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MediaPortal 1
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Per-channel volume correction
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<blockquote data-quote="scoop" data-source="post: 18471" data-attributes="member: 10498"><p>Hi,</p><p></p><p></p><p>Both the DScaler and the MPEG2 audio codec have the "Dynamic range control" feature for this. It'll increase the volume dynamically. I personally prefer not to use this option, since it has side-effects, too. BTW, many TV's use the same kind of technique to level the audio, too.</p><p></p><p>The biggest problem lies with the TV stations themselves, not the cable operators. They all use different audio proccessing settings (one more aggressive than the other). The same goes for radio stations. They use compression techniques to pump up softer sounds. And different stations use different audio compression ratios... This results in audio being at the same volume (at the signal level), but it "feels" much louder because the average sound level is way higher. That's why normalization often doesn't do what you want, because it only handles the (maximum) signal level, and does not add compression to the signal.</p><p></p><p>Kind regards,</p><p>Michel</p></blockquote><p></p>
[QUOTE="scoop, post: 18471, member: 10498"] Hi, Both the DScaler and the MPEG2 audio codec have the "Dynamic range control" feature for this. It'll increase the volume dynamically. I personally prefer not to use this option, since it has side-effects, too. BTW, many TV's use the same kind of technique to level the audio, too. The biggest problem lies with the TV stations themselves, not the cable operators. They all use different audio proccessing settings (one more aggressive than the other). The same goes for radio stations. They use compression techniques to pump up softer sounds. And different stations use different audio compression ratios... This results in audio being at the same volume (at the signal level), but it "feels" much louder because the average sound level is way higher. That's why normalization often doesn't do what you want, because it only handles the (maximum) signal level, and does not add compression to the signal. Kind regards, Michel [/QUOTE]
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