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 DTNA-22160 - Travelstar 2.1 GB Hard Drive
Page 2: ......
Page 11: ...Figure 2 Breathing hole caution of DTNA 21800 22160 General 3...
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Page 15: ...Part 1 Functional Specification Copyright IBM Corp 1997 7...
Page 16: ...8 OEM Specifications of DTNA 2xxxx 2 5 inch HDD...
Page 26: ...18 OEM Specifications of DTNA 2xxxx 2 5 inch HDD...
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Page 51: ...Part 2 ATA Interface Specification Copyright IBM Corp 1997 43...
Page 52: ...44 OEM Specifications of DTNA 2xxxx 2 5 inch HDD...
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Page 163: ...Command Descriptions 155...
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Page 167: ...Timings 159...
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