Hi Jim,
Thanks for the response.
Are you using MC15 latest build? 15.0.130 is available on the MC15 board.
Honestly, I haven't been keeping up. I downloaded it last night. For some reason it didn't import my MC14 database, and decided everything library-related was "read only" or something, so it can't/won't save library changes. I'll try to figure that out.
Your comment about our focus isn't accurate. We've spent a lot of time on audio.
Sorry if I sounded inflammatory. Replaygain is the biggest/only audio feature I care about that MC doesn't adequately support, and I've been asking for it and working off & on with some of your developers on it since May 08, 2006 (
http://yabb.jriver.com/interact/index.php?topic=33706.0), with no results. (
http://yabb.jriver.com/interact/index.php?topic=38695.0 and a long email exchange in September 2009 with Robert Brose that seemed to be making progress but sorta faded out)
I believe our tagging is up to date. If you have a problem, please report it in the thread that announces the build.
I tried a quick experiment last night. My initial results:
Good news:
When MC15 auto-converted my FLACs (that had been properly replaygain-tagged by soundKonverter in Linux) to OGG, replay gain seemed to work correctly on the OGG files when I listened to it on my ipod. So it looks like MC15 just transferred the replay gain tags to flac (as one would hope). This is better than the last time I tried (1 year ago, so MC14?), where the tags seem to be stripped or converted to a format/"container" that rockbox couldn't recognize. So that's very good progress - now I can use an external replaygain tagger on my flac library, but I won't have to rescan the same songs after they're converted to ogg to go on my rockbox. Progress! Thanks!
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.
I might have made a mistake somewhere, but that's what I believe is real, after an hour or so of messing around.
It sounds like you're genuinely interested in working on this, so I'd be happy to do more work to help. The first thing that would really help me would be if you could point me to a utility that shows all the tags in a file, and what sort of container (ogg) and/or type (ID3v1, ID3v2, etc.) they are in (I'm not an expert on all these tag nuances). If I recall from my conversation with Robert last year, part of the problem was the correct info being in the wrong container/format. I'd love to be able to see all this data directly, rather than have to do experiments that end up with broad results like "if I do A, B, and C, replay gain works on the rockbox".
Thanks,
Fred