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Topics - cannam

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46
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

47
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

48
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


49
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

50
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

51
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

52
Plugin Development / Vamp Plugin Tester v1.0 released
« on: September 25, 2009, 16:15:48 »
Version 1.0 of the Vamp plugin tester, a simple program that loads and tests Vamp plugins for various common failure cases, is now available.  This is the second release, and the first "non-experimental" one.

The tester can't check whether you're getting the right results, but it can help you write more resilient and better-behaved plugins.

Source code:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0.tar.gz

OS/X universal binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0-osx-universal.tar.gz

Windows binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0-win32.zip

Linux 32-bit binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0-i686-linux.tar.gz

Linux 64-bit binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0-amd64-linux.tar.gz

Solaris 32-bit x86 binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-1.0-i686-solaris.tar.gz

There is some documentation in the README file, but the short version is that you run it at a command prompt with the library name and plugin name, colon-separated, as an argument:

$ ./vamp-plugin-tester vamp-example-plugins:spectralcentroid

... and see what it has to say about your plugins.  It may also crash; if it crashes in the middle of one of its tests, that usually means that your plugin has crashed when faced with some unexpected input (run it in a debugger, or a memory checking utility if you have one, to find out where).


Chris

53
Plugin Development / Vamp plugin SDK v2.1 now available
« on: September 25, 2009, 16:12:23 »
Vamp SDK version 2.1 is now available

Version 2.1 of the Vamp plugin SDK is now available.

   http://www.vamp-plugins.org/

Vamp is a plugin API for audio analysis and feature extraction plugins written in C or C++.  Its SDK features an easy-to-use set of C++ classes for plugin and host developers, a reference host implementation, example plugins, and documentation.  It is supported across Linux, OS/X, Windows, and Solaris/x86.

A documentation guide to writing plugins using the Vamp SDK can be found at http://www.vamp-plugins.org/guide.pdf.

Version 2.1 is a maintenance release which contains a number of bug fixes and a new set of skeleton source code files for use by plugin developers.  All of the fixes are relevant to host code only: there is no need to recompile or re-link any plugins that have been linked with 2.0 against the new release.

Credits

This work was carried out at the Centre for Digital Music, Queen Mary, University of London.  It was funded by the EPSRC through the OMRAS2 project EP/E017614/1.  See http://omras2.org/ for more information.


Chris

54
Plugin and Host Announcements / Vamp plugin SDK v2.1 released
« on: September 25, 2009, 16:11:18 »
Vamp SDK version 2.1 is now available

Version 2.1 of the Vamp plugin SDK is now available.

   http://www.vamp-plugins.org/

Vamp is a plugin API for audio analysis and feature extraction plugins written in C or C++.  Its SDK features an easy-to-use set of C++ classes for plugin and host developers, a reference host implementation, example plugins, and documentation.  It is supported across Linux, OS/X, Windows, and Solaris/x86.

A documentation guide to writing plugins using the Vamp SDK can be found at http://www.vamp-plugins.org/guide.pdf.

Version 2.1 is a maintenance release which contains a number of bug fixes and a new set of skeleton source code files for use by plugin developers.  All of the fixes are relevant to host code only: there is no need to recompile or re-link any plugins that have been linked with 2.0 against the new release.

Credits

This work was carried out at the Centre for Digital Music, Queen Mary, University of London.  It was funded by the EPSRC through the OMRAS2 project EP/E017614/1.  See http://omras2.org/ for more information.


Chris

55
Plugin and Host Announcements / QM Vamp Plugins v1.6 now available
« on: July 16, 2009, 15:38:12 »
Version 1.6 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 major feature release which adds four new plugins (adaptive
spectrogram, polyphonic transcription, wavelet scalogram, and
bar-and-beat tracker) and a new method for the beat tracker.

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

56
Plugin and Host Announcements / Sonic Visualiser v1.6 now available!
« on: July 06, 2009, 14:49:46 »
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 1.6 of Sonic Visualiser is now available.

  http://www.sonicvisualiser.org/

This is a bugfix release.  For details, please read the release notes at:

  https://sourceforge.net/project/shownotes.php?release_id=695075

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.  Vamp plugins for onset,
pitch and note detection, tempo tracking, chromagram analysis,
constant-Q spectrogram, spectral centroid, power curve, key
estimation, tonal change detection, harmonic spectrogram, adaptive
multi-resolution spectrogram, structural segmentation, note
transcription, wavelet scaleogram, timbral similarity, audio alignment
calculation and a large number of low-level spectral features are
available.  There is also a comprehensive SDK for use by developers
of Vamp plugins and hosts.  For more information about Vamp plugins,
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 1.6 release is available now as binaries for Linux,
OS/X, and Windows, and in source code form.


Chris

57
Plugin and Host Announcements / Sonic Annotator v0.2 released
« on: March 20, 2009, 20:20:09 »
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.

Version 0.2 is now available, offering more stable and predictable
results than the earlier 0.1.

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

58
Plugin Development / Vamp Plugin Tester: a simple test utility for plugin development
« on: March 20, 2009, 16:24:12 »
Announcing v0.1 of the Vamp plugin tester, a simple program that loads and tests Vamp plugins for various common failure cases.  It can't check whether you're getting the right results, but it can help you write more resilient and better-behaved plugins.

Source code:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-0.1.tar.bz2

OS/X universal binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-0.1-osx-universal.tar.bz2

Windows binary:
http://downloads.sourceforge.net/vamp/vamp-plugin-tester-0.1-win32.zip

There is some documentation in the README file, but the short version is that you run it at a command prompt with the library name and plugin name, colon-separated, as an argument:

$ ./vamp-plugin-tester vamp-example-plugins:spectralcentroid

... and see what it has to say about your plugins.  It may also crash; if it crashes in the middle of one of its tests, that usually means that your plugin has crashed when faced with some unexpected input (run it in a debugger, or a memory checking utility if you have one, to find out where).

This tester does report some genuine bugs when run against several of the existing Vamp plugins.  I'll be aiming to make some fixes where I'm able.

This is only the first release, so it's quite likely that the tester hasn't been tested enough itself yet.  Report any problems here, please!


Chris

59
Plugin and Host Announcements / Sonic Visualiser v1.5 now available!
« on: March 17, 2009, 13:31:03 »
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 1.5 of Sonic Visualiser is now available.

  http://www.sonicvisualiser.org/

This release contains a small number of new features and a larger
number of bug fixes over the previous 1.4 release.  For more details,
please read the release notes at:

  https://sourceforge.net/project/shownotes.php?release_id=668854

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.  Vamp plugins for onset,
pitch and note detection, tempo tracking, chromagram analysis,
constant-Q spectrogram, spectral centroid, power curve, key
estimation, tonal change detection, harmonic spectrogram, structural
segmentation, timbral similarity, audio alignment calculation and a
large number of low-level spectral features are available.  There is
also a comprehensive SDK for use by developers of Vamp plugins and
hosts.  For more information about Vamp plugins, 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 1.5 release is available now in source code form
or as binaries for Linux, OS/X, and Windows.


Chris

60
Host Forum: Sonic Visualiser / New example video on audio alignment
« on: March 06, 2009, 17:12:54 »
I've recently posted a video example of audio alignment using Sonic Visualiser and the MATCH Vamp plugin (which SV will use to do automatic alignment, if it is installed):

    http://vimeo.com/3310893

At the moment it lacks any sort of voiceover or explanatory subtitles -- I may well go back and add some, but this was my first attempt at videoing anything on that particular platform so it's pretty simplistic.

There is also a written tutorial on this subject, linked from the documentation page:

    http://sonicvisualiser.org/documentation.html


Chris

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