aubio

0.4.6 released

A new version of aubio, 0.4.6</a>, is now available.

yinfast</code>, a new version of the YIN pitch detection algorithm, that uses spectral convolution to compute the same results as the original yin</code>, but with a cost O(N log(N))</code>, making it much faster than the plain implementation (O(N^2)</code>) </li>

Intel IPP</a> optimisations (thanks to Eduard Mueller), available for Linux, MacOS, Windows, and Android </li>
improved support for emscripten</a> (thanks to Martin Hermant), which compiles the aubio library as a javascript module and lets you run aubio's algorithm directly from within a web-page. </li> </ul> 0.4.6</a> also comes with several bug fixes and improvements. Many thanks to Eduard Mueller (@emuell), Martin Hermant (@MartinHN), Hannes Fritz (@hztirf), Stuart Axon (@stuaxo), Jörg (@7heW4yne), ssj71 (@ssj71), Andreas Borg (@borg), Rob (@mlrobsmt) and everyone else for their valuable contributions and input. read more after the break...</a>



Analyzing songs online
When built with ffmpeg</a> or
libav</a>, aubio</a> can read most existing
audio and video
formats</a>,
including compressed and remote</strong> video streams. This feature lets you
analyze directly audio streams from the web.</p>
A powerful tool to do this is
youtube-dl</code></a>, a python program which
downloads video and audio streams to your hard-drive. youtube-dl</code> works not
only from youtube, but also from a large number of
sites</a>.</p>
Here is a quick tutorial to use aubio</code> along with youtube-dl</code>.</p>
read more after the break...</a></p>


0.4.5 released
A new version of aubio, 0.4.5</a>, is available.</p>
This version features:</p>

a new aubio</code> python command line tool to extract information from sound
   files</li>
improved default parameters for onset detection, using adaptive spectral
   whitening and compression</li>
support for libswresample</li>
</ul>
New options --miditap-note</code> and --miditap-velo</code> have been added to
aubioonset</code> and aubiotrack</code> to adjust the note and velocity of the midi note
emitted by onsets and beats.</p>
0.4.5</a> also comes with a bunch of fixes, including
improved documentation, build system fixes, and platform compatibility.</p>
Many thanks to Martin Hermant (@MartinHM), Sebastian Böck (@superbock), Travis
Seaver (@tseaver) and others for their help and contributions.</p>
read more after the break...</a></p>


0.4.4 released
A new version of aubio, 0.4.4</a>, is available.</p>
This version features a new log module that allows redirecting errors,
warnings, and other messages coming from libaubio. As usual, these messages are
printed to stderr</code> or stdout</code> by default.</p>
Another new feature is the --minioi</code> feature added to aubioonset</code>, which lets
you adjust the minimum Inter-Onset Interval (IOI) separating two consecutive
events. This makes it easier to reduce the number of doubled detections.</p>
New demos have been added to the python/demos</code> folder, including one using the
pyaudio module to read samples from the microphone in real time.</p>
0.4.4</a> also comes with a bunch of fixes, including
typos in the documentation, build system improvements, optimisations, and
platform compatibility.</p>
read more after the break...</a></p>


Sonic Runway takes aubio to the Playa
We just learned that aubio</a> was at Burning
Man</a> this year, thanks to the amazing work of Rob Jensen
and his friends on the Sonic Runway</a>
installation.</p>


</a></p>
Sonic Runway</a> — photo by George Krieger</p>
</div>

Burning Man</a> is an annual gathering
that takes place in the middle of a vast desert in
Nevada</a>. For its 30th edition,
about 70,000 people attended the festival this year.</p>


</a></p>
Sonic Runway</a> — photo by Jareb Mechaber</p>
</div>

The idea behind Sonic Runway</a> is to visualise the
speed of sound</em> by building a 300 meter (1000 feet) long corridor,
materialized by 32 gates of colored lights.</p>
Each of the gates would illuminate at the exact moment the sound, emitted from
one end of the runway, reaches them.</p>
The light patterns were created on the fly, using aubio</a> to
analyze the sound in real time and have the LED lights flash in sync with the music.</p>
To cover the significant cost of hardware, the whole installation was funded
by dozens of backers in a successful crowd-funding
campaign</a>.</p>
read more after the break...</a></p>