More > JRiver Media Center 19 for Windows
NEW: Improved audio analysis and volume leveling (R128)
6233638:
--- Quote from: Denti on August 24, 2013, 11:40:08 am ---1) Is this feature something I can turn on and off? I like to list to albums a lot, and I don't want it affecting volume between tracks
--- End quote ---
Yes, you can turn it off. Albums are played back in such a way that all tracks are adjusted by the same amount.
--- Quote from: Denti on August 24, 2013, 11:40:08 am ---2) Does this feature negatively impact sound quality in any way? I use FLAC and try to get the most out of these files. I don't want something interfering or changing this.
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The short answer is that there should not be an audible change.
With a target level of -23 LUFS, you are theoretically discarding up to 4-bits of precision (6dB per bit) but with a 24-bit output that should still give you 120+dB of SNR which is beyond most DACs anyway, and still sufficient for "lossless" CD quality playback. (16-bit)
Dave_G:
For some reason I am noticing a degradation of sound quality when using volume levelling, a not too subtle loss of clarity to the sound. I thought I'd take a look in here to see if others had experienced the same, but it appears not. It's OK for shuffle play when music is just a background thing but when using headphones and listening critically I don't like it at all. For now this feature is staying off. It's not really a big deal, I don't mind adjusting the volume as I need to.
All my files are ripped as aiff at the same sample rates as the originals, so mostly 16/44.1 with some 24/96 or 192 downloads & even a couple of DsD's as my DAC is DsD capable. I never compress anything. Don't see why that would make any difference though. I do often use DsD encoding and quite like it.
6233638:
If you are outputting 16-bit files at 24-bit or greater (which Media Center does by default) you should not hear any degradation.
However, with the way that our hearing works, louder generally sounds better. So if you have enabled volume leveling and have not matched the volume to its previous level, you may perceive it to sound worse.
fallsroad:
--- Quote from: 6233638 on August 24, 2013, 12:35:19 pm ---Yes, you can turn it off. Albums are played back in such a way that all tracks are adjusted by the same amount.
The short answer is that there should not be an audible change.)
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Some of this discussion is admittedly over my head.
For clarity, is this a non-destructive process? There are no actual changes to audio files?
Are values written as tags in the files themselves, or stored in the library?
I ask because I have been using dbpoweramp to rip and convert files and add RG tags in the process. There is a DSP for R128 Normalization, but it rewrites the audio content of the files so i have not used it.
Thanks.
Matt:
--- Quote from: fallsroad on August 27, 2013, 09:36:46 pm ---For clarity, is this a non-destructive process? There are no actual changes to audio files?
Are values written as tags in the files themselves, or stored in the library?
--- End quote ---
It is non-destructive. The audio in the file is not changed in any way.
Values are stored in the library and tags and optionally used at playback time to enhance the experience. You can turn the playback processing on or off easily.
I'm a believer in playback-time processing. Store a perfect copy, then apply any processing at playback time. This provides more flexibility and provides room for future improvements without ever requiring you to rerip / reencode.
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