Audinate Dante Level 1

On a Dante Network, there must be a different clock leader for each sample rate on the network.

One clock leader 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?

A nonblocking network switch will be able to handle the total of all ports capacity at all times.

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.

A Dante audio subscription (connection) can be established between two Dante interfaces operating at different audio sample rates.

Each Dante interface can only operate at one sample rate at a time.

What audio sample rates are supported by Dante?

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?

A 96kHz subscription will require (roughly) twice as much bandwidth as a 48kHz subscription.

The bit depth of an audio system dictates:

the resolution of the audio signals amplitude. A greater bit depth increases dynamic range.

The sample rate of an audio system dictates:

the audii resolution in time. According to the Nyquist Theorem, the sample rate must be at least twice the highest audio frequency to be captured.

Dante audio is sent:

uncompressed, bit-perfect.

Roughy how many channels of 24-bit,48kHz audio can be carried on a 1Gbps connection?

512x512

Dante AV devices send and receive uncompressed audio and is completely compatible with Dante audio devices

Dante AV devices transport audio and video in separate essences so it is possible for a Dante AV device to send its audio channels to a Dante Audio device and vice-versa

Dante AV is available in a variety of video codecs. What video codec is used by "Dante AV Ultra" that was discussed in this class?

Compressed using a visually lossless JPEG2000 codec.

Dante AV Ultra uses a JPEG2000 video codec and a 1Gbps connection. What is its maximum supported resolution(s) and frame rate(s)?

Expressions here are shown in resolution, interlaced/progressive, framerate. For example, 1080p30 means 1920x1080, progressive, 30fps.

Up to 4Kp60

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)

Which answer best describes the JPEG2000 encoding process?

There is a "visually lossless" impact on the first encoding. Further encode/decode processes will experience no further loss.

Interlaced video draws all the odd lines, then all the even lines. This creates two "fields" for each frame.

The interlaced signal contains two fields of a video frame captured consecutively. This enhances motion perception to the viewer, and reduces flicker.

JPEG2000 codecs are used in digital cinema rooms today. It is visually lossless, providing excellent results for both video and computer graphics (like spreadsheets and slide presentations).

The JPEG2000 offers sharp quality and intense colour definition with a visual accuracy. It is well-adopted in professional use cases.

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.

A single Clock Leader on the network is able to keep all followers synchronised, regardless of their sample-rates or frame-rates.

JPEG2000 codecs process 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.

The JPEG2000 codec is an intraframe codec capturing each frame individually.

Which IP Range is not designated for use on a local network?

8.8.__.__

Many Dante products will provide a Dante port and "Manufacturer Control" port that is totally separate. The separate port might be used to remote control a mixer, program a DSP, or steer a PTZ camera.

How do you set the IP address for the manufacturer's control port?

Read the instruction manual for the product. Setting the manufacturer's control port is unrelated to Dante, and thus it can be different for each product line.

On a network switch, any cable can plug in anywhere. However, a best practice for cable management is to start

-from the first port working your way up and

- from the last port working your way backwards.

network endpoints, trunk lines

If a device has obtained an IP address using Link Local, which IP configuration would be within its subnet

IP Address: 169.254.189.23 Subnet Mask: 255.255.0.0

Neutrik etherCON ports must be populated by Neutrik etherCON cables.

The Neutrik etherCON port provides an RJ45 at the center and thus it does accept standard Ethernet cables.

What IP addressing methods are available for Dante devices? (Select all that apply.)

DHCP Dynamic Host Configuration Protocol

Link Local

Static IP Addressing

Which statements are true about Dante and switches to connect them? (Select two.)

Some Dante devices can daisy-chain, allowing small systems to run without the need for an external network switch.

Unmanaged switches may be fine for small systems.

Many Dante products will provide a Dante port and "Manufacturer Control" port that is totally separate. The separate port might be used to remote control a mixer, program a DSP, or steer a PTZ camera.

When this manufacturer control port is provided, it is sometimes exposed on its own network connection, sometimes it is merged with an internal network switch so it appears through the Dante Primary port.

True

False

Which of these are network topology methods were discussed for connecting Dante and Dante AV devices? (Select two.)

star

spiral

daisy chain (also known as switched)

hook and ladder

When using category cable, what type is recommended?

CAT5e or better.

When choosing a network switch, what minimum speed is suggested?

1 Gbit switch

Which statement is true about PoE:

Each PoE device will draw only the power it needs. Manufacturers typically list the power draw of their PoE devices - you can add the total plus a cushion (perhaps 20%).

Tell me about Energy Efficient Ethernet (EEE)

It should be disabled on Dante network (or any real-time network). While it can save a bit of energy, it is known to cause data interruptions that can skew clocking (synchronization) and cause audio/video dropouts.

If a device has an IP address of 192.168.15.12 and a subnet mask of 255.255.255.0, which IP address would be within its subnet?

192.168.15.101

What type of network connections should be used to transport Dante traffic? (Select all that apply.)

Fiber optic connections - common for 1Gbit or faster in link lengths of 300m-500m. These can go for kilometers.

CAT5e or better for 1Gbit links up to 100m in length.

WiFi can only be used for control data. No audio or video media will be transported on WiFi.

A single computer can run Dante Virtual Soundcard and Dante Via at the same time.

False

Dante devices remember their settings and automatically restore on power loss or manual restart. Dante Controller does not need to be present on the network for this to happen.

True

What features does Dante Via offer that are not found in Dante Virtual Soundcard? (Select two.)

Routes programs to each other inside the computer

Sample Rate Conversion

Dante transmitters are called "sources". Dante receivers are called:

destinations or sinks.

Which of the following are diagnostic features of Dante Controller? (Select three.)

Negotiated Port Speed and Tx/Rx Bandwidth Used

Latency Monitoring

Clock monitoring

In Dante Controller, a green checkmark indicates:

Subscription is successful.

If a network has video devices providing content at 4Kp60 and 1080p60 as well as audio devices providing content at 96kHz and 48kHz, how many clock leaders are elected?

1 - one clock leader for all devices.

What are Dante Application Library (DAL) and Dante Embedded Platform (DEP)?

Ways to add Dante to products without requiring specific chipsets from Audinate. Products using these may require a separate activation process to enable Dante functionality.

A connection between Dante audio and/or video channels is called:

a subscription.

What is latency (generically)?

Latency is the amount of time required for a process to occur - we measure it from input to output of a process

The same Dante audio and/or video channels can be sent to multiple receivers on the network at the same time. (In other words, the signal can be split to multiple destinations.)

True

Dante AV sends audio and video in the same stream (essence)

FALSE

A Dante device's name and channel labels are:

user definable and will be remembered by the device.

The default Dante latency of 1 msec is:

very low and suitable for the majority of applications.

Dante is:

A complete Audio-Video over IP (AVoIP) solution, going beyond the transport to encompass a consistent hardware/firmware/software solution for reliability, scalability and time savings.