<s>
Lossless	B-Algorithm
Transform	I-Algorithm
Audio	I-Algorithm
Compression	I-Algorithm
(	O
LTAC	O
)	O
is	O
a	O
compression	O
algorithm	O
developed	O
by	O
Tilman	O
Liebchen	O
,	O
Marcus	O
Purat	O
and	O
Peter	O
Noll	O
at	O
Institute	O
for	O
Telecommunications	O
,	O
Technical	O
University	O
Berlin	O
(	O
TU	O
Berlin	O
)	O
,	O
to	O
compress	O
PCM	B-Algorithm
audio	I-Algorithm
in	O
a	O
lossless	B-Algorithm
manner	O
,	O
unlike	O
conventional	O
lossy	B-Algorithm
audio	O
compression	O
algorithms	O
(	O
like	O
MP3	B-Application
)	O
.	O
</s>
<s>
LTAC	O
will	O
not	O
be	O
developed	O
any	O
further	O
since	O
it	O
has	O
been	O
superseded	O
by	O
its	O
successor	O
Lossless	B-Algorithm
Predictive	I-Algorithm
Audio	I-Algorithm
Compression	I-Algorithm
(	O
LPAC	O
)	O
,	O
which	O
is	O
based	O
on	O
linear	O
prediction	O
.	O
</s>
<s>
LPAC	O
has	O
become	O
official	O
standard	O
as	O
MPEG-4	O
Audio	B-Algorithm
Lossless	I-Algorithm
Coding	I-Algorithm
.	O
</s>
