I have a few questions about radio broadcast standards. Background Info: I recently purchased an audio editor called 'Hindenburg Journalist'. The software analyzes audio as it is imported and then automatically adjusts levels. In many cases it lowers the level of my clips considerably. Hindenburg Systems says their program adjusts audio clips "relative to each other for a professional and balanced mix." That part seems fine. When importing audio into Hindenburg Journalist, all levels are automatically set to the following levels: Peak 9 QPPM; Narration 21 LUFS; and Music 23 LUFS.I notice that the finished output file has peak amplitude way way below 0dB. I understand leaving some headroom when recording my initial tracks. But what is the advantage of leaving so much headroom in a finished, mixed output file? Isn't the listener just going to have to crank up the volume? Wouldn't it be better not to drop the levels of everything so much but rather keep the final mix closer to 0dB to lessen noise?
I notice that the finished output file has peak amplitude way way below 0dB.
The rules for FM are stay within your channel and the correct power.
For AM I think (was never a radio engineer) you can hit +125% positive modulation but may NOT cut off the carrier on negative peaks as it causes out of band splatter.
Radio people have found that American consumers are very dumb and will select a station based on how loud it is. It doesn't need to sound _good_, just LOUD.
<snip> Duplicates for Europe (particularly Germany) insist on an average level of -21 +/- 1dB LUFS<snip>
Quote from: Glenn Gundlach on 07 March, 2013, 11:29:47 PMRadio people have found that American consumers are very dumb and will select a station based on how loud it is. It doesn't need to sound _good_, just LOUD.That's the programmers and managers ego at work. They have all the data that shows none of that is actually true. But just imagine the ego sag if you punch up your station on the dial and it's quieter than the competition. The reality is, a listener has a knob called a volume control, and he twists it all the time, station loudness being only one cause.