<s>
HearFones	B-Algorithm
is	O
an	O
acoustic	O
,	O
non-electronic	O
instrument	O
that	O
enables	O
a	O
person	O
speaking	O
or	O
singing	O
to	O
hear	O
the	O
actual	O
sound	O
they	O
are	O
producing	O
.	O
</s>
<s>
HearFones	B-Algorithm
is	O
a	O
patented	O
instrument	O
that	O
enables	O
a	O
person	O
speaking	O
or	O
singing	O
to	O
hear	O
the	O
actual	O
sound	O
of	O
the	O
voice	O
they	O
are	O
producing	O
.	O
</s>
<s>
HearFones	B-Algorithm
fit	O
over	O
the	O
head	O
and	O
redirect	O
sound	O
binaurally	O
from	O
the	O
mouth	O
to	O
the	O
ears	O
using	O
ellipsoidal	O
reflectors	O
,	O
one	O
focus	O
of	O
which	O
is	O
at	O
the	O
user	O
's	O
mouth	O
and	O
the	O
other	O
focus	O
at	O
the	O
ear	O
canals	O
.	O
</s>
<s>
While	O
similar	O
in	O
concept	O
to	O
traditional	O
"	O
hand	O
cupping	O
,	O
"	O
this	O
more	O
accurate	O
representation	O
of	O
the	O
user	O
's	O
voice	O
effects	O
an	O
immediate	O
change	O
in	O
the	O
way	O
the	O
user	O
speaks	O
or	O
sings	O
,	O
as	O
they	O
intuitively	O
modify	O
their	O
vocal	O
habits	O
to	O
create	O
a	O
voice	O
that	O
they	O
prefer	O
HearFones	B-Algorithm
are	O
used	O
by	O
amateur	O
and	O
professional	O
singers	O
,	O
vocal	O
coaches	O
speech-language	O
pathologist	O
patients	O
and	O
new-language	O
learners	O
to	O
build	O
new	O
,	O
or	O
to	O
modify	O
existing	O
,	O
muscle-memory	O
patterns	O
and	O
to	O
modify	O
breathing	O
patterns	O
The	O
device	O
has	O
also	O
been	O
used	O
to	O
teach	O
a	O
child	O
with	O
learning	O
disabilities	O
and	O
auditory	O
processing	O
issues	O
how	O
to	O
blend	O
in	O
with	O
their	O
school	O
singing	O
group	O
.	O
</s>
<s>
Peer-reviewed	O
research	O
on	O
the	O
effects	O
of	O
HearFones	B-Algorithm
shows	O
that	O
HearFones	B-Algorithm
users	O
make	O
immediate	O
and	O
unprompted	O
changes	O
in	O
their	O
voice	O
that	O
are	O
regarded	O
as	O
an	O
improvement	O
by	O
skilled	O
evaluators	O
and	O
that	O
reflect	O
more	O
efficient	O
vocal	O
use	O
.	O
</s>
