Acoustical design
Dell EMC focuses on sound quality in addition to sound power level and sound pressure level. Sound quality describes how disturbing or
pleasing a sound is interpreted, and Dell EMC references a number of psychacoustical metrics and thresholds in delivering to it. Tone
prominence is one such metric. Sound power and sound pressure levels increase with greater populations or higher utilization, while sound
quality remains good even as the frequency content changes. A reference for comparison to sound pressure levels for familiar noise sources
is given in the following table. An extensive description of Dell EMC Enterprise acoustical design and metrics is available in the Dell
Enterprise Acoustics white paper.
Table 17. Acoustical reference points and output comparisons
Value measured at your ears Equivalent familiar noise experience
LpA, dBA, re 20 µPa Loudness, sones
90 80 Loud concert
75 39 Data center, vacuum cleaner, voice must be elevated
to be heard
60 10 Conversation levels
45 4 Whispering, open oce layout, normal living room
35 2 Quiet oce
30 1 Quiet library
20 0 Recording studio
Power, Thermal, and Acoustics 49
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