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Subject: Re: Rockbox Digest, Vol 13, Issue 36

Re: Rockbox Digest, Vol 13, Issue 36

From: Brian Wolven <brian.wolven_at_verizon.net>
Date: 2005-02-17

Ray Lambert wrote:
>>
>> Correct. Rockbox doesn't produce any gaps in the output, it just
>> streams the
>> mp3 frames to the decoder (after removing frames with meta data, like id3
>> tags). The decoder chip doesn't even notice that there was a track
>> change.
>> If you encode a live recording as multiple mp3s, you get partially filled
>> frames at the boundaries which produce audible gaps. The gaps are
>> encoded in
>> the mp3s! If you encode the whole cd as one mp3 and cut the mp3
>> afterwards,
>> you won't have these gaps.
>>
>> Andreas
>>
>
> Very iiiiiintesting.... thanks for the info Andreas!
>
> I'm trying lame --nogap right now. So how does --nogap work, exactly?
> Doesn't it have to cut or insert something to prevent partial frames?

I haven't used nogaps yet myself, but I imagine it simply shifts the boundary
between consecutive tracks very slightly so that it falls right on a frame boundary.

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Received on Thu Feb 17 22:34:35 2005


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