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Preface
Thank you for purchasing our products. Please read this
manual first to familiarize yourself with the product.
Note: This manual provides relevant information for all
models in this series. Since different models have
different configurations, the actual configuration and
functions of the product you purchased are covered in
this manual.
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Summary of Contents for TENDZONE WebGem 0808D

  • Page 1 Preface Thank you for purchasing our products. Please read this manual first to familiarize yourself with the product. Note: This manual provides relevant information for all models in this series. Since different models have different configurations, the actual configuration and functions of the product you purchased are covered in this manual.
  • Page 2: Important Safety Instructions

    Important Safety Instructions 1. Please read these instructions carefully. 2. SAVE THESE INSTRUCTIONS. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this product near water or in places with high humidity. 6. Clean only with a dry cloth. 7.
  • Page 3: Table Of Contents

    product, when it has been exposed to rain or moisture, when it does not operate properly, or when it has been dropped and damaged. Please contact after-sales service personnel for all repair services. Graphic symbol explanation: Lightning: Hazardous live voltages are present during operation of this equipment.
  • Page 4: Product Introduction

    twenty three Intelligent Automix .................13 2. 4 -threshold automatic mixing .................14 2. 5 Dodgers .........................16 2.6 Feedback Elimination ..................17 2.7 Echo Cancellation ....................18 2.8 Noise Suppression ....................19 2.9 Main Mix .........................20 3.0 Post-processing ....................21 3.0.1 Speaker Manager ..................21 3.0.2 Limiter .......................22 3.1 Output module .......................23 3.2 USB recording and playback ................24 3.3 Scene Switching ....................25...
  • Page 5 (1) PWR: Power indicator light. When the power is turned on, the light is on, indicating that the device is powered normally. The light is off, indicating that there is an abnormality in the power supply of the device. (2) RUN: Status indicator light, flashing indicates normal operation; (3) LINK: When it is always on, it means the device is started up successfully;...
  • Page 6: Software Interface

    tracking , with DC5V power interface ; (8) RESET: Restore factory settings button . Method: When the device is online, press and hold the RESET button for 5 seconds and then release it . The device will automatically restart and all parameters will be restored to factory defaults .
  • Page 7 (1) Level display area: The left side is the input channel level display area, and the right side is the output level display area. You can slide the mouse or roll the mouse wheel to view the real-time levels of all channels.
  • Page 8: Audio Processing

    2. Audio Processing 2.1 Input Module 1. The edit box above displays the channel name and can be modified. 2. Quick keys for setting parameters of the pre-processing module. 3. Invert: Press this button to invert the phase of the input signal by 180 degrees.
  • Page 9: Pre-Processing Module

    2.2 Pre-processing module 2.2.1 Input Source of microphone input and line input can be selected . High sensitivity means that the microphone has high efficiency in sound-to-electricity conversion and is sensitive to weak sound signals. Mute: Pressing it means that the channel is muted, which is equivalent to shielding the input signal;...
  • Page 10: Expander

    2.2.2 Expander The expander increases the dynamic range of the input according to user needs. When the input signal is less than the "threshold", the expander will reduce the input signal at the set "ratio"; when the input signal is greater than the "threshold", it will be output at a 1:1 ratio, with the output level = input level;...
  • Page 11: Equalizer

    2.2.3 Equalizer The equalizer compensates and corrects the frequency characteristics to achieve a relatively flat frequency response characteristic. Different mode ls have different equalizer types, and the specific type is subject to the actual model of the device. Band pass-through: After making EQ adjustments, you can cancel the bypass o f certain set frequency bands, which will only affect that band.
  • Page 12: Compressor

    2.2.4 Compressor The compressor compresses the signal greater than the threshold value at a predetermined ratio and outputs it . When the input level is greater than the preset threshold, the output level is compressed according to the set ratio, and the output signal = threshold + (input signal - threshold) / ratio;...
  • Page 13 sed after the compressor processing. Reset All: Reset all parameters to factory settings.
  • Page 14: Automatic Gain

