Silvet is a Vamp plugin for note transcription in polyphonic music.
http://code.soundsoftware.ac.uk/projects/silvet
** What does it do?
Silvet listens to audio recordings of music and tries to work out what
notes are being played.
To use it, you need a Vamp plugin host (such as Sonic Visualiser).
How to use the plugin will depend on the host you use, but in the case
of Sonic Visualiser, you should load an audio file and then run Silvet
Note Transcription from the Transform menu. This will add a note
layer to your session with the transcription in it, which you can
listen to or export as a MIDI file.
** How good is it?
Silvet performs well for some recordings, but the range of music that
works well is quite limited at this stage. Generally it works best
with piano or acoustic instruments in solo or small-ensemble music.
Silvet does not transcribe percussion and has a limited range of
instrument support. It does not technically support vocals, although
it will sometimes transcribe them anyway.
You can usually expect the output to be reasonably informative and to
bear some audible relationship to the actual notes, but you shouldn't
expect to get something that can be directly converted to a readable
score. For much rock/pop music in particular the results will be, at
best, recognisable.
To summarise: try it and see.
** Can it be used live?
In theory it can, because the plugin is causal: it emits notes as it
hears the audio. But it has to operate on long blocks of audio with a
latency of many seconds, so although it will work with non-seekable
streams, it isn't in practice responsive enough to use live.
** How does it work?
Silvet uses the method described in "A Shift-Invariant Latent Variable
Model for Automatic Music Transcription" by Emmanouil Benetos and
Simon Dixon (Computer Music Journal, 2012).
It uses probablistic latent-variable estimation to decompose a
Constant-Q time-frequency matrix into note activations using a set of
spectral templates learned from recordings of solo instruments.
For a formal evaluation, please refer to the 2012 edition of MIREX,
the Music Information Retrieval Evaluation Exchange, where the basic
method implemented in Silvet formed the BD1, BD2 and BD3 submissions
in the Multiple F0 Tracking task:
http://www.music-ir.org/mirex/wiki/2012:Multiple_Fundamental_Frequency_Esti…
Announcing a new C++ library and Vamp plugin implementing the Constant-Q
transform of a time-domain signal.
https://code.soundsoftware.ac.uk/projects/constant-q-cpp
The Constant-Q transform is a time-to-frequency-domain transform related
to the short-time Fourier transform, but with output bins spaced
logarithmically in frequency, rather than linearly. The output bins are
therefore linearly spaced in terms of musical pitch. The Constant-Q is
useful as a preliminary transform in various other methods such as note
transcription and key estimation techniques.
This library provides:
* Forward transform: time-domain to complex Constant-Q bins
* Forward spectrogram: time-domain to interpolated Constant-Q magnitude
spectrogram
* Inverse transform: complex Constant-Q bins to time domain
The Vamp plugin provides:
* Constant-Q magnitude spectrogram with high and low frequency extents
defined in Hz
* Constant-Q magnitude spectrogram with high and low frequency extents
defined as MIDI pitch values
* Pitch chromagram obtained by folding a Constant-Q spectrogram around
into a single-octave range
The code is provided with full source under a liberal licence, and
plugin binaries are provided for Windows, OS/X, and Linux.
The method is drawn from Christian Schörkhuber and Anssi Klapuri,
"Constant-Q transform toolbox for music processing", SMC 2010. See the
file CITATION for details. If you use this code in research work, please
cite this paper.
Hi everyone,
i'm happy to announce the final release of Hydrogen 0.9.6. I'm pretty
sure that most of the users are already working with a 0.9.6-beta
version, but here again is a small list of the most important changes in
0.9.6:
* new build system (cmake)
* add undo for song/pattern editor
* jack-session support
* jack-midi support
* several bug fixes
* tabbed interface
* several small changes to the GUI
* improve ExportSong add use of TimeLineBPM,
RubberbandBatch processor and different types of resample
interpolation
The release can be downloaded via github:
https://github.com/hydrogen-music/hydrogen/archive/0.9.6.tar.gz
At this time, this is a linux-only release. Installers for Windows / OS
X may follow in the future.
Big thanks to all those wonderful people who made this release happen
and who are keeping this project alive!
