Author Topic: Low Frequency Definition ?  (Read 3953 times)

mike sorensen

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Low Frequency Definition ?
« on: March 17, 2012, 10:11:43 PM »
What is the low to high frequency range for the term "low frequency"?

Cheers, Mike

johnbergstromslc

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Re: Low Frequency Definition ?
« Reply #1 on: March 18, 2012, 09:31:12 PM »
It is kind of arbitrary, depending on your use.  Normal speech is from about 300 Hz to 3400 Hz, so you could define 'low frequency' as 20-300 Hz, below speech range. 

I've also seen it defined as anything less than 500 Hz.

You could also define it as the point where the average hearing threshold is greater than 20 dB, which is around 140 Hz.

Take your pick...

HouseMarketCrashVictem

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Re: Low Frequency Definition ?
« Reply #2 on: October 21, 2013, 03:42:12 AM »
Which means WHAT exactly? :-\

art noxon

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Re: Low Frequency Definition ?
« Reply #3 on: December 07, 2014, 01:21:22 AM »
Hi,

In audio, my version of LF low frequency is anything below 150 Hz. 

I'd say VLF very low frequency is the first octave, 20 to 40 Hz, the subwoofer range. 

Art Noxon, Acoustical Engineer
Pres of ASC TubeTraps

 

anything