Codec Tieline Gateway User Manual page 248

248 Gateway and Gateway 4 Manual v1.2
the connection you are setting up. Please see the following table for details on the connection
requirements of the different algorithms available.
Algor-
ithm
Linear/PCM
(Uncom-
pressed)
Tieline Music
Tieline Music-
PLUS
G.711
G.722
MPEG Layer 2
Audio Algor- IP bit
Band- ithm ic per channel
Delay
w idth
16/24 bit 0ms sample rate x
up to bits per
45kHz sample x no.
channels;
512kbps
minimum
(16bit;32kHz)
to 4.6 Mbps
(24bit; 96
kHz)
Up to 20ms 24 kbps
15kHz minimum
Up to 20ms 48 kbps
22kHz minimum
(Optimized
for 64kbps
per audio
channel)
3kHz 1ms 64kbps
minimum
7kHz 1ms 64kbps
minimum
Up to 24 to 64kbps
22kHz 36ms minimum
rate IP over- Audio Quality and
head per Features
connectio
n
80kbps · Full bandw idth,
perfect audio
quality for voice
and music
· No error
concealment/corr
ection or artifacts
16kbps · High quality voice
and music
· Very low delay
at low bit rates
16kbps · Very high quality
voice and music
· Very low delay
at low to
moderate bit-
rates
80kbps · Low quality 3kHz
POTS phone
quality audio
· Very low delay
at moderate bit
rates
80kbps · Good quality
7kHz voice
· Better quality
than a standard
POTS phone call
· Very low delay
at moderate bit
rates
8.5 - · Very high quality
13.3kbps voice and music
· Low to moderate
delay at
Recom m ended
applications for on-air
use
· Extremely high quality
PCM linear
uncompressed audio
for STLs and audio
distribution.
· Ideal for fiber or high
bandw idth links.
· Great for live voice or
music remotes as w ell
as STLs and audio
distribution w ith limited
connection bandw idth
(e.g. POTS or 3G
w ireless)
· Suitable w hen
bidirectional
communication
betw een announcers
is required
· Deliver 15kHz stereo
over 1 x 64kbps ISDN
B Channel.
· Very high quality, very
low delay STLs and
audio distribution
· Remote connections
able to achieve
48kbps for each audio
channel
· Suitable w hen
bidirectional
communication
betw een announcers
is required
· Highly compatible w ith
other brands of audio
codec
· Low quality and used
generally for
compatibility
· Highly compatible w ith
other brands of audio
codec
· Good voice quality
audio for remotes and
other voice quality
applications
· Highly compatible w ith
other brands of audio
codec
© Tieline Research Pty. Ltd. 2021