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Q. What are the reference levels in digital audio systems?
https://www.soundonsound.com/sound-advice/q-what-are-reference-levels-digital-audio-systems
The professional standard reference is +4dBu, while the semi-pro reference is -10dBV, and, because these two figures use different reference points, there is just under 12dB of difference between the two.
Reference Level - Part One - Power Sound Audio
https://www.powersoundaudio.com/pages/reference-level-part-one
Reference level simply means that a recognized signal will be produced at a certain volume level at the seating position / microphone position. That's it. When calibrating the system the recognized signal is usually band limited (500hz to 2000hz for the full range channels) pink noise recorded at -30dBFS.
THX reference level explained - Acoustic Frontiers
http://www.acousticfrontiers.com/2013314thx-reference-level/
Reference level is a calibrated volume setting used for both movie production (in dubbing stages and post production houses) and reproduction (in screening rooms and theaters). The human hearing system is non-linear, especially in the bass, so having a consistent playback level – a reference – is critical if the mix is to translate from one production house to another …
Reference Level - Part Two - Power Sound Audio
https://www.powersoundaudio.com/pages/reference-level-part-two
First, let us remember that at reference level a home theater system will require each main channel to have 105dB of headroom and the subwoofer(s) to have 118-121dB of headroom. This assume all speakers are set to small with the deepest bass from all the main speaker combined and sent to the subwoofer(s) along with the LFE channel.
Audio levels – IPS
https://ips.org.uk/encyclopedia/audio-levels/
Domestic/consumer equipment is usually built with a much lower reference signal level which is normally defined as -10 dBV. In this case the V indicates that the reference signal is 1 Volt. Again, if you do the sums you discover that -10 dBV implies a signal of 0.316 Volts. If you convert this into (professional) dBu terms, it equates to -7.78 dBu.
The Perfect Monitoring Levels For Your Home Studio ...
https://www.masteringthemix.com/blogs/learn/the-perfect-monitoring-levels-for-your-home-studio
Now you need to work out at what volume you want to listen to your audio in your studio. 85dB SPL used to be a common suggestion for monitoring levels, but this figure was intended for larger spaces such as a cinema. This level is close to the more flat portion of the equal loudness contours (a more accurate update of the Fletchure-Munson Curves).
What is "reference level"? | Home Theater Forum and …
https://www.hometheatershack.com/threads/what-is-reference-level.24761/
Reference level is the volume at 75db (decibels) in your room using full band pink noise. When you set up your system and you run pink noise through your speakers one at a time setting each level using an SPL meter to 75db you will (after all channels are done) and your volume control is set to 0db you will achieve "reference" when playing back movies or music.
What is "reference" level? - AVS Forum
https://www.avsforum.com/threads/what-is-reference-level.1252556/
As mojo stated 75 db's is what you use to set your levels. Reference levels are 105 db's peak in any given channel full range. LFE is 115 db's peak. 85 db's is the average so if you are listening to 75 db's average then you are 10db's lower …
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