Radio Shack Sound Level Meter Manuale del Proprietario Scaricare il pdf (Pagina 18)

18

Controls

Depending on the speaker placement,

standing waves might also develop in the

room, giving your system a “peaky”, ec-

centric response.

To determine a room’s acoustics, analyze

the acoustics with your meter and a suit-

able test recording. The test recording

should produce pure tones, one at a time,

at intervals spanning the audio spectrum.

Make a graph or table showing the sound

levels generated by the individual tones.

This gives you a clear idea of the frequen-

cy response of your “total system”—home

theater equipment and room included.

To smooth out the response, adjust the

tone controls and vary the speaker place-

ment. To approximate the ideal, “flat re-

sponse”, you could add a frequency

equalizer to your home theater system.

Your local RadioShack store carries fre-

quency equalizers that let you boost or cut

response in different ranges, as indicated

by your frequency response analysis.

Properly equalized, your system can

sound like one costing considerably more!

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