What Is A Decibel? Can 'Negative' Decibels Exist?

[@tdumnxy]

I had a moment of clarity when the video used the water freezing point - 0 centigrade i.e. with reference to analogy - finally I think I will remember it! Thanks.

[@tmc1373]

EXCELLENT AND EASY TO UNDERSTAND VIDEO! THANK YOU SO MUCH!

[@ScienceABCII]

Glad it was helpful!

[@Slinkzii]

I'm happy that this random thought I searched up had a video

[@Phuttisun]

same as me

[@Monometre123]

Very well made video, thanks!

[@Beats_and_Shades]

Question.. if i have a sound preset and I turn the master bass volume of that preset all the way down to -10db, do all the bass frequencies disappear or are they just unhearable ? Many thanks

[@ChuckN0rr1st]

No, decibel is just a ratio between source and target signal. If you keep the preset on default, it will be at 0 db (unchanged). If you decrease below zero, you will reduce the volume relative to the original signal. -10db is somewhat ~30% of the originally volume. Your original audio signal is basically that reference point for db adjustment. The video talked about another reference point for decibel measurement. The absolut quietest noise a human could hear. This is often used to describe how much louder our environment is compared to perceived, complete silence.

[@matiasvicuna3926]

Gracias

[@syahrialrasyid2539]

thanks a lot

[@mohamedelaminenehar333]

i like it we need more )

[@Dale_Blackburn]

Nice video

[@JimBoom92]

sorry but this video created more questions than it answered.

[@galaxie12]

agreed. totally useless for practical purposes.