Read and respond to this message at: https://sourceforge.net/forum/message.php?msg_id=5184243 By: mokhov
Hi, > I am somewhat new to audio analysis so I apologies > if this is a silly question. I am trying to use MARF's > FFT support to determine the frequencies of musical > instruments. The results I am getting are not > very accurate. I am just curious how did you set up your experiments? Are going through the pipeline in the MARF's class or are you invoking the classes you need directly? What kind of results are getting, i.e. "not very accurate"? What kind of samples (WAV files) are you using for training and testing (i.e. encoding details). It's in general good to know of the environment. Also the MARF version you are using. > I think that I may need to sample at a higher frequency > in order to get better results. This may certainly help. The default is 8000 Hz (not 80000), which is roughly corresponding to the quality of the phone line; if you have a higher quality data, you must definitively set a more compatible sampling frequency. > However, there doesn't seem to be a way to change > iRequiredFrequency which is set to its default (80000Hz). The SampleLoader class has the standard get/setRequiredFrequency() methods... that brings me back to the question which MARF version you are using, in particular the revision of the SampleLoader class (found in the @version Javadoc comment on top of the class). This is the latest current revision of the class so far for comparison: http://marf.cvs.sourceforge.net/*checkout*/marf/marf/src/marf/Storage/SampleLoad er.java http://marf.sourceforge.net/docs/marf/0.3.0.6/api-dev/marf/Storage/SampleLoader. html Thanks, -s ______________________________________________________________________ You are receiving this email because you elected to monitor this forum. To stop monitoring this forum, login to SourceForge.net and visit: https://sourceforge.net/forum/unmonitor.php?forum_id=213052 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ marf-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/marf-devel