    2.2.5 Automatic Gain First, let's explain the role of automatic gain. For example, when a user speaks to a microphone, the distance between the mouth and the microphone may vary, causing the output volume to fluctuate, or even make the speech sound intermittent. Automatic gain is to set a threshold, output the input signal below the threshold at a 1:1 ratio, and directly increase the level above the threshold according to the ratio.
  • Page 15 gained according to the ratio. Attack Time: The time from when the input level reaches the threshold to when the automatic gain starts . Recovery time: The time required for the input signal to return from the automatic gain state to the original non-automatic gain state. Bypass: Bypass the input signal without processing.
  • Page 16 twenty three Intelligent automatic mixing Intelligent automatic mixing is an algorithm designed based on network audio automatic gain attenuation control large conference room microphones, but it is not limited to network audio applications. It is suitable for almost any mixer, news broadcast, talk show, auditorium, film and television Dialogue recording or any discussion, meeting scenario involving multiple microphones and participants.
  • Page 17 Automatic : Indicates that the signal of this channel has been added to the intelligent mixing algorithm for processing. Mute: Indicates that the channel signal does not participate in the intelligent mixing algorithm. Direct: Bypass the input signal and output it directly without automatic mixing algorithm processing .
  • Page 18: Threshold Automatic Mixing

    2. 4 -threshold automatic mixing The Gain Sharing Automixer has fast, smooth sounding operation and requires little adjustment and setup time. However, for some users, a gating algorithm that limits the total number of open microphones ( NOM ) is preferred. The Gated Automixer module is built around an adaptive threshold algorithm that is easy to set up and does not require setting fixed thresholds.
  • Page 19 Level meter: Each channel has 1 level meter, which is the pre-auto gain level value. The -60dBu level meter shows the level of the input signal, which is the level value before the fader and auto gain. Auto: Each channel has an "Auto" button. Press it to add the channel to the automatic mix.
  • Page 20 Enable Last Mic: Pressing the Enable Last Mic button ensures that the last microphone remains on, even if no speech is detected. This guarantees that at least one microphone will always remain on to prevent dead air. Mute and Gain: The Master section includes master gain and mute settings. These only affect the main mix output, not the channel direct outputs.
  • Page 21: Dodgers

    2. 5 Dodgers The main function of the ducker module is to reduce the signal of the channel next to it when a certain channel is selected as the ducking signal. Effect, mainly used in conference rooms and other occasions. If the voice input of the rostrum is selected as the control signal, when the main speaker speaks, the volume output of other speakers will be reduced, so that the effect of only one speaker is achieved;...
  • Page 22 The value delays the closing time. During this time, as long as the signal is higher than the "Thd" limit value, the sound channel can be kept open. Attenuation: The output level after being processed by this module for users to view.
  • Page 23: Feedback Elimination

    2.6 Feedback Elimination Feedback eliminator, automatically detects and suppresses acoustic feedback in audio systems, can distinguish feedback from audio, and when feedback is detected, adds a notch filter or adaptive filter to attenuate the frequency of the feedback. Mode selection: There are four modes to choose from: Conference 1, Conference 2, Concert 1, and Concert 2.
  • Page 24 manual type is selected, the user can modify the values of the filter frequency, gain, and bandwidth. Bypass: bypasses all input signals without processing. Bypass (red) is disab led, and Bypass (grey) is enabled. Clear All: Clear the data of all filters. ANS Level: There are 0-6 levels to choose from (only adaptive feedback cancellation has this option)
  • Page 25: Echo Cancellation

    2. 7 Echo Cancellation Acoustic echo is caused by the sound of the speaker being fed back to the microphone multiple times in hands-free or conferencing applications (the microphone collects the sound from the speaker as well as the near-end sound). Some echo is necessary, but most echoes have a negative impact and reduce the quality of communication.
  • Page 26 echo cancellation processing.
  • Page 27: Noise Suppression

    2.8 Noise Suppression The purpose of the noise suppressor is to eliminate the steady-state environmental noise picked up by the microphone, such as ventilation systems, air conditioners, fans, motors or other mechanical equipment. There are 6 levels of noise suppressors for users to choose from. We recommend using the lowest level to achieve the expected environmental noise elimination effect.
  • Page 28: Main Mix

    the value, the smoother the mutation noise processing. Direct: Indicates that the signal goes directly to the next module without being processed by ANS. 2.9 Main Mix The mixing matrix intuitively displays the connection relationship between input and output channels in the form of a matrix array. If you need to output the sound of input 1 to output 1, just light up the node button in the first row and first column of the matrix.
  • Page 29: Post-Processing

    3.0 Post-processing Mute: Pressing it means that the channel is muted, which is equivalent to shielding the output signal; popping it up means that the channel signal is not muted. 3.0.1 Speaker Manager (1) EQ...
  • Page 30 The equalizer compensates and corrects the frequency characteristics to achieve a flatter frequency response characteristic. Pass-through : Restore the frequency point in this band to 0 dB. Type: The equalizer has four built-in filter types: Peak, Notch, H-shelf, and L-shelf; Gain: Gain/attenuation at the center frequency.
  • Page 31: Limiter

