[MacPorts] #61373: aubio: update to 0.4.9

[MacPorts]

#61373: aubio: update to 0.4.9
---------------------+--------------------
  Reporter:  grr     |      Owner:  (none)
      Type:  update  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  aubio   |
---------------------+--------------------

Comment (by ryandesign):

 Replying to [ticket:61373 grr]:
 > The current macports version, 0.4.6_1, seems to be missing the main
 program binary 'aubio' as well as 'aubiocut',

 According to the readme:

 > The python module comes with the following command line tools:
 >
 >  - `aubio` extracts informations from sound files
 >  - `aubiocut` slices sound files at onset or beat timestamps
 >
 > Additional command line tools are included along with the library:
 >
 >  - `aubioonset` outputs the time stamp of detected note onsets
 >  - `aubiopitch` attempts to identify a fundamental frequency, or pitch,
 for each frame of the input sound
 >  - `aubiomfcc` computes Mel-frequency Cepstrum Coefficients
 >  - `aubiotrack` outputs the time stamp of detected beats
 >  - `aubionotes` emits midi-like notes, with an onset, a pitch, and a
 duration
 >  - `aubioquiet` extracts quiet and loud regions

 The aubio port installs "the library" but not "the python module". If we
 were to offer the aubio python module, it would probably be in a py-aubio
 port.

 > though the manpages are present.

 It does seem weird to me to install the manpages but not the programs, but
 that's what aubio's build system apparently does; we're not doing anything
 special to cause this to happen. When we offer a py-aubio port, we should
 clean this up if we can so that the port that installs a program also
 installs its manpage.

-- 
Ticket URL: <https://trac.macports.org/ticket/61373#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS