Sound Research
Effects of Geometric Sound on Brainwave Activity Patterns, Autonomic Nervous System
Markers, Emotional Response, and Faraday Wave Pattern Morphology
Abstract:
This study introduces Geometric Sound as a subfield of spatial sound featuring audio stimuli which are sonic holograms of mathematically defined 3D shapes. The effects of Geometric Sound on human physiology were investigated through EEG, heart rate, blood pressure, and a combination of questionnaires monitoring 50 healthy participants in two separate experiments. The impact of Geometric Sound on Faraday wave pattern morphology was further studied. The shapes examined, pyramid, cube, and sphere, exhibited varying significant effects on autonomic nervous system markers, brainwave power amplitude, topology, and connectivity patterns, in comparison to both the control (traditional stereo), and recorded baseline where no sound was presented. Brain activity in the Alpha band exhibited the most significant results, additional noteworthy results were observed across analysis paradigms in all frequency bands. Geometric Sound was found to significantly reduce heart rate and blood pressure and enhance relaxation and general well-being. Changes in EEG, heart rate, and blood pressure were primarily shape-dependent, and to a lesser extent sex-dependent. Pyramid Geometric Sound yielded the most significant results in most analysis paradigms. Faraday Waves patterns morphology analysis indicated that identical frequencies result in patterns that correlate with the excitation Geometric Sound shape. We suggest that Geometric Sound shows promise as a noninvasive therapeutic approach for physical and psychological conditions, stress-related disorders, depression, anxiety, and neurotrauma. Further research is warranted to elucidate underlying mechanisms and expand its applications.
A Taxonomy of Sound-Induced Faraday Wave Phenomena
Abstract:
Nonlinear standing waves known as Faraday waves are formed in vibrating liquids enclosed by a container. In an effort to further our understanding of the relation between frequency and wave propagation within spatial boundaries we present a taxonomy to classify the variety of the observed resonant phenomena. This taxonomy includes some new definitions and suggests a unified language for describing wave propagation phenomena. We investigated the observed resonant phenomena and complex nonlinear dynamics utilising the Cymascope instrument, which works by transposing sound periodicities to water molecule periodicities.
Effects of Sound Immersion on In Vitro Blood Cells
Abstract:
The effects of sound and mechanical vibrations on blood flow and in vitro and in vivo blood cells were previously reported in various studies. Frequency-based stimulation and sound vibrations were shown to have a positive effect on peripheral blood flow, blood aggregation, Red Blood Cells longevity and enhanced release of Nitric Oxide which supports improved blood oxygenation. Different frequencies were also reported to have discrete effects on cells and physiological mechanisms. In this preliminary study, we investigated the effect of 20 minutes exposure to audible sound stimuli comprising recordings of spatial sound projections of a singing bowl at 40 Hz and 73 Hz compared to 20 minutes silence in a Faraday cage (control) on in vitro Red Blood Cells and White Blood Cells. We find that the sound stimuli have a highly significant effect on the longevity of both Red and White Blood Cells with a differentiation in effect across frequencies and projections compared to control. Results could indicate a cost-effective treatment to support improved soundness of blood transfusions as well as non-invasive interventions to increase circulating blood cells.
Self and Communal Healing by Vocalizing Chakra Toning Sounds
While Dancing in Raves and Parties
Abstract:
While dancing in raves and parties people tend to spontaneously vocalize vowels which accurately resemble what is commonly known as Chakra Toning Sounds. This sonic observation raises the hypothesis that people instinctively and intuitively heal themselves by balancing and activating their own chakras with their voice. To test and verify this hypothesis a survey was conducted in which 96 participants were asked to share their experience about the voices they produce and hear in raves and parties while dancing. The majority of participants reported to use their voice and hear others use their voice with Chakra Toning Sounds. An interesting observation suggests that a communal effect is created by this action, in which self healing informs and encourages communal (group) healing, possibly underlying collaborative and collective healing.
Deviations in Sound Waves Associated with Physiological and
Psychological State
Abstract:
Sound waves are known to be affected by the presence of a human subject in the acoustic environment. Deviations in sound waves are dependent on the position, posture and body mass of the subject, and show consistent variance dependent on the subject and the sound stimulus. To arrive at a better understanding of the nature of this dependency, deviations in sound waves in the presence of a human subject were measured in an acoustic test environment, in conjunction with measurements reporting the physiological and psychological state of the subject. We find that the absorption or amplification of sound waves in response to the subject is directly proportional to the amplitude of the brain activity of the subject, where the amplification of both sound waves and brain activity is associated with increased positive valence and decreased negative valence experienced by the subject. We discuss the potential of these findings for future research and applications.