Hello dear all, I am working on an acoustic project within tinyos-2.x environment. I am using telosB motes and EasySen expansion sensor board (SBTv80) to capture voice (microphone) and then transmit it to the BaseStation for further playback.
Captured sound sampled with 8 Khz and after receivement I convert pcm raw data (8 bits/sample, 8000 Hz) into wav file. It seems that I don't have any missing or bad packets. So from this point of view everything what I receive and save in the txt file is correct. My problem is that after converting pcm raw data it is too much noise in the resulting wav file. I can reckognize when there is a whistle or speech, but that is all what can be perceived. So I am not sure whether there is a problem with SBTv80 microphone itself or this can be due to conversion from txt to wav... I can also provide the code if necessary. If anybody have any suggestions about this problem I would highly appreciate your feedback! Thank you very much in advance. Igor _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
