Category Archives: Synthesis

AES Presentation on Owl Guitar Pedal

Martin Klang presented a talk on Open Source Entrepreneurship and the OWL discussing the OWL guitar pedal, creation through to production.

He discussed how the crowd funding sources, how to budget for small start up projects. The importance of open source, both in terms of software and hardware was discussed at length, and is a vital aspect of what the OWL team set out to do.

The OWL is a custom build programmable guitar effects pedal that allows anyone to write their own effect pedal and load it onto the standalone program. Effects can be written in C++, Faust or even Pure Data (PD). There is also a wrapper that allows users to run their patches as a VST or AU within a Digital Audio Workstation and in the future, it will also be possible to run patches in the browser. Recently a modular synthesiser version of the Owl has also been released.

Hoxton Owl Guitar Pedal

Listening In The Wild

Today, 28th August 2015, C4DM presented a one day workshop entitled Listening In The Wild, organised by Dan Stowell, Bob Sturm and Emmanouil Benetos.

The morning session presented a range of research including sound event detection using NMF and DTW techniques, understanding detectability variations of species and habitats, animal vocalisation synthesis through probabilistic models.

The post lunch session saw discussion on vocal modelling and analysis working towards understanding how animals produce their given associated sounds. Following this there was further discussion on NMF followed by work on using bird songs as part of a musical composition.

The poster session included work on auditory scene analysis, bird population vocalisation variations, CHiME: a sound source recognition dataset, technology assisted animal population size measures, bird identification through the use of identity vectors, and DTW for bird song dissimilarity.

Further information on the presenters and posters is avaliable here

Visiting Researcher

Over the past month, I have been working closely with visiting researcher Luca Turchet [http://www.lucaturchet.it/].

We have been working on perceptual evaluation of synthesised footstep sounds. Within the experiment that we ran, participants put on shoes with sensors mounted in them. The sound of different floor surfaces and shoe types is then synthesised, through quality noise blocking headphones, and the participants are then asked to shape the spectral content with the aid of some very basic audio filters.

The intended outcome is to identify the extent to which different participants will vary the spectral characteristics of their footsteps.

Further updates on this research to follow.

Teaching Electronics

Today I was working down at Sutton High School, teaching basic electronics to high school pupils. They learnt how to wire up an Arduinitar, a arduino based electric synthesis guitar with analog and digital control. This is part of Queen Marys outreach program.

More information on the Arduinitar is avaliable here http://www.eecs.qmul.ac.uk/~andrewm/arduinitar.html