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Beta Three MU-22 Reference Manual
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Beta Three MU-22 Reference Manual

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Digital mixer
Reference man ual
MU-22
DIGITAL
LIVE SOUND CONSOLE
Applicable to : Firmware Version 2.0

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Summary of Contents for Beta Three MU-22

  • Page 1 Digital mixer Reference man ual MU-22 DIGITAL LIVE SOUND CONSOLE Applicable to : Firmware Version 2.0...
  • Page 2 MU-22 Mixer Reference manual UG-MU22-EN ( V2.0-240520)
  • Page 3 MU-22 Mixer Reference manual Before installation, operation and maintenance of this product, Please make sure to firstly read the [ Important Safety Information ] on page I of this Manual. Revision history Revision Revision description and content updated Initial version V1.0...
  • Page 4 MU-22 Mixer Reference manual Symbols used in this Manual The following symbols are used for explanations on limiting, warning and prompt in operation and instructions so as to ensure safety: The purpose of the excalmatory mark in an equilateral triangle is to remind the user of paying attention to the important safety, operation and maintenance instructions existing in the Manual.
  • Page 5 MU-22 Mixer Reference manual Repair and Maintenance This equipment belongs to precision electronic products, requiring a special maintenance and repair method. In order to avoid equipment spoilage, personal injury and /or add potential safety hazards, all the maintenance and repair of the equipment must be undertaken by the authorized service station or distributor.
  • Page 6 MU-22 Mixer Reference manual Packing content of TQ-22 Mixer MU-22 Main Unit 1pcs 1pcs ( Not including tablet ) AC power cord Bluetooth adapter 1pcs ( USB interface ) User’s 1pcs reference manual UG-MU22-EN ( V2.0-240520) - III -...
  • Page 7 1.4. Recall a preset scene and easily restore the required working parameters 1.5. Use Presets to tune 1.6. Monitor headphone 1.7. Restrictions on USB interface power Chapter 2 Detailed Description of MU-22 2.1. Input Channels 2.1.1. Home of the input channels 2.1.2. Overview of input channels 2.1.3.
  • Page 8 MU-22 Mixer Reference manual Content (continued ) 2.3. Route assignment operation 2.4. Effect processor 2.4.1. Signal Chain of FX 2.4.2. Add effect 2.4.3. Chorus effect 2.4.4. Echo effect 2.4.5. Flanger effect 2.4.6. Pitch-Shift effect 2.4.7. Reverb effect 2.4.8. Stereo Delay 2.4.9.
  • Page 9 TQ-22 1.2. About the MU-22 mixer Professional field tuners often require four-band parametric frequency equalization ( PEQ ) , high-pass filter ( HPF ), compressor ( COMP ) and noise gate ( GATE ) on each input. They often use more high-quality digital effect processors at the same time.
  • Page 10 MU-22 Mixer Reference manual 1.2.1. Main features  With the digital signal processors ( DSP ) of the fourth generation ( SIMD core ), precise 450MHz / 40bit floating-point mathematical operation,24bit /48KHz high performance ADC / DAC, Concerned about the details of the sound you care about, showing a rich sound content.
  • Page 11 MU-22 Mixer Reference manua The mixer provides LAN IP networking function, IOS iPad or android tablet can wirelessly connect  to the mixer for remote control operation. APP software for wireless remote control of almost all parameters of the mixer.
  • Page 12 MU-22 Mixer Reference manual 1.2.2. Introduction of front panel functions Display, main control screen, touchable operation. The button is used for routing operations, click to enter the routing settings interface. USB disk playback/recording, Bluetooth operation Overview shortcut button, click to enter. In the buttons.
  • Page 13 MU-22 Mixer Reference manua 1.2.3. Introduction of rear panel functions 16-channel MIC / LINE differential balanced input Analog stereo input, single-ended signal input, ( XLR female plug and 1/4 " TRS combined input 1/4 " TRS interface or RCA socket.
  • Page 14 1.3. Tip wizard for quick start You can have a quick start Connect MU-22 mixer with Mics, Music instruments, amps etc. Turn on the power of MU-22, wait for start of the unit, normally it will take around 25 seconds. In the navigation zone ，you can select the input / output channels，...
  • Page 15 TQ-22 of the scene. MU-22 digital mixer includes a lot of preset scenes to be used in all kinds of performance occasions. In allusion to the performance that you will tune for, you can find the most suitable scene. ( Refer to Paragraph 2.8 for details ) You will see a lot of scenes by manufacturer or by the user, choose one and single click [ Recall ].
  • Page 16 MU-22 Mixer Reference manual 1.6. Monitor headphone On the panel turn ， the system will pop up the Solo setup， the user can setup specs, view the headphone output level, also you can clear Solo which is clear all monitor.
  • Page 17 Chapter 2 Detailed Description of MU-22 This section details the screen and operational controls of the MU-22 Digital Mixer. The operation of this tuning station basically consists of input channel setting, bus output channel and routing settings, effect settings, and system settings.
