>
> Hi,
> Just a simple question to check if I fully understand this:
> If I wanted to encode in the highest possible quality for MP3, would I not have
> to use -b 320 and --nores to disable the bit reservoir, to avoid frames being
> encoded with only 90% of the specified bitrate, so ensuring that each frame
> does indeed get 320 kbs? The bitreservoir doesn't make much sense if we want
> to encode at 320 kbs, does it?
>
> Ivo
>
What you say is true: if you use --nores, then none of the frames
will be encoded at 90% of the specified bitrate (since there
is no need to try and build up the reservoir). But when you
encde a frame, you can never hit the target bit rate exactly,
so there are always some left over bits. Without the reservoir,
these bits are just wasted.
I ran a quick check:
lame -b 320: average bits/frame: 8046
lame --nores -b 320: average bits/frame: 7917
So even at 320kbs, --nores should only be used for
specialized purposes.
Mark
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