Hi,<br><br>I apologize for my previous e-mail, I will be more specific this time.<br>I need to encode G711u WAV files to Speex, which are 4 minutes length on average. For this task I first convert audio to PCM 16 and then run the Speex command line encoder as follows. OS is WS2003 and Processor is Intel Xeon 5140 @ 2.33GHz (2 CPUs).<br>
Encoding such a file is taking around 2 seconds and the usage of the processor core where the encoder is scheduled to reaches 100%.<br><br>Goal: I'd need to know if it's possible to lower the encoding time without sacrificing so much quality and bandwith. I appreciate any suggestion on this.<br>
<br><b>>timeit speexenc --vbr --comp 2 <in>.wav <out>.ogg</b><br>Encoding 8000 Hz audio using narrowband mode (mono)<br><br>Version Number: Windows NT 5.2 (Build 3790)<br>Exit Time: 2:27 pm, Thursday, September 24 2009<br>
Elapsed Time: 0:00:02.109<br>Process Time: 0:00:02.078<br>System Calls: 8571<br>Context Switches: 2104<br>Page Faults: 1636<br>Bytes Read: 3872536<br>Bytes Written: 432660<br>Bytes Other: 73416794<br>
<br><b>>speexenc -v</b><br>speexenc (Speex encoder) version speex-1.2beta3 (compiled Dec 11 2007)<br><br>Thanks so much for your guidance<br>Pablo<br><br><div class="gmail_quote">---------- Forwarded message ----------<br>
From: <b class="gmail_sendername">Pablo Rios</b> <span dir="ltr"><<a href="mailto:pablo.javier.rios@gmail.com">pablo.javier.rios@gmail.com</a>></span><br>Date: Wed, Sep 23, 2009 at 5:18 PM<br>Subject: Encoding quality and CPU requirements<br>
To: <a href="mailto:speex-dev@xiph.org">speex-dev@xiph.org</a><br><br><br>Hi,<br><br>I'm running speexenc on Windows (version speex-1.2beta3 (compiled Dec 11 2007)) with the default encoding quality (--quality 8) and I would like to have an idea of how much gain in CPU usage I can get by decreasing quality (of course increasing bandwith).<br>
By the way, is this the latest version of the encoder for Windows ?<br><br>Thanks so much !<br><font color="#888888">Pablo<br>
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