Re: Best tool for splitting long MP3's at frames?

Kimmo Suominen <[email protected]> Sat, 26 Feb 2005 11:54:30 -0500
Newsgroups gmane.comp.hardware.voyetra.audiotron
Message-ID <[email protected]>
I've been using LAME's --nogap for a long time, and I have no gaps
between the tracks when using the AT (or Winamp) for playback.

The iPod has gaps no matter what you do...

The Squeezebox seems to eat a frame or two in between songs at times,
or that's what it sounds like.  Haven't looked into that closely.

Regards,
+ Kim
--
<A HREF="http://kimmo.suominen.com/">Kimmo Suominen</A>


On Fri, Feb 25, 2005 at 08:26:20PM -0500, Mike Peschka wrote:
> Brent-
>
> LAME offers a series of --nogap command-line arguments that will let you
> do gapless encoding for a set of files such as those from an entire
> album. I've never tried it myself, but I assume that instead of padding
> the last frame with zeroes, it goes ahead and starts using data from the
> next track. This would accomplish what you want and be a LOT less work
> than slicing the files manually.
>
> Hope this helps some,
>
> - Mike
>
> -----Original Message-----
> From: Turtle Beach Audiotron User Forum
> [mailto:[email protected]] On Behalf Of Brent Aliverti
> Sent: Friday, February 25, 2005 1:04 PM
> To: [email protected]
> Subject: [AT] Best tool for splitting long MP3's at frames?
>
> The MP3 format endodes each fractional second of song information into
> individual "frames". As such, the last bit of information in the song
> often only partially fills the last frame. The rest of that last frame
> is zero'd out. For this reason, songs that are meant to flow into each
> other will have perceptible gaps in them, even if the playback device
> does a good job of pre-buffering the next track.
>
> Such partial frames can theoretically be eliminated by encoding the
> entire "album" or "album side" as one long MP3 and then using a tool to
> split the long MP3 into individual MP3s, only allowing splits at frame
> boundaries. Has anyone had experience doing this, and if so, what is the
> best tool to use?
> Will it make a difference for the Audiotron...IE will eliminating
> partial frames yield truly gapless flow from one song to the next (for
> albums like Dark Side of the Moon for instance) or are there still some
> limitations of the buffering process that will insert a noticeable gap
> regardless?
>
> As it is, Audiotron is really great at minimizing the gaps between
> songs.
> I'm just trying to see if it can be even better. :-)
>
> Cheers
> Brent
>