Best regards,
Sebastian
amsynth 1.5.0 is now available, with a host of improvements and new
features;
- new filter modes: notch and bypass
- new filter controls for key-tracking and velocity sensitivity
- OSC2 octave range increased
- ring modulation can now be dialled in (instead of on/off)
- LFO can now be routed to OSC1, OSC2, or both
- fixes an audible click when using fast filter attack times
- note and controller events are now rendered sample-accurate when run
as a plugin or JACK, fixing MIDI timing jitter
- DSSI & LV2 plug-in builds can now load any preset by right-clicking
the UI background
- bank & preset loading is now faster
Source code:
https://github.com/nixxcode/amsynth/releases/download/release-1.5.0/amsynth…
If you find any problems, please file a bug report @
http://code.google.com/p/amsynth/issues/list
Thanks to all who have helped by providing suggestions and feedback.
Nick
Hello all,
Here is the first release of jackwsmeter.
This is a small utility that gets the signal values of the audio that
flow through JACK ports and make the peak levels available over a
websocket link, it's a clean and efficient way to get an overview of
levels from a serie of jack servers.
It's available in git at http://repo.or.cz/w/jackwsmeter.git, it's
released under the GNU GPL v2 or later.
The release tag is http://repo.or.cz/w/jackwsmeter.git/tag/refs/tags/1
I hope it can be useful to some people.
Cheers,
Fred
A stable release, version 14.07, of MMA--Musical MIDI Accompaniment
is available for downloading. In addition to a number of bug fixes
and optimizations, MMA now features:
- Works with Python 2.7 or 3.x
- Plectrum articulate
- MIDI enhancements
- Lots of minor enhancements and bug fixes
Please read the file text/CHANGES-13 for a complete list of changes.
MMA is a accompaniment generator -- it creates midi tracks
for a soloist to perform with. User supplied files contain
pattern selections, chords, and MMA directives. For full details
please visit:
http://www.mellowood.ca/mma/
If you have any questions or comments, please send
them to: bob(a)mellowood.ca
--
**** Listen to my FREE CD at http://www.mellowood.ca/music/cedars ****
Bob van der Poel ** Wynndel, British Columbia, CANADA **
EMAIL: bob(a)mellowood.ca
WWW: http://www.mellowood.ca
So it's summer, they say.
White bright and light pastel colors sparkling on every corner and turn.
Cheesy and silly season, they say. Alas, southerners don't apply. Sorry
about that. Of course I mean the hemisphere, obviously.
For whom it might concern, all anxiety has come to an end.
Indeed.
It all relates back to this last May 3, when a not-so-formal meeting
(aka. workshop) took place while during LAC2014@ZKM-Karlsruhe, where
some pertinent and undeniable requests were dodged and framed to a
"soonish" implementation. And guess what?
Yup, the "soonish" are no more, or so I think.
Qtractor 0.6.2 (boson walk beta) is out!
Perhaps an additional word is due though, about the riddling code-names
that are branding the post-TYOQA beta releases. They have no personal
nor logical sense, I assure you. Perfectly arbitrary now. Everything in
life and the universe is way more unconventional than just a name.
Without further assay.
Qtractor is an audio/MIDI multi-track sequencer application written in
C++ with the Qt4 framework. Target platform is Linux, where the Jack
Audio Connection Kit (JACK) for audio and the Advanced Linux Sound
Architecture (ALSA) for MIDI are the main infrastructures to evolve as a
fairly-featured Linux desktop audio workstation GUI, specially dedicated
to the personal home-studio.
Release highlights:
* Plugins activation MIDI controller / automation (NEW)
* LV2 UI Idle and Show (>= Qt5) interface support (NEW)
* Discrete editing of automation curve node velues (NEW)
* Missing audio/MIDI files and plugins warning message (NEW)
* MIDI note drawing on tempo-map changes (FIX)
* Automation curves re-adjusted to tempo-map changes (FIX)
Website:
http://qtractor.sourceforge.net
Project page:
http://sourceforge.net/projects/qtractor
Downloads:
http://sourceforge.net/projects/qtractor/files
- source tarball:
http://download.sourceforge.net/qtractor/qtractor-0.6.2.tar.gz
- source package (openSUSE 13.1):
http://download.sourceforge.net/qtractor/qtractor-0.6.2-12.rncbc.suse131.sr…
- binary packages (openSUSE 13.1):
http://download.sourceforge.net/qtractor/qtractor-0.6.2-12.rncbc.suse131.i5…http://download.sourceforge.net/qtractor/qtractor-0.6.2-12.rncbc.suse131.x8…
- quick start guide & user manual (severely outdated, see wiki):
http://download.sourceforge.net/qtractor/qtractor-0.5.x-user-manual.pdf
- wiki (help wanted!):
http://sourceforge.net/p/qtractor/wiki/
Weblog (upstream support):
http://www.rncbc.org
License:
Qtractor is free, open-source software, distributed under the terms
of the GNU General Public License (GPL) version 2 or later.
