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VigilLink VLDT-AP1010 User Manual

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VLDT-AP1010
Audio Processor
VER 1.02

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Summary of Contents for VigilLink VLDT-AP1010

  • Page 1 VLDT-AP1010 Audio Processor VER 1.02...

  • Page 2: Table Of Contents

    Thank you for purchasing this product Please read these instructions carefully for optimum performance and safety before connecting, operating, or adjusting this product. Please keep this manual for future reference. A surge protection device recommended This product contains sensitive electrical components that electrical spikes may damage, surges, electric shocks, lightning strikes, etc.

  • Page 3: Introduction

    1. Introduction This digital audio processor is typically used for video conferences, distant learning, and telemedicine. It features 4-ch MIC inputs, 6-ch linear, and 10-ch linear outputs. Each analog I/O channel has a knob to control the volume. A DANTE port is also provided to ensure low latency in the audio process.

  • Page 4: Package Contents

    3. Package Contents ① 1 x Digital Audio Processor ② 1 x AC 100~240V 50/60Hz Power Cord ③ 22 x Phoenix Connector (3-pin, 3.81mm) ④ 1 x User Manual 4. Specifications Technical HDMI Compliance HDMI 2.0b MIC input: -0.5 / -0.5dB Amplitude-frequency (20Hz~20KHZ@+4dBu) Linear input: -0.2 / -0.2dB...

  • Page 5: Operation Controls And Functions

    Mechanical Housing Metal Enclosure Color Black Dimensions 482mm (W)×250mm (D)×45mm (H) Weight 2.9kg Power Supply AC 100 - 240V 50/60Hz Power Consumption 11W(Max) Operating Temperature 0°C ~ 40°C / 32°F ~ 104°F Storage Temperature -20°C ~ 60°C / -4°F ~ 140°F Relative Humidity 20~90% RH (non-condensing) 5.

  • Page 6: Rear Panel

    5.2 Rear Panel Name Function Description 4-ch MIC and 6-ch balanced linear inputs are used to INPUT connect audio source devices via phoenix connectors. 10-ch balanced linear outputs, used for connecting OUTPUT Amplifiers or speakers via phoenix connectors. HDMI signal input port, used for connecting HDMI source HDMI INPUT device via HDMI cable.
  • Page 7 Step 2: Double-click the “HDP-AU88P. exe” icon (see the figure below) to run the application on the host computer. Step 3: When the application is open, the startup page appears, and then comes the HOME page, as shown below. Step 4: Check the Network icon on the toolbar, as shown below. If there is a red X at the top-right corner of this icon, as the figure above shown, it means the host computer has not yet connected with the audio processor.

  • Page 8: Volume Meter

    Step 5: Choose the audio processor’s IP address and click CONNECT. Then the processor will relate to the host computer. After connection, the CONNECT & SETUP box (see the figure below) will pop out. You may close it directly if no such operation is needed. If the audio processor has successfully related to the host computer, the Network icon will appear, as shown below.

  • Page 9: Input Settings

    6.3 Input Settings As shown below, you will enter the INPUT setting page by clicking the INPUT module on the HOME page or the IN tab on the menu bar. The following figure shows the details of the INPUT setting page. SENSITIVITY: Indicates the sensitivity level of the input signal, which could be adjusted to ensure the sensitivity on the input channel is adaptable to the MIC or linear input (function reserved).

  • Page 10: Expander

    6.4 Expander The Expander, which can effectively extend the dynamic range of the input signal, is used to eliminate noise under the threshold level. As shown below, clicking the EXP module on the HOME page or the EXP button on the right panel of the IN page will give you the option to enter the EXP setting page.

  • Page 11: Equalizer

    G.R. (Gain Reduction): Indicates the amount of gain attenuation of the input signal (in dB) in the Expander process. ACTIVE: Activates the EXP process. The function is equivalent to clicking the green letter A at the EXP module on the HOME page. Clicking the pair of UP-DOWN arrows of the CHAN No.

  • Page 12: Compressor

    The figure below shows the setting page of the EQ module. TYPE: Provides 3 types of band/filters, with High Pass, Low Pass, and Peak optional. FREQUENCY: In High/Low Pass Filter, it means the cut-off frequency of the EQ band; In Peak Filter, it means the center frequency point of the EQ band, with a scale of [20, 20000] Hz.
  • Page 13 The figure below shows the setting page of the compressor. THRESHOLD: The level that the signal above it will be compressed, with a scale of [-60.0, 0.0]dB. RATIO: The compression ratio for signals with levels above threshold, with a scale of [1.0, 20.0].

  • Page 14: Auto Gain Control

    A pair of UP-DOWN arrows on the right panel is also provided for you to select any input channel for the Compressor configuration. 6.7 Auto Gain Control Automatic Gain Control (AGC) intends to control the audio signal within a range to extend the distance of pick-up sounds.

