5.6.2
Discrete Tone Penalty
Discrete tone penalties are added to the A-weighted sound power (Lw) with following formula only when
determining compliance.
L w t ( s p e c ) = L w + 0 . 1 * P t + 0 . 3 < 4.0 (Bels)
where:
Lw
: A-weighted sound power level.
Pt
: Value of discrete tone penalty = dLt-6.0 (dBA)
dLt
: Tone-to-noise ratio taken in accordance with ISO 7779. at each octave band.
Specification
29
Summary of Contents for DBCA-203240
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Page 15: ...Part 1 Functional Specification Copyright IBM Corp 1998 7 ...
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Page 61: ...Part 2 ATA Interface Specification Copyright IBM Corp 1998 53 ...
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Page 190: ...Published in Japan S25L 2426 02 ...