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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: EXACTLY posted by gkirkos on June 16, 2015 at 11:01:18:
My goal is a realistic reproduction of the experience of listening to live acoustic music in a concert hall, recital hall or jazz venue. The recording will provide an acoustic perspective as to the size of the hall and the listener's position. Were the listener to listen to an actual (or imagined) concert from that position, he would hear a range of volume levels (from ppp to FFF) and tonalities as produced by the musicians playing their instruments. Realistic reproduction requires that the volume and tonality the listener perceives from his listening position match what he would have heard in the (real or imagined) live performance, whether the musicians are playing loud or soft.
The psycho-acoustic effects on tonal balance of volume do not come into play if the volume levels are correctly matched, because the volume related hearing sensitivity would be the same for both the live and the reproduced music. If the combination of record equalization and playback equalization match and the listener adjusts his volume control correctly then he will get a level of realism throughout the entire recording.
There are two provisos. First the recording must be undistorted and uncompressed, so that a constant volume control setting will apply throughout the entire recording. Second, the playback chain must be capable of undistorted output of the full range of musical sounds produced by the instruments at the required volume levels. If these are not met, then realism is hopeless and the recording and/or playback system are not suitable for anything but background music. In this regard, a system that is adequate for realistically reproducing solo harpsichord music may not be able to reproduce organ music recorded in a large cathedral or a Mahler symphony in a large concert hall.
I have found that playback systems that use stepped volume controls with 2 dB (or larger) steps do not permit sufficiently accurate matching of levels for many recordings. Volume differences of about 0.5 dB are audible, so a stepped volume control with 1 dB steps is (barely) adequate in this regard. Frequency response differences in the amount of 0.5 dB (or less) are readily audible over various frequency bands. The traditional bass and treble tone controls lack sufficient flexibility to correct errors in recording equalization or speaker and room response, among other reasons because two knobs are not enough.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- Realistic reproduction requires correct playback volume - Tony Lauck 07:10:50 06/17/15 (0)
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