News

Sound Field Synthesis Toolbox 1.0.0 released

The Sound Field Synthesis Toolbox is a tool to work with the spatial audio methods Wave Field Synthesis and Higher Order Ambisonics in Matlab/Octave. It allows for numerical simulations of sound fields in the time and frequency domain. Furthermore, with the generation of binaural simulations of multichannel loudspeaker setups it allows for creating stimuli for listening tests in order to evaluate different sound field synthesis methods.

After a few years of work, today we finally are coming up with the 1.0.0 release.
You can download the latest release and you should have a look at the tutorial on github how to use it.

sfs-1.0.0

NEWS:
– added references for all driving functions
– streamlined nested conf settings; e.g. now it is no longer neccessary to set conf.ir.hcompfile if conf.usehcomp == false
– added WFS driving functions from Völk et al. and Verheijen et al.
– removed secondary_source_number() and xy_grid, because they are no longer needed
– enabled pre-equalization filter of WFS as default in SFS_config_example()
– fixed sound_field_mono_sdm_kx()
– Green’s function for line sources returns now real values
– correct y-direction of plane waves for 3D NFC-HOA
– updated the test functions in the validation folder
– several small fixes

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Illustration of the Human Auditory System

If you want to talk about the auditory system to your students it is sometimes hard to find free material like illustrations of the phenomenon. Here, we provide an illustration that is available under the Creative Commons license and can be used for all purposes. The image is available as png, svg, eps, pdf.

auditory_perception

The parts highlighted in blue are the auditory path way starting with the cochlea and ending in the auditory cortex.
In between marks are highlighting the processing steps starting at the cochlear nucleus, superior olivary complex, and lateral lemniscus in the brainstem going further to the inferior colliculus in the midbrain and the medial geniculate body in the thalamus.

The idea for this illustration is borrowed from B. Grothe, M. Pecka, and D. McAlpine Mechanisms of Sound Localization in Mammals. The cochlea and outer ear is from L. Chittka and A. Brockmann, Perception space–the final frontier. The sketch of the brain is based on K. Talbot et al, Synaptic dysbindin-1 reductions in schizophrenia occur in an isoform-specific manner indicating their subsynaptic location.

This entry was posted in Media on by .