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 > Speex-dev at xiph.org > http://lists.xiph.org/mailman/listinfo/speex-dev >
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 >> Speex-dev at xiph.org >> http://lists.xiph.org/mailman/listinfo/speex-dev >>
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 >>> Speex-dev at xiph.org >>> http://lists.xiph.org/mailman/listinfo/speex-dev >>> > > _______________________________________________ > Speex-dev mailing list > Speex-dev at xiph.org > http://lists.xiph.org/mailman/listinfo/speex-dev >