Albalá Ingenieros HAM3000C03, Manual, Page: 45 / 50

Albalá Ingenieros | Manual HAM3000C03
5. GLOSSARY
3G/HD/SD-SDI
3G/HD/SD - Serial Digital Interface for high definition or standard definition digital
television capable of transmitting bitrates of 2.970Gbit/s, 2.967Gbit/s, 1.485Gbit/s,
1.483Gbit/s and 270Mbit/s.
AES
Audio Engineering Society. International professional society dedicated to the
promotion of research and advances in audio technology. Their webpage is:
www.aes.org
AES/EBU
This acronym covers the combined AES and EBU standard for transmission of digital
audio. The standard defines a serial interface known as AES3 as per AES, EBU 3250-E as
per EBU or ITU-R BS.647-2 as per ITU. The interface originally transmitted two channels
(one pair) with PCM coding with a bit depth of 20 or 24 bit and a sampling frequency
between 32kHz and 192kHz. Today the interface is also used as a framework to
transmit digital signals that may or may not be audio with linear PCM encoding. The
physical interface defined by the original AES/EBU standard was a 110 ohm balanced
line. The AES3-id standard later defined the physical interface as a 75 ohm coaxial cable.
ATC
Ancillary Time Code. Ancillary data packet inserted into the digital video signal for
transmission of VITC or LTC information.
PCM
Pulse Code Modulation. A system by which a continuous time signal is sampled and
quantized for transmission via a series of coded pulses. When used with audio PCM is
understood to be the system used for sampling at regular, constant intervals using a
quantization of the samples that follows a lineal scale with regular intervals between
quantization steps (linear PCM).
SD
An abbreviation for SDTV (Standard Definition Television).
SD-SDI
Standard Definition - Serial Digital Interface. A serial digital interface capable of
transmitting standard definition television signals with bitrates of 143Mbit/s,
177Mbit/s, 270Mbit/s or 360Mbit/s.
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