<s>
Low	O
Latency	O
High-Definition	O
Audio	B-Algorithm
Codec	I-Algorithm
(	O
LHDC	B-Algorithm
)	O
is	O
an	O
audio	B-Algorithm
codec	I-Algorithm
technology	O
developed	O
by	O
Savitech	O
.	O
</s>
<s>
LHDC	B-Algorithm
allows	O
high-resolution	O
audio	O
streaming	O
over	O
Bluetooth	B-Protocol
.	O
</s>
<s>
It	O
is	O
a	O
high-quality	O
Bluetooth	B-Protocol
codec	O
based	O
on	O
the	O
A2DP	O
Bluetooth	B-Protocol
protocol	O
and	O
allows	O
a	O
bit-rate	O
of	O
up	O
to	O
900	O
kbit/s	O
compared	O
to	O
SBC	B-General_Concept
's	O
bit	O
rate	O
of	O
345	O
kbit/s	O
.	O
</s>
<s>
LHDC	B-Algorithm
is	O
an	O
alternative	O
to	O
Bluetooth	B-Protocol
SIG	O
's	O
SBC	B-General_Concept
and	O
LC3	B-General_Concept
codecs	O
.	O
</s>
<s>
Its	O
main	O
competitors	O
are	O
Qualcomm	O
's	O
aptX-HD/aptX	O
Adaptive	O
and	O
Sony	O
's	O
LDAC	B-Algorithm
codec	I-Algorithm
.	O
</s>
<s>
Starting	O
from	O
Android	B-Application
10	I-Application
,	O
enumeration	O
constant	O
symbols	O
for	O
LHDC	B-Algorithm
and	O
LLAC	O
are	O
part	O
of	O
the	O
Android	O
Open	O
Source	O
Project	O
,	O
enabling	O
every	O
OEM	O
to	O
integrate	O
this	O
standard	O
into	O
their	O
own	O
Android	O
devices	O
freely	O
.	O
</s>
<s>
Older	O
versions	O
of	O
Android	O
require	O
LHDC/LLAC	O
enumeration	O
constant	O
symbols	O
to	O
be	O
implemented	O
by	O
the	O
smartphone	B-Application
manufacturers	O
or	O
Android	O
app	O
.	O
</s>
<s>
Android	O
apps	O
with	O
this	O
type	O
of	O
LHDC	B-Algorithm
support	O
include	O
Savitech	O
's	O
Hi-Res	O
BT	O
Player	O
,	O
FiiO	O
Music	O
,	O
HIFIMAN	O
Music	O
and	O
DA&T	O
Audio	O
.	O
</s>
<s>
LHDC	B-Algorithm
supports	O
bitrates	O
of	O
400/560/900kbit/s	O
,	O
bit-depth	O
of	O
up	O
to	O
24bit	O
and	O
sample	O
rate	O
of	O
up	O
to	O
96kHz	O
.	O
</s>
<s>
The	O
first	O
Smartphone	B-Application
to	O
support	O
LHDC	B-Algorithm
was	O
the	O
Huawei	B-Application
Mate	I-Application
10	I-Application
.	O
</s>
<s>
On	O
17	O
September	O
2019	O
,	O
the	O
Japan	O
Audio	O
Society	O
(	O
JAS	O
)	O
certified	O
LHDC	B-Algorithm
with	O
their	O
Hi-Res	O
Audio	O
Wireless	O
certification	O
.	O
</s>
<s>
Currently	O
the	O
only	O
codecs	O
with	O
the	O
Hi-Res	O
Audio	O
Wireless	O
certification	O
are	O
LHDC	B-Algorithm
and	O
LDAC	B-Algorithm
.	O
</s>
<s>
Low	O
Latency	O
Audio	B-Algorithm
Codec	I-Algorithm
(	O
LLAC	O
)	O
is	O
also	O
called	O
LHDC	B-Algorithm
LL	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
the	O
high	O
definition	O
wireless	O
audio	O
technology	O
from	O
LHDC	B-Algorithm
,	O
but	O
designed	O
for	O
low	O
latency	O
and	O
features	O
an	O
auto-detect	O
gaming	O
mode	O
.	O
</s>
<s>
The	O
first	O
Smartphone	B-Application
to	O
support	O
LLAC	O
was	O
the	O
Huawei	B-Application
P30	I-Application
.	O
</s>
<s>
On	O
2	O
September	O
2018	O
the	O
Hi-Res	O
Wireless	O
Audio	O
(	O
HWA	O
)	O
Union	O
was	O
formed	O
to	O
promote	O
LHDC	B-Algorithm
adoption	O
.	O
</s>