    3.0.2 Limiter The limiter performs a limiting process on the signal that is greater t han the threshold. When the input signal is greater than the threshold, the output signal is equal to the threshold, and when the input signal is less than the threshold, the output signal is equal to the input signal.
  • Page 32 1. The edit box above displays the channel name and can be modified. 2. Shortcut keys for setting parameters of post-processing module. 3. Mute: Pressing it means that the channel is muted, which is equivalent to shielding the input signal. Popping it up means that the channel signal is not muted.
  • Page 33: Usb Recording And Playback

    3.2 USB recording and playback The USB playback function is to connect a removable storage device ( USB flash drive) for direct playback Audio files in removable storage devices. Support standard mp3 and wav format files Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48 Support FAT32 format, do not support NTFS, exFAT and other formats, support up to 64G USB flash drive (laboratory test maximum)
  • Page 34 Recording: After mixing the channels to be recorded to the recording channels in the mixing matrix, click the "Start Recording" button to start recording or stop recording. Click "Pause Recording" to pause or continue recording. After recording is completed, a recording file will be generated in the root directory of the U disk.
  • Page 35: Scene Switching

    3.3 Scene Switching Save: Save the current scene to the selected device scene number. Load: Enable the currently selected scene, usually used for scene change...
  • Page 36: System Management

    3. System Management 3.1 User Management The initial user list of the device is: type username password Maximum Can I change number of my password? connections administrator admin admin able user user user able 3.2 Environmental Control Management 3.2.1 Serial port settings Used to view and modify the serial port information of the currently connected device.
  • Page 37: Voice Tracking

    3.2.2 Voice Tracking...
  • Page 38 A. Voice tracking settings are divided into camera tracking and custom command sending. Camera tracking is used to control the camera rotation when the microphone is speaking; custom command sending is used to send corresponding commands to the corresponding port when the microphone is speaking.
  • Page 39 C. The microphone number generally corresponds to the input channel of the device, that is, the channel number to which the microphone is connected. The microphone number represented by is a virtual number and can only be used to set the default microphone.
  • Page 40: Scene Management

    to input channels 1 and 8 respectively (requires that preset position 1 be associated with the microphone of channel 1, preset position 2 be associated with the microphone of channel 8, and set the camera to switch to the microphone of the corresponding input channel). The setting process is as follows: Connect the PC and the device, open the serial port settings in the device settings, select 232 for the serial port number, select 9600 for the baud rate, leave the check bit, data bit, and stop...
  • Page 41: Gpio

    Save: Save the current scene to the selected device scene number. Load: Enable the currently selected scene, usually used for scene change. Reset: Restore the selected scene configuration to the default configuration. Select file: Select the file to upload. Upload: Click to select the file, then click to upload the selected file. Export: Save the currently selected device scene to the PC.
  • Page 43 B. GPIO input settings External circuit status changes --- GPIO pin level changes --- audio matrix internal changes For example: Use GPIO 2 channel, external input high level, control the audio processor mixing input channel 1 to route to output channel 2; external input low level, control the processor input channel 1 to route to output channel 2 mixing.
  • Page 44: System Configuration

    3.3 System Configuration 3.3.1 System Information Displays system configuration information. The device name can be modified.
  • Page 45: Network Configuration

    3.3.2 Network Configuration You can choose manual or automatic acquisition mode, and set IP, mask, gateway, and DNS server.
  • Page 46: System Maintenance

    3.3.3 System Maintenance System upgrade: first select the required upgrade file, then click Upgrade. To modify the theme and customize the icon: Select the modified ZIP compressed file and click Upload. After the upload is successful, the interface theme and LOGO will take effect immediately after refreshing the interface, and the device model information will take effect only after restarting the device.
  • Page 47: Custom Interface

    3.3.5 Custom interface The custom interface is mainly used to design the user login interface, and supports running tablets: Android, Hongmeng, IOS system; WIN-PC, Kylin system defense version. Through all displayed controls, control the gain, mute, system mute of the device input and output channels, save and call of scenes, and channel routing.
  • Page 48 down buttons or a combination of the two;...
  • Page 49 Mixing Matrix: 1. Right-click a row or column to have a hide/show option, and edit whether the input or output channel should hide/show the entire row of the array; 2. The row and column hidden intersections are in disabled mode, and the editable button is operable.
  • Page 50: Interface Configuration

    3.3.6 Interface Configuration Custom profile management: Save the parameters configured in the edited custom interface as a file, which is mainly used to restore device configuration parameters. For example, import parameters of different devices in the same usage scenario. User client control interface base map management:...

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