  • Page 15: Auto Mixer

    MAX GAIN: Indicates the maximum amount of gain that the signal with a low level can be added to by the AGC process, with a scale of [0.0, 12.0] dB. THRESHOLD: Signals below the threshold will remain unchanged, while those between threshold and target level will be amplified (at a ratio determined by the MAX GAIN).

  • Page 16: Adaptive Feedback Cancellation

    FADER: Each MIC input channel has a fader to adjust its signal level. It controls the mixed volume on the input channel. MUTE: Each MIC input channel has a MUTE button. Clicking it will enable you to mute the channel. PR (Priority): Sets the priority of the MIC input, 0 = lowest and 10 = highest priority.
  • Page 17 The following figure shows the AFC setting page in detail. MAX DEPTH: The maximum amount of gain the module allows to reduce, with a scale of [- 20.0, 0.0] dB. BANDWIDTH: The bandwidth of the filter, with Narrow and Wide optional. RESET: When pressed, the filter will go back to initial settings, and the module will re-detect the frequency point of the acoustic feedback.

  • Page 18: Adaptive Echo Cancellation

    6.10 Adaptive Echo Cancellation The 48kHz full-band Adaptive Echo Cancellation (AEC) algorithm is set to eliminate echoes coming from the far end in a remote video conference. As shown below, clicking the AEC module on the HOME page or the AEC tab on the menu bar will allow you to enter the AEC configuration page.

  • Page 19: Adaptive Noise Suppression

    As shown in the figure above, we choose LineIn1-L and LineIn1-R as reference signals; in such case, we need to connect the INPUT LINE (L+R) 1 port of the processor to the terminal of the video conference and connect the OUTPUT LINE (L+R) 1 port to an external speaker.

  • Page 20: Matrix Mixer

    LOCAL INPUT: This shows source signals that are available to access the ANS process. AUTOMIXER refers to mixed signals after the AUTOMIXER process. ANS LEVEL: The ANS module provides 12 noise suppression levels, ranging from 6dB to 18dB. ACTIVE: Activates the ANS process. The function is equivalent to clicking the green letter A at the ANS module on the HOME page.

  • Page 21: Output Settings

    As shown above, the horizontal line stands for output channels, and the vertical for input channels (AM, AFC, AEC, and ANS acceptable). AM: Indicates the output signal after the AUTO MIXER process. AFC: Indicates the output signal after the AFC process. AEC: Indicates the output signal after the AEC process.

  • Page 22: Two-Way Crossover

    INVERT: When pressed, inverts the polarity of the signal on the channel. MUTE: When pressed, mutes the output channel. This function is equivalent to pressing the letter M at the output module on the HOME page. On the right panel of the OUT page, modules such as 2-way crossover, equalizer, delay, and limiter are also available for you to set.

  • Page 23: Delay

    The figure below shows the setting page. ACTIVE: When pressed, you will activate/inactivate the frequency filter (High Pass or Low Pass). The activation can be realized by clicking the green letter A at the 2-WAY module on the HOME page. The difference is that clicking the letter A will activate/inactivate the High Pass Filter and the Low Pass Filter simultaneously while clicking an ACTIVE button on the setting page will only activate/inactivate the corresponding frequency filter.

  • Page 24: Limiter

    The figure below shows the setting page of this function. DELAY TIME: Adjusts the delay time of the output audio signal, measured in milliseconds. DELAY CONVERSION: Displays the amount of delay measured in both Feet and Meters. ACTIVE: When pressed, you will activate or inactivate the Delay module. This function can be realized by clicking the green letter A at the DELAY module on the HOME page.
  • Page 25 By clicking the LIM module on the HOME page or the LIMITER button on the OUT page, you will enter the LIMITER configuration page. The figure below shows the setting page of this module. THRESHOLD: This shows that level signals above the threshold will be attenuated, with a scale of [-60.0, 0.0] dB.

  • Page 26: Scene Management

    6.17 Scene Management Up to 8 scenes are available to be managed in this audio processor. By clicking “Tools”> “Scene” on the menu bar, you will enter the setting page as shown below. Load: When pressed, the scene saved in this processor will be exported. Upload: When pressed, the configuration file saved in the host computer will be sent to the processor.

  • Page 27: Control Commands

    Baud Rate: 9600 by default, open to change. Reset: Click it to restore the system’s default settings. 6.19 Control Commands The audio processor is controllable via Control Commands. As shown below, by clicking “Tools” > “Command” on the toolbar, you will enter the setting page. All RS-232 control commands, such as Scene Management, I/O Control, Modules’...

  • Page 28: Troubles And Solutions

    7. Troubles and Solutions If the output audio is abnormal, you may need to check the following items at first: ☆ Whether the STATUS LED is normal. ☆ Whether the INPUT/OUTPUT VOLUME is turned down to the lowest level. ☆ Whether cables are in the proper connection. ☆...

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