<s>
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
or	O
EFR	O
or	O
GSM-EFR	B-Algorithm
or	O
GSM	B-Algorithm
06.60	I-Algorithm
is	O
a	O
speech	B-Application
coding	I-Application
standard	O
that	O
was	O
developed	O
in	O
order	O
to	O
improve	O
the	O
quality	O
of	O
GSM	O
.	O
</s>
<s>
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
was	O
developed	O
by	O
Nokia	O
and	O
the	O
Université	O
de	O
Sherbrooke	O
(	O
Canada	O
)	O
.	O
</s>
<s>
In	O
1995	O
,	O
ETSI	O
selected	O
the	O
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
voice	B-Application
codec	I-Application
as	O
the	O
industry	O
standard	O
codec	O
for	O
GSM/DCS	O
.	O
</s>
<s>
The	O
coding	O
scheme	O
is	O
the	O
so-called	O
Algebraic	B-Algorithm
Code	I-Algorithm
Excited	I-Algorithm
Linear	I-Algorithm
Prediction	I-Algorithm
Coder	O
(	O
ACELP	B-Algorithm
)	O
.	O
</s>
<s>
The	O
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
(	O
GSM	B-Algorithm
06.60	I-Algorithm
)	O
technical	O
specification	O
describes	O
the	O
detailed	O
mapping	O
between	O
input	O
blocks	O
of	O
160	O
speech	O
samples	O
in	O
13-bit	O
uniform	O
PCM	B-Algorithm
format	O
to	O
encoded	O
blocks	O
of	O
244	O
bits	O
and	O
from	O
encoded	O
blocks	O
of	O
244	O
bits	O
to	O
output	O
blocks	O
of	O
160	O
reconstructed	O
speech	O
samples	O
.	O
</s>
<s>
It	O
also	O
specifies	O
the	O
conversion	O
between	O
A-law	B-Algorithm
or	O
μ-law	B-Algorithm
(	O
PCS	O
1900	O
)	O
8-bit	O
PCM	B-Algorithm
and	O
13-bit	O
uniform	O
PCM	B-Algorithm
.	O
</s>
<s>
This	O
standard	O
is	O
defined	O
in	O
ETSI	O
ETS	O
300	O
726	O
(	O
GSM	B-Algorithm
06.60	I-Algorithm
)	O
.	O
</s>
<s>
ETSI	O
has	O
selected	O
the	O
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
voice	B-Application
codec	I-Application
as	O
the	O
industry	O
standard	O
codec	O
for	O
GSM/DCS	O
in	O
1995	O
.	O
</s>
<s>
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
was	O
also	O
chosen	O
as	O
the	O
industry	O
standard	O
in	O
US	O
market	O
for	O
PCS	O
1900	O
GSM	O
frequency	O
band	O
.	O
</s>
<s>
The	O
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
incorporate	O
several	O
patents	O
.	O
</s>
<s>
It	O
uses	O
the	O
patented	O
ACELP	B-Algorithm
technology	O
,	O
which	O
is	O
licensed	O
by	O
the	O
VoiceAge	O
Corporation	O
.	O
</s>
<s>
Enhanced	B-Algorithm
Full	I-Algorithm
Rate	I-Algorithm
was	O
developed	O
by	O
Nokia	O
and	O
the	O
Université	O
de	O
Sherbrooke	O
(	O
Canada	O
)	O
.	O
</s>
