More > Media Center 14 (Development Ended)

ReplayGain

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yonkiman:

--- Quote from: gappie on October 11, 2010, 02:41:58 am ---i can understand that sometimes it might feel that way, but you can not say that about 15. with kernel streaming, 64 bit dsp, roomcorrection and much more, all audio features.
--- End quote ---

Well, gab, all it took was one look at your Richard Thompson-heavy now playing list and I was convinced - you clearly DO still care about music!  :-)

yonkiman:
This is as far as I got last year (it has some useful tag information).  I don't know if it was followed-up on or not. 

-----

from: Fred Hamilton
to   Robert Brose
date   Sun, Nov 22, 2009 at 10:01 PM
subject   Re: Fwd: Topic reply: Device information cannot be retrieved. Please reboot your PC and retry.u

Hi Bob,

I just wanted to follow up on our conversation from a few months ago.  We were talking about ReplayGain, and you mentioned that you thought you had it fixed with MC14.  I finally got a chance to check it out, and there's good news and bad news:

The good news is that when MC14 autoconverts formats while syncing to a portable device, it does now transfer the replaygain information to the converted file.  That's an improvement - I don't think MC13 did that.  So replaygain will work fine on the converted files if I play them in MC.

The bad news is that MC still does not use the "standard" replaygain tags, so no media player or portable device EXCEPT JRiver's can recognize or use it. 

MC's tag seems to be "MEDIAJUKEBOX:REPLAY GAIN".

"Standard" tags that the rest of the world (at least VLC media player, Foobar2000, and RockBox) expects are: 
  REPLAYGAIN_TRACK_GAIN
  REPLAYGAIN_TRACK_PEAK
  REPLAYGAIN_ALBUM_GAIN
  REPLAYGAIN_ALBUM_PEAK

I've verified that replaygain doesn't work on rockbox or foobar2000 with MC14-converted files, but vorbis-gained files work fine. I've attached images of the "smoking gun" - let me know if you'd like me to send the actual songs as well.

I've been pleading (and optimistically paying for upgrades) to get this implemented in MC for 2 or 3 years.  It seems so trivial - I'm surprised it hasn't happened yet!  JRiver seems to think that all that matters is that replaygain work on their closed MC system.  That's not an attitude I expect from you guys - you're so great in every other way.

So I wonder...is there any chance I will see this in my lifetime?  If all you did was add the 4 "standard" tags (you obviously want also keep the custom MC tags for backwards compatibility) I'd be delighted. 

Thanks again,
Fred

Matt:

--- Quote from: yonkiman on October 11, 2010, 10:47:28 pm ---Bad news:
I then took the same flac songs, stripped their tags in MC15, ran "Analyze Audio", and had MC15 convert them to ogg during another rockbox sync.  These ones did not replaygain correctly in my rockbox.  My first guess is that MC15 still just uses one "dB" value per track (presumably calculating album gain on-the fly as needed).  That may work fine for MC, but the rest of the world still needs an "album gain" and a "track gain" value for each track.

--- End quote ---

On conversion for a handheld upload, the track gain of the original file is written to the tag of the new file.  I just confirmed that APE to OGG conversion resulted in an OGG file with a proper track gain tag.

However, Media Center does not write album gain values to the file tag of any format.  You will have to use track gain on the device.

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