Change-log:
- Prevent linear and spline automation curve modes for all integer
valued subjects. Also, make sure those values are rounded to the nearest
integer away from zero.
- Fixed save of LV2 Presets for plugins with state files.
- A man page has beed added (making up Gürkan Sengün's work on debian,
thanks).
- When moving plugins by eg. drag-and-dropping across tracks, automation
curves were being left behind, maybe leading to unpredictable mistaken
behavior. Hopefully, not anymore.
- Translations install directory change.
- Automation curves are now automatically re-adjusted to tempo map node
changes (after a ticket by Holger Marzen, thanks).
- Audio/MIDI files or plugins found missing on session load are now
subject for an explicit modal warning message and prompt for an
immediate session backup salvage.
- Changing instrument plugin programs is now an undo/redo-able command
operation, especially for DSSI but also for plugins that come with the
LV2 Programs interface extension support
(http://kxstudio.sourceforge.net/ns/lv2ext/programs).
- Drawing, selecting and/or resizing of MIDI note events that extend
across tempo/time-signature changes is now made a bit more correctly
over the MIDI clip editor (aka. piano-roll), especially regarding to
current snap-to-beat setting (after an outstanding ticket by yubatake,
thanks).
- Once again, audio frame/MIDI time drift correction has been slightly
refactored to improve MIDI input monitor and timing.
- Discrete automation curve node values may now be edited via a
numerical entry floating spin-box on double-click (as yet another
request by AutoStatic aka. Jeremy Jongepier, thanks).
- Pressing shift/ctrl keyboard modifiers while double-clicking on a
plugin list entry now briefly reverses the current
View/Options.../Plugins/Editor/Open plugin's editor (GUI) by default
option preference.
- Fixed an old crash lurker when switching output buses that implied a
change on the number of audio channels, while on tracks that have
(auto-)monitor turned on and at least one active plugin in chain (yet
another ticket by AutoStatic aka. Jeremy Jongepier, thanks).
- MIDI Controller assignment (aka MIDI learn) and/or automation of
plugins (de)activation state has been added (as requested by AutoStatic
aka. Jeremy Jongepier, thanks).
- LV2 UI Idle and Show interfaces support added.
- Allow the build system to include an user specified LDFLAGS (patch by
Alessio Treglia aka. quadrispro, thanks).
See also:
http://www.rncbc.org/drupal/node/795
Enjoy && have (lots of) fun.
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org
The Guitarix developers proudly present
Guitarix release 0.30.0
For the uninitiated, Guitarix is a tube amplifier simulation for
jack (Linux), with an additional mono and a stereo effect rack.
Guitarix includes a large list of plugins, support LADSPA plugs, and
now, new, as well LV2 plugs.
The guitarix engine is designed for LIVE usage, and feature ultra fast,
glitch and click free, preset switching, full Midi and/or remote
controllable (Web UI not included in the distributed tar ball).
Preset could organized in Banks, so a Bank could represent your "show".
If you have any issue with Preset loading/creating/handling, please read
here in our wiki how this stuff work in guitarix. It is straightforward,
and maybe more intuitive then you guess.
http://sourceforge.net/p/guitarix/wiki/EnhancedUI/#creating-presets
This release fix some bugs in our faust based zita-rev1 implementation,
add LV2 support to the guitarix racks and introduce some new plugs, GX
based and as well in the LV2 format.
new plugs:
* GxDetune (gx / LV2)
* Baxandall tonestack(gx)
* GxShimmizita ( LV2)
* GxSwitchedTremolo (LV2)
Please refer to our project page for more information:
http://guitarix.sourceforge.net/
Download Site:
http://sourceforge.net/projects/guitarix/
Forum:
http://guitarix.sourceforge.net/forum/
Please consider visiting our forum or leaving a message on
guitarix-developer(a)lists.sourceforge.net
<mailto:guitarix-developer@lists.sourceforge.net>
