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Messages - cannam

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136
Plugin Development / Re: Loading Plug-in in Mac OS/X?
« on: November 16, 2009, 10:25:40 »
The "architecture" of the plugin (in this context) almost certainly refers to the processor for which it has been compiled (Intel or PowerPC).

The implication seems to be that your plugin was compiled with -arch ppc but you are running it on an Intel Mac, or that it was compiled with -arch x86 but you are running on PPC.


Chris

137
Plugin Development / Re: Loading Plug-in in Mac OS/X?
« on: November 08, 2009, 22:24:48 »

Hm, tricky sort of question to answer as it stands.  Can you try the "vamp-simple-host" command-line host, or the vamp-plugin-tester, or else try running Sonic Visualiser from a terminal window?  (To do the latter, run the program at "Sonic Visualiser.app/Contents/MacOS/Sonic Visualiser" in the SV bundle.)

Any of these should give you some more useful information at the terminal which indicates why it can't load your plugin.


Chris

138
Plugin Development / VamPy: Vamp plugins in Python
« on: October 28, 2009, 15:07:07 »
VamPy, a Python wrapper for the Vamp plugin API, is now available.

Using VamPy you can write audio analysis or visualisation plugins for use in Vamp hosts with a quick and dynamic environment that is somewhat like working in Matlab or other high-level modelling environments.  VamPy has full two-way support for NumPy, an efficient numerical library for Python, and for the dynamic typing of Python.

You can download VamPy from :
http://www.vamp-plugins.org/vampy.html

139
Plugin and Host Announcements / QM Vamp Plugins v1.6.1 now available
« on: October 28, 2009, 15:06:28 »
Version 1.6.1 of the QM Vamp Plugins -- a set of audio analysis plugins in the
Vamp plugin format, developed at the Centre for Digital Music at Queen Mary,
University of London -- is now available for download.

Plugins included are note onset detector, beat and barline tracker, tempo
estimator, key estimator, tonal change detector, structural segmenter, timbral
and rhythmic similarity, wavelet scaleogram, adaptive spectrogram, note
transcription, chromagram, constant-Q spectrogram, and MFCC calculation.

This is a bug-fix release, fixing a failure to correctly smooth the
onset detection function which caused the onset and beat tracking
plugins occasionally to miss onsets or find spurious ones.

For downloads, please see:

 http://isophonics.net/QMVampPlugins

The plugins are available in binary form only and may be freely used for any
purpose, and redistributed for non-commercial purposes only.  Supported
platforms are 32- and 64-bit Linux, 32-bit Windows, and OS/X 10.4 or newer
(Intel/PPC universal).

For documentation of these plugins, please see:

 http://www.vamp-plugins.org/plugin-doc/qm-vamp-plugins.html


Chris

140
Plugin and Host Announcements / Sonic Visualiser v1.7.1 now available
« on: October 28, 2009, 15:04:47 »
Sonic Visualiser is an application for inspecting and analysing the
contents of music audio files. It combines powerful waveform and
spectral visualisation tools with automated feature extraction plugins
and annotation capabilities.

Version 1.7.1 of Sonic Visualiser is now available.

 http://www.sonicvisualiser.org/

This release contains a small number of enhancements and bug fixes.
For more information, please read the change log at:

 https://sourceforge.net/projects/sv1/files/sonic-visualiser/1.7.1/CHANGELOG/download


Chris

141
Plugin and Host Announcements / VamPy: Vamp plugins in Python
« on: October 28, 2009, 15:02:04 »
VamPy, a Python wrapper for the Vamp plugin API, is now available.

Using VamPy you can write audio analysis or visualisation plugins for use in Vamp hosts with a quick and dynamic environment that is somewhat like working in Matlab or other high-level modelling environments.  VamPy has full two-way support for NumPy, an efficient numerical library for Python, and for the dynamic typing of Python.

You can download VamPy from :
http://www.vamp-plugins.org/vampy.html


142
Host Forum: Sonic Visualiser / Re: Problem in changing or erasing text
« on: October 28, 2009, 14:57:22 »
Well, I decided I might as well do a 1.7.1 release anyway -- so do try the proper 1.7.1 now it's out, and see whether that works any better.  The file on the /pre page (which I linked to in my earlier post) will be taken down again shortly.

Thanks,


Chris

143
Host Forum: Sonic Visualiser / Re: Sonic vis 1.7
« on: October 28, 2009, 10:19:29 »
Jonelle,

Sounds like perhaps you have "overlays" switched off.  Try View -> Show Standard Overlays (or the 7, 8, 9, 0 keys to adjust the amount of detail in the overlays).


Chris

144
Host Forum: Sonic Visualiser / Re: Problem in changing or erasing text
« on: October 27, 2009, 16:32:17 »

Hello -- If you're still there, any chance you could try out this new Windows test build?

  http://sonicvisualiser.org/pre/sv-win32-20091027.zip

(The zip file contains the Sonic Visualiser executable and nothing more.)

I've made some changes to the text tool and ideally I'd like to check whether they help the situation at all for you before I release.

Thanks!


Chris

145
Host Forum: Sonic Visualiser / Re: Problem in changing or erasing text
« on: October 12, 2009, 09:51:37 »
You are using the Text layer type?

