Dante Certification Final Exam Questions and Answers.
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Course
Dante Certification
Institution
Dante Certification
Dante Certification Final Exam Questions and Answers.Dante Certification Final Exam Questions and Answers.Dante Certification Final Exam Questions and Answers.
Dante Certification Final Exam Questions and
Answers.
On a Dante network, there must be a different clock leader for each sample rate on the
network. - ANS False. One Clock Master will provide synchronization to all Dante
devices, regardless of their individual sample-rates or frame rates..
An audio subscription (connection) can be established between two Dante interfaces
operating at different bit depths. - ANS True. Like most digital audio devices, Dante
devices will usually be able to add missing bits or truncate extraneous bits to match the
expected internal operation.
The sample rate of an audio system
dictates: - ANS the audio resolution in time. According to the Nyquist Theorem, the
sample rate must be at least twice the highest audio frequency to be captured.
The bit depth of an audio system
dictates: - ANS the resolution of the audio signal's amplitude. A greater bit depth
increases dynamic range.
A Dante audio subscription (connection) can be established between two Dante
interfaces operating at different audio sample rates - ANS False. Each Dante interface
can only operate at one sample rate at a time. If a sample rate converter is employed, it
will sit behind the Dante network port.
Dante audio is sent: - ANS Uncompressed, bit-perfect.
What audio sample rates are supported by Dante? - ANS Dante supports most common
sample rates from 44.1kHz to 192kHz.
If we increase the sample rate of a device from 48KHz to 96KHz, what is the impact to
the network? - ANS A 96kHz subscription will require (roughly) twice as much
bandwidth as a 48kHz subscription.
Roughly how many channels of 24-bit, 48kHz audio can be carried on a 1 Gbps
connection? - ANS 512x512
A 1Gbps network switch can manage more Dante channels than a single 1Gbps link
can. - ANS True. A non-blocking network switch will be able to handle the total of all
ports capacity at all times.
STUDY GUIDE 2 - ANS
Dante AV can support multiple
codecs. However, the initial products
, will transport video in what format? - ANS Compressed using a visually lossless
JPEG2000 codec.
The JPEG 2000 codec initially included in the Dante AV module is used in 65% of digital
cinema rooms today. It is visually lossless,
supporting both video and computer graphics (like spreadsheets and slide
presentations). - ANS True. The JPEG2000 offers sharp quality and intense colour
definition with a visual accuracy adopted by most professional uses.
Dante AV devices sends and receives audio uncompressed so it is completely
compatible with Dante audio devices. - ANS True. As audio and video are transported
separately as independent essences, it is possible for a Dante AV device to send its
audio channels to a Dante Audio device and vice-versa.
Interlaced video draws all the odd lines, then all the even lines. This creates two "fields"
for each frame. - ANS TRUE. The interlaced signal contains two fields of a video frame
captured consecutively. This enhances motion perception to the viewer, and reduces
flicker.
Dante AV devices have a scaler in it.
What does the scaler affect? - ANS The scaler can adapt screen resolution. (i.e. - it can
scale a 4K source to 1080p for display)
Which answer best describes the JPEG2000 encoding process? - ANS There is a
"visually lossless" impact on the first encoding, but JPEG 2000 can decode and encode
over and over with no further loss.
In Dante AV, with the JPEG2000 codec
and a 1 Gbps connection, what
resolution and frame rates are
currently supported? - ANS Up to 4K (4096 x 2160) at 60fps
The JPEG 2000 codec commonly
used in Dante AV processes video
frames in groups. If a packet is
corrupted, the picture will
automatically recover when the
current group of frames ends and the
next keyframe arrives. It could be
several frames. - ANS False. The JPEG2000 codec is the best example of intraframe
encoding, applying a compression algorithm to each frame captured individually, not
built up from multiple frames, so they can be compressed and
transmitted out quickly to reduce latency.
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