page-215?post_id=57293354#post-57293354
“It is useful if the EQ algorithm can be disabled at frequencies above about 400-500 Hz.”
大概400~500Hz以上,就不要再用EQ调整了吧。
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