[linux-audio-dev] console JACK metering using ecasignalview

Hi, yesterday I released ecasound-2.2.0-pre4 (approaching next stable release, yay!), which has a few JACK-specific improvements: - new command-line syntax for specifying inputs and outputs, see: http://www.wakkanet.fi/~kaiv/ecasound/Documentation/users_guide/html_uguide… - uses the new alsa_pcm:capture_x + playback_X syntax (requires JACK 0.40 or newer ==> CVS!) You can find the package at: http://ecasound.seul.org/download/ecasound-2.2.0-pre4.tar.gz And now to the main point: 2.2.0-pre4 comes with an updated version of ecasignalview. Combined with the new JACK syntax, ecasignalview now suits quite well for monitoring JACK-clients. The basic syntax is: ecasignalview -b:XXX -f:32,YYY,ZZZ jack_auto,foo_client null ... where: XXX = buffersize (jackd's -p:XXX) YYY = number of channels you want to monitor ZZZ = sample rate (jackd's -r:ZZZ) foo_client = any JACK client which uses out_X style port names The meters are drawn with ncurses, while values are queried through the ECI API (ie. ecasignalview is only linked against libc and libstdc++, not for instance against libjack). The output looks like: http://eca.cx/screenshots/ecasound-2.2.0-pre4_ecasignalview.png ... there are a few known bugs, but in general it works quite well. While not really a huge challenge for Steve's meterbridge ;), should be of interest to some of you. -- http://www.eca.cx Audio software for Linux!