Is "reference level" LOUD to YOU? - Page 13 - AVS Forum
View Poll Results: Is properly reproduced (read: relatively low distortion, unstrained/unclipped programme) "reference
1. Perfect. This is the way movies should sound. 28 12.17%
2. A bit too loud for me/my guests, I'm usually between -10 and 0 on the volume dial 70 30.43%
3. Too loud, I'm usually between -10 and -15 on the volume dial 80 34.78%
4. Much too loud, I'm usually - 15 or more on the volume dial 47 20.43%
5. Ae you crazy, it's not loud enough, I spend most of my time in "0+ land" 5 2.17%
Voters: 230. You may not vote on this poll

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post #361 of 363 Old 05-25-2014, 08:38 AM
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AVR-Yamaha A830
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post #362 of 363 Old 05-25-2014, 09:35 AM
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Originally Posted by primetimeguy View Post

No, most receivers use - 30dbfs tones so since you validated levels with spl meter you are good to go, leave them as set by ypao.

Originally Posted by J_Palmer_Cass View Post

The Yamaha calibration is correct. The built in test tones of consumer receivers use a -30 dB FS test tone, so the SPL calibration level comes out to be 75 dB SPL (105 dB SPL Max Peak - 30 dB = 75 dB).

Commercial equipment uses a -20 dB FS test tone, so the SPL calibration level comes out to be 85 dB SPL (105 dB SPL Max Peak - 20 dB = 85 dB).

If you make or use an external calibration test disk, you need to know what levels were used in the recording process as well as the Dialnorm value used if the test disk is Dolby Digital.
Thanks very much to both of you!

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post #363 of 363 Old 05-25-2014, 03:24 PM
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Originally Posted by MKtheater View Post

So basically when I run a -10dBFS sweep in REW with my processor set on MV -10 it should read 85 dBs for the sweep?

Provided the level from the REW digital IO matches playback from the other sources, which is easy to verify by comparing a sine wave from REW to sine wave playback from a file, simply by measuring the output from the amplifier.
In many cases it will, such as in my measurement system here with a pro usb IO, where the analog output at 0dBFS is at a standardized level, and the AVR input also matches this standardized level for 0dBFS.

(Hope I didn't say anything wrong again, don't want to add even more confusion..)

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