Journal article
A Short Tutorial on Sound Level and Loudness for Voice
Journal of singing, Vol.70(2), pp.191-192
11/01/2013
Abstract
The human auditory system perceives sound intensity or pressure in terms of loudness; however, tones of equal SL do not have equal loudness. Low frequency tones (around 100 Hz) require 10-20 dB more SL than mid-frequency tones (500-3000 Hz) to be perceived with equal loudness. High-frequency tones (above 10,000 Hz) also require more SL than mid-frequency tones. At any one frequency, loudness perception roughly doubles with every 10 dB increase in SL. To complicate matters, the frequency spectrum (higher partials) also affects loudness perception if the sound is more than a simple tone. Spectrally rich sounds (lots of high frequency partials) are perceived louder than spectrally poor sounds (few partials).In summary, doubling sound sources (more singers or more loudspeakers) buys you only 3 dB, doubling your lung pressure buys you 6-9 dB, doubling your pitch buys you 6 dB, and getting into the sensitive region of a person's auditory system (250-4000 Hz) can buy you extra loudness without increase in SL.
Details
- Title: Subtitle
- A Short Tutorial on Sound Level and Loudness for Voice
- Creators
- Ingo Titze
- Resource Type
- Journal article
- Publication Details
- Journal of singing, Vol.70(2), pp.191-192
- Publisher
- National Association of Teachers of Singing
- ISSN
- 1086-7732
- eISSN
- 2769-4046
- Language
- English
- Date published
- 11/01/2013
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719733302771
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