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What Is A Decibel And How Can Negative Decibels Exist ...
https://www.scienceabc.com/pure-sciences/why-negative-decibels-are-a-thing.html#:~:text=A%20positive%20dB%20means%20that%20the%20sound%20is,also%20depends%20on%20the%20setting%2Fcontext%20of%20the%20situation.
Why does my Amplifier use Negative dB for ... - Cable Chick
https://www.cablechick.com.au/blog/why-does-my-amplifier-use-negative-db-for-volume/
For things that humans hear, dB is measuring the Sound Pressure Level (dB SPL), with 0dB being the lower limit of human hearing and 120dB being our threshold for pain. When it comes to our home theatre equipment, though, our amplifiers are receiving a digital audio signal that has a dynamic range based on its sample rate. So, rather than a physical sound pressure …
What Is A Decibel And How Can Negative Decibels Exist ...
https://www.scienceabc.com/pure-sciences/why-negative-decibels-are-a-thing.html
0 dB means that you are right at the threshold of human hearing. A positive dB means that the sound is a few times louder than the threshold, while a negative dB means that you are a few times softer than that threshold. Additionally, 0 dB also depends on the setting/context of the situation.
Why are decibel levels sometimes negative? - Residential ...
https://residential-acoustics.com/decibel-levels-sometimes-negative/
As you amplify that signal, there is greater risk of distortion, which would be heard from the speaker’s end point. The dB scale works the same way as the positive decibel scale (used to measure sound amplitude) – for instance, an increase from -35dB to -25dB would effectively double the signal, just as an increase from +15dB to +25dB would.
Why does my recorded audio show up with negative dB ...
https://www.quora.com/Why-does-my-recorded-audio-show-up-with-negative-dB-amplitude-on-Audacity-Silence-seems-to-be-at-around-60db
In sort, this references the the 0dB point at 20μPa, which is accepted as the level of human hearing at 1kHz. In all recording, we typically set the zero point at the peak volume, so you’re reading in terms of negative dB below the full-scale point. In the analog domain, there’s no single standard for a volume level at full scale or 0dB, and y
Why does my Yamaha receiver measure volume in …
https://www.quora.com/Why-does-my-Yamaha-receiver-measure-volume-in-negative-decibels
Because decibels are always a ratio. It all depends on what the reference level is, i.e. where you decide 0dB is. For signals, these are often measured in dBm, or decibel-milliwatts. 0dBm is 1mW. So a signal less than 1mW has a negative value. -50 dBm is the same as 10 nanowatts.
Still not understanding why dB's are measured in negative ...
https://www.reddit.com/r/audioengineering/comments/5a3roe/still_not_understanding_why_dbs_are_measured_in/
Lastly, digital audio is usually measured in dBFS (decibels below full scale). Digital audio is stored as numbers, and there is an absolute maximum number that a computer can store. That maximum is chosen to be 0dBFS, and you measure how far below that is, using negative dB. You never see positive values in digital audio because you can't go higher than the reference value. …
How is threshold in compression measured in negative dB ...
https://homerecording.com/bbs/threads/how-is-threshold-in-compression-measured-in-negative-db.381891/
Yeah, it's confusing at first. Gain is generally measured as a positive figure as in your examples, but the recorded audio signal is generally measured as a negative figure. 0dB (I don't know the different scales) is taken as the maximum possible amplitude in modern DAWs, and by your converters - This is a line that you cannot cross.
How is threshold in compression measured in negative …
https://gearspace.com/board/newbie-audio-engineering-production-question-zone/1018913-how-threshold-compression-measured-negative-db.html
Negative dB simply means that the signal of interest is smaller than the reference signal. Lowering your fader to -6 dB reduces the signal by half its amplitude, i.e., you've applied attenuation instead of gain.
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