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Speex 1.0-beta 2 Is Out, Speex now faster
jmvalin
post Oct 28 2002, 08:12
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Xiph.org Speex developer


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I'd like to let you know that I just released Speex 1.0-beta2:

"This second beta release brings many, many optimizations to the encoder
and decoder. In some cases, the speedup is on the order of 50% to 100%.
As part of the optimizations, some sections of Speex have been written
in assembly with SSE instructions which can be enabled with the _USE_SSE
flag when compiling with GCC. Finally, the code has received a major
cleanup."

Also the web site has been re-designed: http://www.speex.org/
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Benjamin Lebsanf...
post Oct 28 2002, 10:05
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could someone please compile a win32 version please ? Perhaps a windows version could be on speex.org as well ?
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john33
post Oct 28 2002, 15:33
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xcLame and OggDropXPd Developer


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QUOTE (Benjamin Lebsanft @ Oct 28 2002 - 10:05 AM)
could someone please compile a win32 version please ?

win32 compile of speexenc and speexdec available now at Mirror 1, below. smile.gif

Edit: New update version of Speexdrop + sources posted too. smile.gif


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imi
post Oct 28 2002, 19:46
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Does the new speex encoder / decoder support high quality wav files for input or does it only take mono wav files? If it only takes mono wav files, can someone please tell me the best, quickest, simplest way to get a wav file to mono wav using a command line program, if any are available!
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john33
post Oct 28 2002, 19:51
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xcLame and OggDropXPd Developer


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QUOTE (imi @ Oct 28 2002 - 07:46 PM)
Does the new speex encoder / decoder support high quality wav files for input or does it only take mono wav files?  If it only takes mono wav files, can someone please tell me the best, quickest, simplest way to get a wav file to mono wav using a command line program, if any are available!

If you are a win32 user, you could use speexdrop which will do the downmixing (to mono) and the resampling for you. smile.gif


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imi
post Oct 28 2002, 20:02
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how did you get your program to do all the downmixing stuff?
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john33
post Oct 28 2002, 21:01
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QUOTE (imi @ Oct 28 2002 - 08:02 PM)
how did you get your program to do all the downmixing stuff?

Well, the downmixing is easy enough: (left channel + right channel)/2 about does it! wink.gif But, the resampling stuff is somewhat more complex. The source code is posted if you want to look through it. smile.gif


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Surge
post Nov 1 2002, 02:41
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Is it only me or it happens to everyone?
When I try to use speexdrop with a big audio file (1 hour lecture recording in 8khz, 16bit PCM) speexdrop increases in size and then almost kills the whole system. So after a few
minutes speexdrop takes 700Mb of virtual memory. However if I use speexenc.exe, then
everything is ok and very fast, total memory taken is only a few kb.

May be it is possible to create speexdrop similar to LameDrop, where an external encoder is used?


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john33
post Nov 1 2002, 15:34
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Sounds like I have a memory leak problem. I'll look into it. Thanks for the notification. wink.gif


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john33
post Nov 1 2002, 19:55
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xcLame and OggDropXPd Developer


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It was indeed a memory leak. Problem fixed and new sources and exe, V0.0.3, uploaded to Mirror 1, below.


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