<div dir="ltr"><div>Speaking of better compression, I've been using the following options on the command line for ages. I'm not sure what they actually do (stole the recipe from a thread on this mailing list, if I remember right), but they seem to improve the compression ratio over just using --best (by 0.3 to 0.5% typically), without any obvious impact on the compression time (not that I measured that scientifically, mind you...)</div>
<div><br></div>--apodization=tukey(0.25) --apodization=gauss(0.1875)<br><div class="gmail_extra"><br clear="all"><div style>Any one who would care to comment on what this does ?</div><div style><br></div><div style>Thanks,</div>
<div style>Pyt.</div>
<br><br><div class="gmail_quote">On Thu, Mar 14, 2013 at 3:06 AM, Ben Allison <span dir="ltr"><<a href="mailto:benski@winamp.com" target="_blank">benski@winamp.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
Flake is a completely independent codebase. When I used it years ago, I<br>
remember it being not only better compression but significantly faster as<br>
well. I believe some of the techniques used in libflake were added to<br>
libFLAC in 1.1.4. However, some of the improved compression in flake was<br>
due to options that are outside the FLAC 'subset', such as larger<br>
blocksize, greater number of prediction coefficients, and higher-order<br>
Rice codes.<br>
<span><font color="#888888"><br>
-Ben Allison<br>
</font></span><div><br>
> Are you sure that the encoding library was improved, or just the<br>
> command line?<br>
><br>
> Keep in mind that 1-8 (or 0-8) are just macros for particular<br>
> combinations of options that are also available separately.<br>
><br>
> I'm just guessing, here, but 9-12 might be nothing more than selected<br>
> combinations of options that are already available in the official<br>
> flac command-line, albeit without a short, numerical abbreviation.<br>
><br>
> Brian Willoughby<br>
> Sound Consulting<br>
<br>
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