Technical Specification
Reference Guide: EN8000 MPEG-4 Part 10 (H.264/AVC) Encoders
Page B-7
ST.RE.E10233.1
B.1.2 Audio
Analogue and Digital Audio
Table B.9: Analogue and Digital Audio Specification
Item
Specification
Safety status
SELV
Connector designation
AUDIO IN
Connector type
15-way, D-type male connector
Input standard (analogue)
Balanced
analogue
Clip level
12 dB, 15 dB, 18 dB, 21dB, 22 dB and 24 dB
(15 dB available with PCB issue 4 and later)
Sampling rate
48 kHz
Input impedance
600
Ω
or 20 k
Ω
(selectable). 20 k
Ω
= default
Input standard (digital)
AES/EBU
digital
Termination 110
Ω
Sampling rate
48 kHz
Input rate
32, 48 kHz
Output (digital) ref
AES/EBU
digital
Impedance 75
Ω
Sampling rate
48 kHz
Coding Standards
Coding standard (1)
Supported coding modes
Supported coded data rate
MPEG-2 AAC
Stereo only
64 kbit/s - 128 kbit/s
Coding standard (2)
Supported coding modes
Supported coded data rate
MPEG-4 HE-AAC
Stereo only
48 kbit/s - 128 kbit/s
Coding standard (3)
Supported coding modes
Supported coded data rate
MPEG-4 HE-AAC V2
Stereo only
32 kbit/s - 128 kbit/s
Coding standard (4)
Supported coding modes
Supported coded data rate
MPEG-1 Layer 2 (ISO/IEC 13818)
Single Mono, Dual Mono, Joint Stereo, Stereo
32 kbit/s - 384 kbit/s
Coding standard (5)
Supported coding modes
Supported coded data rate
Dolby Digital (ATSC A/52, DVB TR 102 154)
1/0, 2/0
56 k - 640 kbit/s
Coding standard (6)
Dolby Digital Pass-through (ATSC A/52, DVB TR 102 154) (see
Note 1
, after this Table)
NOTES…
1. Refer
to
Annex F, Audio Modes
when using this coding standard.
2. Problems may be experienced with some Receivers if the Encoder and Decoder are not using the
same version of SMPTE 302M specification, e.g. either 1998 or 2000. The Encoder can be
set up to work in either standard.
3. The digital audio input does not support SPDIF.
CAUTION…
When the unit is not powered the audio input defaults to digital with 110
Ω
termination.
