for a complete beginner's intro to the fascinating world of neuroscience.
acoustics & signal processing
The fact that tone complexes with missing fundamentals can be perceived to have a pitch that is below their lowest frequency component can have counterintuitive consequences.
Consider the tone sequence shown in the spectrogram here:
This podcast by science journalist Dr Carinne Piekema explores how hearing loss affects people, in particular how it affects musicians, and what modern prosthetic devices such as hearing aids or cochlear implants can and cannot do for these patients. It contains insightful interviews with inspirational deaf musicians, some of the UKs leading hearing researchers, as well as simulations designed to show to normal listeners what it would be like to have to rely on a hearing aid or a cochlear implant.
You can listen to the podcast here,
Can this be done?
Is it possible to record the electrical brain pattern of a human in different states (walking, running, angry..etc..) and tranform these into sounds?
What would be the effects of playing this back to the subject?
I am considering this as my dissertation topic for my MSc, any ideas/ knowledge in this field are highly welcome!
The numbered squares signify the sound directions corresponding to a series of "virtual acoustic space" stimuli, which were generated by convolving a stimulus - in this case, a series of tapping sounds - with the head-related transfer function of one of the authors of this book.
Move the mouse cursor over the grid below to hear a harmonics complex tone with ILDs and ITDs as indicated.
You should listen to these sounds over headphones, and this demo may not work for you if you have a significant hearing loss in one ear, or if the sound card on your computer is of poor quality and does not separate the two stereo channels well.