[vorbis] trying to get better ogg quality for this clip

Chris cl at enposte.net
Tue Feb 25 19:10:03 PST 2003



You could try this, no clue how well it would work,

create a intro ogg file, and a end ogg file and attach them to each 
other (can be done pretty easily)
i think vcut can do it (anyone know for sure?)

John E. Leon Guerrero wrote:

> Yes, that sample sounds much better in the beginning since the "gravel 
> effect" is gone and there is not much "swishing" in the guitar sound. 
> However, IMHO, the rest of the piece sounds "flat" most likely due to 
> the frequency limit.  For instance, with good headphones, you can hear 
> the snare springs from under the snare drum in the other pieces when 
> you A-B compare the samples.  Interestingly, the ogg samples that I 
> provided earlier all sound wonderful in full 44khz after the initial 
> 15 second intro.  For comparision sake, I encoded the sample with LAME 
> at 64kbps, 22khz, JS and found similar results.  Ie, the intro sounds 
> good (though it doesn't have the same "bell-like" chiming quality that 
> mp3 PRO and WMA have) due to the lack of the gravel effect and the 
> swishing sound...but it too sounds flat for the rest of the sample 
> which you can notice with the snare drum springs.
>
> http://qa01.live365.com/jlg/VH_simple_64kb_22kh.mp3
>
> I don't have a clue how hard this would be, but it would be wonderful 
> if the encoder could tell that the first 15 seconds were going to be 
> difficult to encode at 44khz and automatically downsample at 22khz 
> (where it at least sounds normal despite lacking a little high end 
> presence), and then resume the normal 44khz encoding once the "high 
> demand" is over.  I noticed in winamp that the higher q settings 
> consumed more bits-per-second for the opening piece, which could be an 
> indicator.
>
> thanks,
> jlg
>
> Tyler Knott wrote:
>
>> http://webpages.charter.net/tknott/other/VH_simple-ABR64k.ogg
>
>
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