I do quite a lot of walking to music.
I noticed that you may be not so aware of the internal shockwave of your footstep, but
the shockwave makes your headphone move a bit on your head/ears. It is difficult to
suppress this sound/touch altogether.
regards.
Leon
On 23 Jan 2014, at 12:27, Luca Turchet <turchet.luca@xxxxxxxxx> wrote:
Hi Linda,
Bruno definitively suggested you the relevant literature.
You might be interested also in my project "Audio-haptic walking simulations
for virtual reality, entertainment and rehabilitation applications", which is
basically a follow up of the NIW project mentioned before.
I am using synthesis techniques based on physical and physically-inspired models to
simulate footstep sounds produced by different grounds, shoe types, walkers with different
anthropomorphic features, and different types of foot-floor interactions.
Have a look to http://www.ahws-project.net/
Thanks a lot Victor for sharing that interesting link.
Does any of you know if there is any study on the bone conduction occurring during walking?
The topic is very interesting to me. For example perceptual effects might arise when
providing through headphones the interactive simulation of a foostep on a ground different
from that the walker is trampling on. Indeed, maybe beside to a semantic or temporal
conflict between the auditory and the haptic sensory information during the integration of
the two stimuli, there might be also a conflict between the auditory information arriving
through the air and the bones.
Any useful information about this topic would be very appreciated.
If someone of you is interested in starting a collaboration to investigate such a topic
using the technology I am developing please contact me.
Best
Luca
--
---------------------------------------------------------------
www.lucaturchet.it
"Music is a moral law:
It gives a soul to the Universe,
wings to the mind,
flight to the imagination,
a charm to sadness,
and life to everything.
It is the essence of order,
and leads to all that is good,
just and beautiful,
of which it is the invisible,
but nevertheless dazzling,
passionate, and eternal form".
Plato, 400 B.C. (from the Dialogues)On Thu, Jan 23, 2014 at 9:19 AM, Victor Benichoux <victor.benichoux@xxxxxx> wrote:
Hi all,You may also be interested in reading this blog post by Romain Brette:Best,VictorOn 22 Jan 2014, at 16:20, Mark Riggle <markriggle@xxxxxxxxxxxxxxx> wrote:So search for heel strike transient. The audible effect however seems ignored - only the high skeletal jerk is investigated.How interesting you would be interested in the footstep. The human walk is unique in producing that particular sound heard internally via the skeleton. Our footstep has the foot hitting the floor with only a vertical velocity (the horizontal is at or nearly zero). The foot-bones stop so rapidly that the force on them causes a compression wave to start there. That wave travels up the skeleton to the skull -- that causes a high G (>1g) jerk on the head. That is what is heard and vestibularly felt -- that shockwave is passing through the skull. This is only in the human walk. In human adults it is referred to as the heel strike transient.However, the earlier developmental walks (infant and young child), although mechanically different, will also produce that audible shockwave.
What is interesting to me is this is the same pattern that occurs with very loud rock-music. The walk produces about 120 bpm of a vestibular jolt (that could produce a VEMP response) that is also audible, and when rock-music is louder than about 95 dB, it does the same.
That is not a coincidence that these are only in humans. There are some other human unique behaviors supporting that claim.If you do a study on the acoustic part of that shockwave, please let me know.On Tue, Jan 21, 2014 at 11:45 AM, Linda Seltzer <lseltzer@xxxxxxxxxxxxxxxxxx> wrote:
When we walk, we can hear our footsteps, even if we are walking barefoot
on a soft surface. However, the number of steps per second in walking is
below the auditory range. What is it about the impact with the ground
that causes the auditory signal? Are there papers on the acoustics of a
footstep?
Thank you for any information.
Linda Seltzer
-----------------------------------------------------------------
www.lucaturchet.it
"Music is a moral law:
It gives a soul to the Universe,
wings to the mind,
flight to the imagination,
a charm to sadness,
and life to everything.
It is the essence of order,
and leads to all that is good,
just and beautiful,
of which it is the invisible,
but nevertheless dazzling,
passionate, and eternal form".
Plato, 400 B.C. (from the Dialogues)