Re: Upsampling while decoding / Updating
Hermann Weber <[email protected]> Wed, 08 May 2013 06:38:58 +0200
| Newsgroups | gmane.comp.audio.compression.speex.devel |
|---|---|
| Message-ID | <[email protected]> |
Dear Nikos, thanks! But you use Opus only for resampling, not for entirely replacing Speex, don't you? Greetings! Hermie Am 07.05.2013 22:53, schrieb Nikos Chantziaras: > The Opus resampler is actually a bugfixed version of the Speex one. Same > interface/API, but with the bugs removed. It's why I recommended it :-) > Otherwise I would have recommended something entirely different, like > SoXR. > > > On 07/05/13 22:12, Hermann Weber wrote: >> Dear Nikos, >> >> thank you very much for your advice! >> >> I am not a little bit new to C++, and experiments (like using another >> third party library) always turn out to be days of work for me. >> That is why I would first like to try Speex's new internal resampling >> function. >> >> I am currently still using the old 1.0.4 version. >> >> I have now downloaded the new 1.2rc1 version. >> Unfortunately it does not want to compile the libspeex.dll right away, >> VS2010 tells me: >> >> Converting project file >> 'C:\Users\MyUser\Desktop\speex-1.2rc1\win32\VS2008\libspeex\libspeex.vcproj'. >> >> Failed to upgrade platform 'Windows Mobile 5.0 Pocket PC SDK (ARMV4I)'. >> Please make sure you have it installed under >> '%vctargetspath%\platforms\Windows Mobile 5.0 Pocket PC SDK (ARMV4I)' >> VCWebServiceProxyGeneratorTool is no longer supported. The tool has been >> removed from your project settings. >> Failed to upgrade 'Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I)'. >> Please make sure you have the corresponding platform installed under >> '%vctargetspath%\platforms\Windows Mobile 5.0 Pocket PC SDK (ARMV4I)' >> The project configuration dimension name/value "(Platform, Win32)" was >> not found in the project manifest. >> >> Is it possible to compile the libspeex.dll without support for Windows >> Mobile 5.0, or is there no other way? >> I am afraid of messing anything up by install it. >> >> Greetings! >> Hermie >> >> Am 07.05.2013 16:03, schrieb Nikos Chantziaras: >>> On 07/05/13 13:07, Hermann Weber wrote: >>>> Hello! >>>> >>>> I would like to know if it is possible to request encoding to a higher >>>> samplerate than the original data. >>>> For example my uncompressed data was 22 kHz, and I would now like to >>>> decode the compressed data to 48 kHz (to feed it to a filter which >>>> expects a high "input" format). >>>> Is this possible with Speex? >>> Speex comes with a resampler, so yes. You need to resample your signal >>> after decoding it. >>> >>> However, I'd recommend using the Opus resampler instead of the Speex >>> one. (It can be used stand-alone and directly included in your own code.) >>> >>> _______________________________________________ >>> Speex-dev mailing list >>> [email protected] >>> http://lists.xiph.org/mailman/listinfo/speex-dev >>> > > _______________________________________________ > Speex-dev mailing list > [email protected] > http://lists.xiph.org/mailman/listinfo/speex-dev >