supports them. This is determined by running ``configure --help'' in
do-configure target and set the shell variable _LATE_CONFIGURE_ARGS
which is then passed to CONFIGURE_ARGS.
- Remove --mandir and --infodir in ports' Makefile where applicable
Few ports use REINPLACE_CMD to achieve the same effect, remove them too.
- Correct some manual pages location from PREFIX/man to MANPREFIX/man
- Define INFO_PATH where necessary
- Document that .info files are installed in a subdirectory relative to
PREFIX/INFO_PATH and slightly change add-plist-info to use INFO_PATH and
subdirectory detection.
PR: ports/111470
Approved by: portmgr
Discussed with: stas (Mk/*), gerald (info related stuffs)
Tested by: pointyhat exp run
XAnalyser is a program to analyse a stereo audio signal. It has two displays:
Frequency Spectrum
Using Fast Fourier Transform, the time domain of the signal is transformed into
the frequency domain, i.e. the amplitude (in logarithmic scale) of the
audio signal is plotted versus the frequency. Either the sum of the
left and right channel of the audio signal can be shown or both
channels simultaneously.
XY Scope
Roughly speaking, the audio signal of left channel deflects a point
horizontally and the right channel vertically (just as the beam of a CRT
would do). Thus, an audio signal only present on the left channel produces
a horizontal line, whereas an audio signal only present on the right channel
produces a vertical line. A mono signal produces a 45 degree line.
A stereo signal creates a wilde pattern (if the phase is correct,
predominately in the same direction as a mono signal) or may even fill
the entire scope.
WWW: http://arvin.schnell-web.net/xanalyser/
PR: 105059
Submitted by: Diane Bruce <db@db.net>
Approved by: tmclaugh (mentor)
