hi,All, <div> I want to know whether Opus has AEC features like Speex?</div><div><br></div><div><br></div><div><br></div><div> Thanks</div><div><br><br><div class="gmail_quote">2012/10/17 <span dir="ltr"><<a href="mailto:opus-request@xiph.org" target="_blank">opus-request@xiph.org</a>></span><br>
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Today's Topics:<br>
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1. encoding 44.1Khz (Sartre Salam)<br>
2. Re: encoding 44.1Khz (Ralph Giles)<br>
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Message: 1<br>
Date: Tue, 16 Oct 2012 12:48:49 +0100 (BST)<br>
From: Sartre Salam <<a href="mailto:gmxubuntu@yahoo.de">gmxubuntu@yahoo.de</a>><br>
Subject: [opus] encoding 44.1Khz<br>
To: "<a href="mailto:opus@xiph.org">opus@xiph.org</a>" <<a href="mailto:opus@xiph.org">opus@xiph.org</a>><br>
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<br>
Hi , I have read that it is posible to encode higher sample<br>
rates like 96 khz or 192khz? and the output is 48 khz,<br>
the resample is internally.? <a href="http://wiki.xiph.org/OpusFAQ" target="_blank">http://wiki.xiph.org/OpusFAQ</a><br>
But it is possible to encode? 44.1khz. It is resampled to<br>
<br>
48khz or I have to make the resample by myself and<br>
<br>
then encode it with opus.<br>
<br>
thnx, arctor<br>
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Message: 2<br>
Date: Tue, 16 Oct 2012 09:50:21 -0700<br>
From: Ralph Giles <<a href="mailto:giles@thaumas.net">giles@thaumas.net</a>><br>
Subject: Re: [opus] encoding 44.1Khz<br>
To: Sartre Salam <<a href="mailto:gmxubuntu@yahoo.de">gmxubuntu@yahoo.de</a>><br>
Cc: "<a href="mailto:opus@xiph.org">opus@xiph.org</a>" <<a href="mailto:opus@xiph.org">opus@xiph.org</a>><br>
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Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
On 12-10-16 4:48 AM, Sartre Salam wrote:<br>
> Hi , I have read that it is posible to encode higher sample<br>
> rates like 96 khz or 192khz and the output is 48 khz,<br>
> the resample is internally. <a href="http://wiki.xiph.org/OpusFAQ" target="_blank">http://wiki.xiph.org/OpusFAQ</a><br>
> But it is possible to encode 44.1khz. It is resampled to<br>
> 48khz or I have to make the resample by myself and<br>
> then encode it with opus.<br>
<br>
Encoding tools, like opusenc from the opus-tools package, will take care<br>
of resampling for you. Just feed in any PCM wav file and it<br>
should be fine.<br>
<br>
If instead you're writing a program yourself that uses the reference<br>
libopus API, then yes, you need to resample 44.1 kHz audio<br>
to 48 kHz before submitting it to opus_encode(_float).<br>
<br>
-r<br>
<br>
<br>
<br>
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End of opus Digest, Vol 45, Issue 5<br>
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