On Tue, 14 Dec 1999, Robert Hegemann wrote:
> -X4 this is a bit complicated, I think Greg Maxwell should
> explain this ;)
-X4 resulted from testing, overthinking and sleep deperivation. :)
It's better if:
The worst subband is less or equal to the masking while the previous
best's
(LAME v3.58)
-V6 is producing very similar average bitrates to Xings normal setting --
roughly 128kb/s. -V5 is averaging around 140kb/s. The default -V4 is
getting up towards 160kb/s which is producing somewhat larger files.
I think the default should be 6 (or at least 5) to be more consistent
Thanks for the info Robert.
Am I right in thinking -X0 is the default?
Is there anyone testing the different -X settings on different music types.
Maybe the results of tests should be published somewhere for comparison?
John Hayward-Warburton has mentioned his preferences with -X4 & 5 in choral
> What does the -X parameter do exactly?
When LAME searches for a "good" quantization, it has to compare
the actual one with the best one found so far.
The function quant_compare says which one is better, the best
so far or the actual.
Now the -X parameter selects between different approaches t
Ross Levis wrote:
> What does the -X parameter do exactly?
Only from looking at the code (and not understanding more than half of it...):
It's all in quantize.c (look for references to `experimentalX'). It affects the
output of function quant_compare().
John
[EMAIL PROTECTED]
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MP3 ENCODE
> From: "Gabriel Bouvigne" <[EMAIL PROTECTED]>
>
> Perhaps a stupid question, but what is libm ?
The maths library in C compilers in the style of Unix cc. It contains the
functions; some compilers don't link with it by default.
-- Mat.
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MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encod
John Hayward-Warburton wrote:
> It is true that some FM stations (in the UK at least) put
> filters in below
> 30Hz to allow in-band switching tones to be used between studios.
Not that we use a filter here but I am aware that a lot of stations in the
USA and elsewhere use a highpass filter whic
> Ok, but this is still a bit confusing to me; does this mean that when an
> encoder would try ((layer II)) VBR, eg switching from 192 to 384 kbit/s
> and back etc., he would or would not be allowed to also switch to
> "free" (bitrate_index = ) ?
> I.e. is it allowed to do e.g. 192, 384, f
> Should we use libm library in linking ( -lm) or not ?
> There is no difference in CBR in quality (only speed).
> In VBR there is difference in byte by byte comparing,
> and libm is about 13% slower.
Perhaps a stupid question, but what is libm ?
Regards,
Gabriel Bouvigne - France
[EMAIL PROTE
Hi everyone,
I just wondered if there is something like a list of variables that are used in the
LAME code? For me, and I guess for other newcomers too, this would make life a lot
easier. If there isn't such a thing perhaps it's not a bad idea to start one. What I'm
thinking of is something li
Robert Hegemann wrote:
> Thank you Ross for the info about radio frequencies.
> Coding FM quality with sharp cutoff would look like:
>
> lame --highpass 0.05 --highpass-width 0
>...etc
May I make a case for --highpass 0.016 ? FM Radio usually goes down a bit
lower than 50Hz. The lowest note
Hi Everyone,
I just have a couple of questions:
a) where do the tone-masking-noise and noise-masking-tone values (29 and 6 dB) come
from and
b) why are they suddenly 18 and 6 dB for MPEG-2 AAC???
Thanks in advance,
Erik--
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