Searching for Good Vibes...

 

psychoacoustics & watermarking wellbeing

This work is in partnership with Mark Sheppard.

Humans experience and perceive sound through more than just the human auditory system. Bone conduction and stimulation of both skin mechano-receptors and the brainstem may also play an important part in ultra-audible sound perception.

With the advent of high-resolution recording and playback systems, a proportion of the ultra-audible frequency spectrum can be utlised for metadata insertion, which in turn can be used to trigger hardware or to hold metadata in the form of, an ISRC (International Standard Recording Code), a website URL or audio track liner notes. The Sonic Quick Response Code (SQRC) algorithm was previously proposed as a method for encoding ultra-audible acoustic metadata within a 96 kHz audio file, and its perceptive impact was investigated through the application of in depth listening tests and Electroencephalogram (EEG) analysis.

This study is pioneering in that it employs a multidisciplinary approach to ultra-audible perception, bringing together the fields of psychoacoustics, watermarking and perceptual studies. The findings from this investigation will greatly influence a number of disciplines, producing potential enhancements to mental health therapies and wellbeing, through to ultra-audible coding strategies.