WHAT'S IN A NAME?
83dB
SPL (Signal Pressure Level) is the Magic Number relating to
Monitor calibration as outlined in the SMPTE RP 200 standard
for Relative & Absolute Sound Pressure Levels for Motion-Picture
Multi-Channel Sound Systems.
This
standard is the reason why movies have a consistent average
level coupled with a wide dynamic range.
With
such a standard in place a client or consumer does not have
to adjust the Gain control on their sound reproduction system
from one movie to the next.
Unfortunately,
there is no equivalent standard adopted by the Music Industry.
Music
Recordings vary considerably and level problems are further
exasperated by unwitting (over) use of of Compressors and Peak
Limiters especially in widespread home studio production.
Such
productions have a "louder is better" mentality. The
loudness is achieved at the expense of dynamic range and more
importantly at the expense of quality.
Further
inconsistencies are notable in TV Broadcast & Advertising.
Therefore,
83dB was chosen to generate awareness and consideration for
a more standardized protocol for Audio Levels external to the
Movie Industry.
Dynamic
Range is a priority. However, if you want it LOUDER than the
competition - No problem! |
