Hi Stefan, the spectrograms from your far-field recording are now showing a very clear trace on 2970.0025 Hz. Congratulations! I wonder why the postprocessing analysis takes so long. Apparently SpecL
Hi Markus, Thanks. The signal has a low SNR but is there clearly. About 50% of the data is passed now. The second half should be more clear. Let's wait until tomorrow to summarize the whole results.
Hi Stefan, You could use SOX software http://sox.sourceforge.net/ (command line in a batch file) or Audacity software http://www.audacityteam.org/ (windows) to combine the audio files. Regards, Edgar