I've just tested this and it does seem to work OK here.

What I did was:

 1. Layer -> Add New Text Layer (defaults to pencil tool)
 2. Click on new layer
 3. Dialog appears: Type some text, hit OK (label appears on layer)
 4. Switch to Edit tool
 5. Move mouse over the label (label turns to inverse colour scheme to show it's the one that will be edited)
 6. Double-click
 7. Dialog appears: Type new text, hit OK (text in label changes)
 8. Switch to Erase tool
 9. Move mouse over the label (label turns to inverse again)
 10. Click
 11. Label disappears

If the above sequence is the same as you are trying to do and it doesn't work for you, then there is clearly some problem -- at which of the above steps does it stop working properly when you try this?  And, which version of SV and which operating system are you using?

Thanks,


Chris

146
Plugin and Host Announcements / Sonic Annotator v0.4 available
« on: October 07, 2009, 07:55:55 »
Sonic Annotator is a utility program for batch feature extraction from
audio files.  It runs Vamp audio analysis plugins with specified
parameters on audio files, and writes the result features in a
selection of formats, in particular as RDF using the Audio Features
and Event ontologies, or as simple CSV files.

Version 0.4 is now available.

For more details and for downloads, please see

 http://www.omras2.org/SonicAnnotator

Sonic Annotator was developed at the Centre for Digital Music, Queen
Mary, University of London.  It was funded by the EPSRC through the
OMRAS2 project and is Free Software published under the GNU General
Public License.


Chris

147
Plugin and Host Announcements / Sonic Visualiser v1.7 now available!
« on: October 07, 2009, 07:54:57 »
Sonic Visualiser is an application for inspecting and analysing the
contents of music audio files. It combines powerful waveform and
spectral visualisation tools with automated feature extraction plugins
and annotation capabilities.

Version 1.7 of Sonic Visualiser is now available.

 http://www.sonicvisualiser.org/

This release contains a number of new features, enhancements, and
bug fixes.  For more details, please read the release notes at:

 https://sourceforge.net/projects/sv1/files/sonic-visualiser/1.7/CHANGELOG/download

Sonic Visualiser contains advanced waveform and spectrogram viewers,
as well as editors for many sorts of audio annotations. Besides
visualisation, it can make and play selections based on the locations
of automatically detected features, seamlessly loop playback of single
or multiple noncontiguous regions, synthesise annotations for
playback, slow down playback while retaining display synchronisation,
and show the ongoing alignment in time between multiple recordings of
a piece with different timings.

Sonic Visualiser supports the Vamp plugin API for plugins that extract
descriptive or analytical data from audio.  For more information
about Vamp plugins, including plugin downloads and resources for
developers, please see:

 http://www.vamp-plugins.org/

Sonic Visualiser was developed at the Centre for Digital Music, Queen
Mary, University of London:

 http://www.elec.qmul.ac.uk/digitalmusic/

Ongoing work on Sonic Visualiser and audio feature representation in
the semantic web is carried out as part of the OMRAS2 project funded
by the EPSRC.  See

 http://omras2.org/

for more information.

Sonic Visualiser is Free Software distributed under the GNU General
Public License.  The 1.7 release is available now in source code form
or as binaries for Linux, OS/X, Windows, and OpenSolaris.


Chris

148
Getting and Using Vamp Plugins / Re: VAMP_PATH
« on: October 06, 2009, 14:09:19 »
Mmm, thanks for the tip about upx.


Chris

149
Getting and Using Vamp Plugins / Re: VAMP_PATH
« on: October 02, 2009, 16:57:08 »

VAMP_PATH is an environment variable, not a file.  An environment variable is a setting within Windows that can be changed, or added, fairly readily by the user.  In this case, VAMP_PATH is something you can add that will be referred to by Vamp hosts (and will make no difference to any other aspect of your system).

To set it, go (in the normal Vista Start menu) to Computer -> Properties -> Advanced -> Environment Variables, then under User Variables add a new entry named VAMP_PATH with the (semi-colon separated) list of folders you want to set.

If you happen to be running command-line programs from a command prompt, then you can set this variable by typing e.g.

Code: [Select]
set VAMP_PATH=c:\path\to\folder;c:\path\to\other\folder

at the command prompt.

Note that this path completely overrides the default path used by hosts.  So if you want hosts to continue looking in C:\Program Files\Vamp Plugins as well as any other location you specify, you will need to make sure that folder is in your VAMP_PATH as well.

For example, to add "C:\Users\me\My Plugins" to the path as well as the default location, set VAMP_PATH to

Code: [Select]
C:\Users\me\My Plugins;C:\Program Files\Vamp Plugins


Chris

150
Plugin Development / New tutorials about how to get your first plugin to compile
« on: October 02, 2009, 09:46:56 »

There are two new tutorials now available on the (also new) wiki at this site, both entitled "From Method To Plugin" and describing how to get your code compiled and running as a Vamp plugin.  One tutorial covers OS/X, the other Windows.


I hope these are helpful!  If you find any errors, please let me know (or create an account on the wiki and correct them!)

The wiki homepage is at http://vamp-plugins.org/wiki/, and we'd welcome any contributions that might be interesting to other users or developers of plugins.


Chris

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