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The Variety of Decibel - Hearing and balance assessment ...
https://www.interacoustics.com/guides/basics/the-variety-of-decibel-basics#:~:text=dB%20SPL%20is%20the%20measured%20pressure%20relative%20to,dB%20SPL%20is%20an%20absolute%20and%20frequency-independent%20unit.
Understanding the Difference Between Sound Pressure Level ...
https://hearinglosshelp.com/blog/understanding-the-difference-between-sound-pressure-level-spl-and-hearing-level-hl-in-measuring-hearing-loss/
What is SPL (Sound Pressure Level)? - Definition ...
https://study.com/academy/lesson/what-is-spl-sound-pressure-level-definition-examples.html
Sound pressure level uses a logarithmic scale to represent the sound pressure of a sound relative to a reference pressure, and it's measured in units of decibels (dB).
The Variety of Decibel - Hearing and balance assessment ...
https://www.interacoustics.com/guides/basics/the-variety-of-decibel-basics
dB SPL is the measured pressure relative to 20 micropascals. This 20-micropascal reference was selected because it was the quietest sound pressure level that a group of normal hearing test subjects could detect. dB SPL is an absolute and frequency-independent unit.
Sound Pressure Level Definition - Hearing Loss Association ...
http://nchearingloss.org/spl.htm?fromncshhh
SPL is actually a ratio of the absolute, Sound Pressure and a reference level (usually the Threshold of Hearing, or the lowest intensity sound that can be heard by most people). SPL is measured in decibels (dB), because of the incredibly broad range of intensities we can hear.
What is the difference between dB SPL and dB HL?
https://treehozz.com/what-is-the-difference-between-db-spl-and-db-hl
dB of sound pressure level (dB SPL) is defined as: 20 log 10 p1/p0 where p1 is actually measured sound pressure level of a given sound, and p0 is a reference value of 20μPa, which corresponds to the lowest hearing threshold of the young, healthy ear.
Real-Ear Measurement: Basic Terminology and Procedures ...
https://www.audiologyonline.com/articles/real-ear-measurement-basic-terminology-1229
Formal Definition: SPL, as a function of frequency, at a specified measurement point in the ear canal, for a sound field sufficient to operate the hearing instrument at its maximum output level, with the hearing aid (and its acoustic coupling) in place and turned on, with the gain adjusted to full-on or just below feedback. Note: ANSI S3.46-1997 does not define …
The dBA versus the dB SPL war | Marshall Chasin ...
https://hearinghealthmatters.org/hearthemusic/2012/the-dba-versus-the-db-spl-war/
The dB SPL scale treated all frequencies the same. It is a truly non-discriminatory scale. We could measure 500 Hz and get a measure of the level in dB SPL; and we could measure 4000 Hz (my personal favorite) and also get a measure of the level in dB SPL, so why ruin something that seemed to work?
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