©
KRAMER ELECTRONICS LTD.
Issue 1-16 May 30, 2017
20
4.3.5
Audio Output
Audio embedded in HDMI and SDI video streams is passed through the system and re-embedded into
the HDMI and SDI output signals.
Also, the unit features a S/PDIF coaxial digital audio output connector for monitoring audio of the HDMI
and SDI channel.
When HDMI is selected as the input channel, the HDMI EDID is read by a video source such as a Blu- Ray
Player. The unit allows the source to provide the formats shown under output formats for HDMI in the
below table. All formats are re-embedded into the HDMI output data stream, those which are not
allowed on the SDI or SPDIF output are muted on the individual channels.
Table 2: Embedded HDMI & SDI Output Audio Formats
Output Channel
Output Format
HDMI
PCM up to 8ch, up to 24Bit, up to 192kHz sampling rate
(incl. 32kHz,44.1kHz,48kHz,96kHz,192kHz)
SDI
PCM up to 8ch, up to 24Bit, 48kHz sampling rate
SPDIF
PCM up to 2ch, up to 24Bit, up to 96kHz sampling rate
(incl. 32kHz,44.1kHz,48kHz,96kHz)
The unit will not pass through any Dolby Digital, MPEG2 or DTS audio formats
4.4
Analog Audio
Units supporting audio include up-to 8 analog stereo Inputs, two microphone Inputs with phantom
power and an audio mixer.
Analog stereo signals are connected to the unit via 3.5 mm jack sockets, except for the CV input that is
associated with two RCA connectors. Using the audio menu, any video input can be link with any
audio input and mixed with the mic inputs.
Audio models also include stereo audio power amplifier supporting 15W RMS loudspeaker per output
and separate stereo balanced line level audio outputs for external amplifier systems. The analog
stereo outputs are available on two phoenix connectors.
The user can turn off the
unit’s HDCP compliance to allow non-encrypted content to pass
through the unit. This is an important feature specially when using a MAC computer as the
source. The MAC will encrypt its output signal if a compliant device is seen attached to its
output regardless of the copy protection requirements of the content. By turning off HDCP,
the MAC will see a non-compliant device and therefore will not encrypt its output. When
HDCP compliance is turned off, encrypted sources will not be displayed.