<s>
Time-domain	B-Algorithm
harmonic	I-Algorithm
scaling	I-Algorithm
(	O
TDHS	O
)	O
is	O
a	O
method	O
for	O
time-scale	O
modification	O
of	O
speech	O
(	O
or	O
other	O
audio	O
signals	O
)	O
,	O
allowing	O
the	O
apparent	O
rate	O
of	O
speech	O
articulation	O
to	O
be	O
changed	O
without	O
affecting	O
the	O
pitch-contour	O
and	O
the	O
time-evolution	O
of	O
the	O
formant	O
structure	O
.	O
</s>
