ENC-300
™ H.264 HD Encoder
User Guide V 2.0
Teracue GmbH ∙ Schlossstr. 18 ∙ 85235 Odelzhausen ∙ Germany ∙ Tel: +49 (0)8134 555 10 ∙ Fax: +49 (0)8134 555 199 ∙ [email protected] ∙ www.teracue.com
Geschäftsführer: Wolfgang Schmiegelt
∙ Karl-Heinz Wenisch ∙ Amtsgericht München HRB 209259
100
6.7
Glossary
Term
Description
AAC
Audio Codec (Advanced Audio Codec) is an audio coding standard for lossy digital
audio compression.
AAC generally achieves better sound quality than MP3 at similar bit rates.
There are different AAC profile most used ones are:
LC-AAC (Low complexity) for medium to High Bitrate
HE-AAC (High efficiency) Hi efficiency is optimized for low Bitrate (32-80 kbit/s)
AES
With the 128 bit AES Encryption the TS is complete encrypted with all PID`s, but is
recognized as a Transport stream.
With Teracue Tools the encrypted TS can be recorded and playout with a constant
Bitrate (iCue Pump Lite), but only MC-Route is able for decrypting.
The Delay between Input and output is < 1 Frame.
ASI
The ‘Asynchronous Serial Interface’ is a streaming data format which carries an
Transport Stream (MPEG-TS).
An ASI signal can carry one or multiple SD, HD or audio programs that are already
compressed, as opposed to an uncompressed SDI Signal.
AVC
See H.264
BER
In digital transmission (DVB), the number of bit errors is the number of received bits of
a data stream over a communication channel that have been altered due to noise,
interference, distortion or bit synchronization errors.
The ‘bit error ratio’ is the number of bit errors per time.
The number should be very small like 0.0e-8 or better 0.0e-9
BISS
The ‘Basic Interoperable Scrambling System’ is a simple scrambling system.
BISS-1 transmissions are protected by a 12 digit hexadecimal "session key"
that is agreed by the transmitting and receiving parties prior to transmission.
The key is entered into both the encoder and decoder, this key then forms part
of the encryption of the digital TV signal and any receiver with BISS-support
with the correct key will decrypt the signal.
BISS-E (E for encrypted) is an variation where the decoder has stored one
secret BISS-key entered by for example a rights holder. This is unknown to the
user of the decoder. The user is then sent a 16-digit hexadecimal code, which
is entered as a "session key". This session key is then mathematically
combined internally to calculate a BISS-1 key that can decrypt the signal.
C/N
The ‘carrier-to-noise ratio’ closely related to the EB_NO, and is an important parameter
in digital communication or data transmission (DVB).
This ratio between Signal and noise should be high like 12.0 dB or better 14.0 dB
CAM
The ‘conditional access module’ is an electronic device, usually incorporating a slot for
a smart card, which equips an Integrated Digital Television or set-top box with the
appropriate hardware facility to view conditional access content that has been
encrypted using a conditional access system.
CBR
Constant Bitrate used in Encoding and in Multiplexing.
In Encoding difficult content will result in lower quality to have nearly a constant output.
In Transport stream additional packets are added to the stream to have a constant
stream. These Packets are called padding or stuffing packets and are thrown away
from the decoder.
CI
The ‘Common Interface’ allow to insert an CAM.
DVB
The ‘Digital Video Broadcasting’ is a suite of internationally accepted open standards
for digital television. DVB standards are maintained by the DVB Project, an international
industry consortium with more than 270 members, and are published by a Joint
Technical Committee (JTC) of the European Telecommunications Standards Institute
(ETSI) mostly used are:
DVB-C
– Cable
DVB-T or DVB-T2 - Terrestrial
DVB-S or DVB-S2 - Satellite
