On Mon, Sep 09, 2019 at 05:37:33PM +0100, Marco Ippolito wrote: > Trying to understand the CSound Cpp API examples: https://github.com/csound/csoundAPI_examples/tree/master/cpp > [....] > (base) marco@marco-U36SG:~/csoundCppAPIexamples$ ./GetStringChannelExample > 0dBFS level = 32768.0 > --Csound version 6.10 (double samples) 2018-01-27 > [commit: none] > libsndfile-1.0.28 > UnifiedCSD: test2.csd ^^^^^^ It's the csd file you're using that's specifying output to 'hw:0,0". Look at the third line in it. If you leave out the '-o dac:hw:0,0' argument, the output will be to (the default) "test.wav". If you don't want any output at all, use '-o null' or simply just '-n' -- Pete -- Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here