Dante Exam/47 Questions with
Answers (Dante Level 1)
What audio sample rates are supported by Dante? - -Dante supports most
common sample rates from 44.1kHz to 192kHz.
-On a Dante network, there must be a different clock leader for each sample
rate on the network. - -False. One Clock Master will provide synchronization
to all Dante devices, regardless of their individual sample-rates or frame
rates..
-A 1Gbps network switch can manage more Dante channels than a single
1Gbps link can. - -False. The maximum amount of channels in a 1Gbps
network switch is 512x512 at 96kHz.
-A Dante audio subscription (connection) can be established between two
Dante interfaces operating at different audio sample rates. - -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: - -Uncompressed, bit-perfect.
-Roughly how many channels of 24-bit, 48kHz audio can be carried on a 1
Gbps connection? - -512x512
-The sample rate of an audio system dictates: - -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.
-An audio subscription (connection) can be established between two Dante
interfaces operating at different bit depths - -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 bit depth of an audio system dictates: - -the resolution of the audio
signal's amplitude. A greater bit depth increases dynamic range.
-If we increase the sample rate of a device from 48KHz to 96KHz, what is the
impact to the network? - -A 96kHz subscription will require (roughly) twice
as much bandwidth as a 48kHz subscription.
-Dante AV devices sends and receives audio uncompressed so it is
completely compatible with Dante audio devices. - -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.
-What factors significantly affect the overall bandwidth demands of a
compressed video flow? (Select all that apply.) - -The video frame resolution
(i.e. - 1080p vs 4K)
The chroma sampling (i.e. - 4:4:4 vs 4:2:0)
The frame rate (ie 24fps vs 60fps)
-On a Dante network, a single clock leader is established to manage all
audio sample rates and video frame rates. - -True. A single Clock Leader on
the network is able to keep all followers synchronised, regardless of their
sample-rates or frame-rates.
-Interlaced video draws all the odd lines, then all the even lines. This creates
two "fields" for each frame. - -TRUE. The interlaced signal contains two fields
of a video frame captured consecutively. This enhances motion perception to
the viewer, and reduces flicker.
-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). - -
True. The JPEG2000 offers sharp quality and intense colour definition with a
visual accuracy adopted by most professional uses.
-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. - -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.
-In Dante AV, with the JPEG2000 codec and a 1 Gbps connection, what
resolution and frame rates are currently supported? - -Up to 4K (4096 x
2160) at 60fps
-Which answer best describes the JPEG2000 encoding process? - -There is a
"visually lossless" impact on the first encoding, but JPEG 2000 can decode
and encode over and over with no further loss.
-Dante AV devices have a scaler in it. What does the scaler affect? - -The
scaler can adapt screen resolution. (i.e. - it can scale a 4K source to 1080p
for display)
Answers (Dante Level 1)
What audio sample rates are supported by Dante? - -Dante supports most
common sample rates from 44.1kHz to 192kHz.
-On a Dante network, there must be a different clock leader for each sample
rate on the network. - -False. One Clock Master will provide synchronization
to all Dante devices, regardless of their individual sample-rates or frame
rates..
-A 1Gbps network switch can manage more Dante channels than a single
1Gbps link can. - -False. The maximum amount of channels in a 1Gbps
network switch is 512x512 at 96kHz.
-A Dante audio subscription (connection) can be established between two
Dante interfaces operating at different audio sample rates. - -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: - -Uncompressed, bit-perfect.
-Roughly how many channels of 24-bit, 48kHz audio can be carried on a 1
Gbps connection? - -512x512
-The sample rate of an audio system dictates: - -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.
-An audio subscription (connection) can be established between two Dante
interfaces operating at different bit depths - -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 bit depth of an audio system dictates: - -the resolution of the audio
signal's amplitude. A greater bit depth increases dynamic range.
-If we increase the sample rate of a device from 48KHz to 96KHz, what is the
impact to the network? - -A 96kHz subscription will require (roughly) twice
as much bandwidth as a 48kHz subscription.
-Dante AV devices sends and receives audio uncompressed so it is
completely compatible with Dante audio devices. - -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.
-What factors significantly affect the overall bandwidth demands of a
compressed video flow? (Select all that apply.) - -The video frame resolution
(i.e. - 1080p vs 4K)
The chroma sampling (i.e. - 4:4:4 vs 4:2:0)
The frame rate (ie 24fps vs 60fps)
-On a Dante network, a single clock leader is established to manage all
audio sample rates and video frame rates. - -True. A single Clock Leader on
the network is able to keep all followers synchronised, regardless of their
sample-rates or frame-rates.
-Interlaced video draws all the odd lines, then all the even lines. This creates
two "fields" for each frame. - -TRUE. The interlaced signal contains two fields
of a video frame captured consecutively. This enhances motion perception to
the viewer, and reduces flicker.
-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). - -
True. The JPEG2000 offers sharp quality and intense colour definition with a
visual accuracy adopted by most professional uses.
-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. - -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.
-In Dante AV, with the JPEG2000 codec and a 1 Gbps connection, what
resolution and frame rates are currently supported? - -Up to 4K (4096 x
2160) at 60fps
-Which answer best describes the JPEG2000 encoding process? - -There is a
"visually lossless" impact on the first encoding, but JPEG 2000 can decode
and encode over and over with no further loss.
-Dante AV devices have a scaler in it. What does the scaler affect? - -The
scaler can adapt screen resolution. (i.e. - it can scale a 4K source to 1080p
for display)
