Posted by JJ on 12/18/06 03:54

<reply@this.newsgroup.com> wrote in message
news:avhbo2pu6c43v7g6eei918bkhas3pq6ff0@4ax.com...

> Are you sure this silence is in the file itself and not a gap in playback
> through your player when going from one mp3 to another? Here's a quote
> from
> the Design Limitations listed on http://en.wikipedia.org/wiki/MP3
>
> "Encoder/decoder overall delay is not defined, which means lack of
> official
> provision for gapless playback. However, some encoders such as LAME can
> attach
> additional metadata that will allow players that are aware of it to
> deliver
> gapless playback."
>
> The player must read the first frame in full before it can play it, so
> unless
> the player is reading ahead, there will always be a one frame length gap
> in
> the playback. A rough check on a sample encoded at 128 kbs, 44.1 khz,
> stereo
> showed a frame length of about .026 seconds (fixed bit rate was used).
> That
> would tell me that any player I used would require 0.026 seconds before it
> could start spitting out any sound.

Well, I base my statement on the fact that I imported both the original file
and the converted file into Audacity and the audio in the latter is visibly
shifted forward in time. It was here that I made my measurement to determine
the time spans I mentioned in my original post.

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