Excerpts from Rob's message of 2011-04-24 06:32:12 +0200: > On Saturday 23 April 2011 18:45, Arnold Krille wrote: > > On Sunday 24 April 2011 00:32:38 lanas wrote: > > > But, once ripped to ogg files and played from a m3u source (eg. > > > sequentially) there are - no surprise - small blank cuts between each > > > piece, which can be disturbing in such a context. The context here > > It has nothing to do with the way the mp3/ogg/flac/wav is encoded and it > > has nothing to do with the kind of music (live-recordings face the same > > problem). > > Well, in the case of mp3s, it does have to do with how the file is encoded. > If the end of a piece of music doesn't coincide with an mp3 frame boundary, > and it almost never does, there'll be up to 24 milliseconds of silence, > enough to make a skipping noise even if your gapless playback program > concatenates the files perfectly. I think LAME or cdparanoia might > introduce some additional problem, as I just brought up the individual > tracks of my copy of Dark Side of the Moon and Brain Damage has 38 > milliseconds of silence at the end before Eclipse, which isn't present in > the other copy I have that I ripped as one long track. > > There's no way that I've found to rejoin the tracks programmatically > without access to the original recording. The best gapless playback effect > I've found was a plugin for I think xmms years ago that let me crossfade > about 50ms between tracks, and that still created the occasional glitch. > > I have so many ripped CDs affected by this between prog rock, dance mixes, > and live albums that I might well have to re-rip all 1100-odd discs to FLAC > (since disk space is an order of magnitude cheaper than when I started > ripping to mp3) to correct this problem. But even if you encode an entire > disc to one big mp3 file and then cut it into tracks on frame boundaries > rather than doing the cutting before encoding, the problem is eliminated. > It's just that I've never seen a ripper program that'll do so, and when I > was writing the scripts I used to rip CDs en masse, I wasn't aware of the > problem yet. > > Rob AFAIK Lame should be better in this regard than other encoders, but it also requires a capable decoder. From: http://wiki.hydrogenaudio.org/index.php?title=LAME * Gapless playback with LAME-header compliant decoders You might also want to have a look at: http://wiki.hydrogenaudio.org/index.php?title=MP3 http://wiki.hydrogenaudio.org/index.php?title=MP3 or the forums: http://www.hydrogenaudio.org/forums/ _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
