I'm trying to generate a wav file (96kHz rate) containing just a 30kHz tone, and then play it in a Sony PCM-M10 recorder. Are these the correct commands: sox -r 96000 −n 30k.wav synth 60 sine 30000 sox 30k.wav -c 2 stereo30k.wav The second command is to create a stereo track, as I'm under the impression this recorder can't play mono files. At least that's what happens when I try to do the same thing in Audacity. When I try to play it in the recorder, it just says "unknown data", which is what it says if I try to play a mono file I created in Audacity. That makes me think it's the second command that's got the problem. Peter Shute ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140 _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users