| AbbathTheGrim said: My Home Theater (or at least what's left of it, fucking Nargaroth killed my speakers) lowers volume the higher the number settings are, increases volume the lower the setting numbers are. And I thought that was fucked up. |
I you really want to know, from the avs forum:
Home Theater Calibration.
Why do we calibrate our home theaters, we do this so we can get a balance between the level of speech and all the effects out of the individual speakers
AV Receivers have a DB counter.
Having a db counter on an AV receiver is for calibration and balencing to dolby reference, this is acheived buy using a SPL meter and special test tones.
This is mainly done for balancing movie sound.
The test tones are pink noise recorded at a lower level than full reference, the reason the tones are recorded at a lower level is so you can balance you Home theater with out going deaf in the process.
The tones are recorded at -20db below reference for AVIA DVD and -30 db below ref for internal tones from an AV Receiver.
Both DVD and internal test tones methods give the same results.
The amp it set to 00 and the tone is played through each channel and then you balance all speaker channels levels to 75 db.
1)The point of putting the amp on 0 and calibrating is then you can play movies at -10 and be 10 db below dolby reference level or play at -40 and be 40db below dolby reference.
2)Full dolby reference is usualy peaks of 105db per channel and 115db for LFE (bass).
IF you use bass management and run speakers set to small then the LFE and sound below 80hz is passed to the subwoofer and the bass level is bumped up from 115 to 121 db.
Full dolby refenence is very loud and can be damaging to you AV kit.
I watch most movies between -25db below ref at night time and -15/20db below ref in the day, full reference is too loud for me, I want to keep some hearing for the next 50 years.
