A
u d i o T X W e b S t r e a m
F e a t u r e s & S p e c i f i
c a t i o n s . . . |
AudioTX
WebStream 3U-8 for live web audio streaming with broadcast
quality audio & transmission grade robustness.
- A
single AudioTX WebStream 3U-8 can encode audio in up to
12 different formats/bitrates.
- 4
Stereo (8 mono) inputs - can be ordered with Professional
balanced Analogue (8) or AES digital inputs (4).
- AudioTX
WebStream encodes in Professional Grade MPEG Layer 3 (MP3),
MPEG4 AAC and HE-AAC.
- When
used as the streaming server, can stream up to 12 audio
programmes, and can service a total of up to 25,000 clients*1.
- You
can use separate units to encode and stream (normally encoding
at the studio, streaming at the ISP location).
- Or
you can encode and stream from the same unit.
- Compatible
with Shoutcast/Icecast encoders and streaming servers.
- Dual
hot-swap redundant power supply option available.
- Incredibly
flexible and cost-effective solution.
AudioTX
WebStream encodes true broadcast quality audio and is a reliable,
transmission grade encoding and streaming server solution
for web streaming applications in radio stations.
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AUDIO
SPECIFICATIONS AND PROTOCOLS |
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Summary:
Choice
of Professional grade analogue balanced Stereo audio inputs
or AES/EBU digital audio inputs, external wordclock input. Audio
in/out at up to 24 bit, 96 kHz sample rate. |
|
Broadcast
quality encoding using MPEG Layer 3, MPEG4 AAC and HE-AAC.
Streaming server capable of serving up to 12 channels to a
total of up to 25,000 clients*1.
Can both encode and stream from the same unit.
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|
Detailed
specification: |
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| MPEG4
AAC: |
Professional
grade AAC coded audio at between 16 and 48 kHz sample rate,
16 bit, Mono, Stereo, Joint-Stereo and dual-mono modes. 24-320kbps. |
Provides
full-bandwidth broadcast quality stereo audio at bitrates between
64kbps and 320kbps. Near transparent Stereo audio from 64kbps.
150ms delay. |
MPEG4
HE-AAC and HE-AAC v2:
(High
Efficiency AAC, AACPlus): |
Offering
expectional audio quality at very low bitrates. HE-AAC coded
audio at between 32 and 48 kHz sample rate, 16 bit, Mono, Stereo,
and Parametric Stereo. 14 to 96 kbps. |
Provides
full-bandwidth excellent quality stereo audio at bitrates between
14kbps and 96kbps. 260ms delay. |
| MPEG
Layer 3 coded audio: |
Professional
MPEG Layer 3 coded audio at between 16 and 48 kHz sample rate,
16 bit, Mono, Stereo, Joint-Stereo and dual-mono modes. 32-320kbps. |
Provides
full-bandwidth broadcast quality stereo audio at bitrates between
128kbps and 384kbps. Mono audio from 64kbps. 125ms delay. |
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| Source
audio selection: |
User-selectable
channel inputs to each of the 12 audio encoding modules -
using any of the available inputs, and selecting a single
mono input channel, Stereo or MonoMix.
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NETWORK/ENCODING/STREAMING CAPABILITIES AND SPECIFICATIONS |
|
| Can
be used on all private and public IP networks.
|
Network
mode: TCP/IP
10/100/1000
Gigabit Ethernet interface.
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Audio
transmit/receive bitrates: |
14
to 320 kB/s per audio channel (per client). |
| Audio
Encoding: |
12
Encoder modules each able to encode in a separate audio format/bitrate
combination. |
Audio
Streaming: |
12
Streaming modules which can serve audio to, in total, up to
25,000 clients*1, and can each
source audio from:
- the
internal encoders
- an
encoder in a remote AudioTX WebStream unit
- an
existing web stream
- a
Shoutcast/Icecast capable encoder
|
| Fixed
and dynamic metadata/text information for audio encoding: |
Fixed
metadata configured in web-browser based management interface.
Dynamic
metadata can be updated for channels being encoded in 2 ways:
- RS232
interface
- IP
text based interface
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AUDIO,
NETWORK & DATA CONNECTIONS |
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Analog
audio inputs: |
Stereo
balanced inputs, 8x XLR (F) |
-18db
nominal signal level. +18db at analog inputs = 0dbFS (digital
full scale). |
| Digital
audio input: |
AES/EBU
digital input, 4x XLR (F) |
Input accepts
both AES/EBU and SPDIF type of signals. |
| Clock
input: |
Wordclock
input, BNC. |
System
clock-source is user-selectable: internal clock, wordclock input
or use clock from incoming AES/EBU source. |
| Metadata/text
ancillary data RS232 port: |
RS-232
serial connection for ancillary data in and out, D-Sub 9 pin
connector. |
Meta data
updates via this port or over IP network. |
| Network
Connection: |
Neutrik
Ethercon RJ45 connector, accepts standard RJ45 connector or
locking Ethercon cable.
|
10/100
Ethernet connection for TX, RX audio and web-management interface. |
AC
Power: |
Single
PSU: 96-264 VAC, 50-60Hz autosensing for worldwide operation.
Or optional
dual redundant power supply with hot-swap modules, each module:
96-264 VAC, 50-60Hz autosensing for worldwide operation.
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| *1
dependent
on network capacity and bitrate chosen. |
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