Sound Level Meter

Posted by SMR [WizOp] [IP: 194.128.83.228] on February 28, 1999 at 14:21:23
Using Mozilla/4.5 [en] (Win98; I):

In Reply to: Sound Level Meter posted by Joe on February 27, 1999 at 22:06:18:

Joe,

To use an SPL meter correctly you need a source of test noise (usually pink or white noise). All Dolby Digital and Pro-logic processors provide such noise and when calibrating the output should be 75dB from all channels. In a matrix system both rear loudspeakers playing together should be 75dB. Test tones are also available from CD, DVD and laserdisc.

If low frequencies aren't involved, an SPL meter should be set to A-Weighting, Slow mode - if low frequencies are involved then one should use C-Weighting. The meter should be at your listening position and pointed in a neutral direction (such as towards the ceiling).

Stuart.

Follow Ups:

• Sound Level Meter - Scott Avery 14:26:45 03/01/99 (2)
  • Sound Level Meter - Scott Avery 22:14:34 03/01/99 (1)
    • Sound Level Meter - SMR [WizOp] 00:22:02 03/02/99 (0)

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