  • Page 18 MU-22 Mixer Reference manual 2.1.2 Overview of input channels Click the channel label , the system automatically enters the input channel overview page. On this page, you can view most of the parameter settings of the current channel. Related parameters. There are 5 overview areas: [Config], [PEQ], [Gate], [Comp], [Route Assignment], click the first 4 areas to enter the full screen mode of the corresponding function.
  • Page 19 2.1.3 Parametric equalization ( PEQ ) MU-22 equipped every MIC / Line In channel with 4 bands PEQ and High / Low Pass filter, Among which BAND1 and BAND4 can select normal filter or High / Low shelf Filter...
  • Page 20 MU-22 Mixer Reference manual 2.1.4 Gate The noise gate allows an audio signal above a set threshold to pass, attenuating or muting the audio below the threshold. In the navigation bar, click the index page or the System setup button, click to enter the system fader page button to switch to the page where the parameter control page.
  • Page 21 MU-22 Mixer Reference manua 2.1.5 Compressor The Compressor controls the dynamic range of the signal when the signal exceeds the set threshold. 15 16 In the navigation bar, click the index page or the fader System setup button, click to enter the system page button to switch to the page where the channel is parameter control page.
  • Page 22 MU-22 Mixer Reference manual 2.1.6 Copy to When you have carefully set an input channel, its parameters have met the requirements, and other channels have basic or identical setting requirements with this channel. In this case, the parameter copy function will be used to quickly complete the parameters of other channels settings.
  • Page 23 MU-22 Mixer Reference manua 2.1.7 Preset What is a channel preset? A channel preset is a set of saved parameter settings for a channel that can be recalled at any time. Simply save the adjusted parameters as a preset, and recall them in the future to restore the original working state.
  • Page 24 MU-22 Mixer Reference manual 2.1.8 Configuration The channel settings configure the channel name, analog gain, phantom power, pan balance, and more. In the navigation bar, click the index page or the System setup button, click to enter the system fader page button to switch to the page where the parameter control page.
  • Page 25 MU-22 Mixer Reference manua 2.2. Output Channels 2.2.1 Home of output channels In the navigation bar, click the index page or the System setup button, click to enter the system fader page button to switch to the page where the parameter control page.
  • Page 26 MU-22 Mixer Reference manual 2.2.2 Overview of output channels Click the channel label , the mixer will automatically enter the output channel overview page, where you can browse most of the parameter settings of the current channel. There are 5 overview areas: click the first 4 areas to enter the [Config], [PEQ], [GEQ], [Comp.], [Route Assignment],...
  • Page 27 ( Same as the input channel, please refer to section 2.1.4 ) 2.2.4 GEQ MU-22 provides a high-quality 15-band graphic equalizer for each output channel. In the navigation bar, click the index page or the System setup button, click to enter the system fader page button to switch to the page where the parameter control page.
  • Page 28 MU-22 Mixer Reference manual 2.2.5 Compressor ( Same as the input channel, please refer to section 2.1.6 ) 2.2.6 Copy to ( Same as the input channel, please refer to section 2.1.7 ) 2.2.7 Preset Select, recall, and save channel presets. The preset is very useful and the effect is very good, completely avoiding the cumbersome parameter adjustment work.
  • Page 29 MU-22 Mixer Reference manua 2.2.8 Configuration The channel settings configure parameters such as channel name and output delay. In the navigation bar, click the index page or the System setup button, click to enter the system fader page button to switch to the page where the parameter control page.
  • Page 30 MU-22 Mixer Reference manual 2.2.9 Main L / R channel setup The Main L/ R channel is identical to the other bus output channels. For details, please refer to the previous section. The difference is that the channel name cannot be modified, the route has no volume control, but which input channels can be selected as the source.
  • Page 31 2.3. Route assignment operation MU-22 has a very powerful and flexible routing function to achieve any input to any output routing control. Before the routing operation starts, please make the necessary settings for the relevant input channels and output channels according to the previous section. The routing assignment operation...
  • Page 32 MU-22 Mixer Reference manual Each output bus, the corresponding signal access The channel label, which contains the physical point of each input source channel can be channel numbers CH01, CH02, etc., as well as independently selected, respectively: [Pre-All], the channel name that the user can customize.
  • Page 33 MU-22 Mixer Reference manua 2.4. Effect processor The mixer has two completely independent effect processing modules FX1 ~ FX4, each effect module is capable of completing one of 6 effects including Chorus, Echo, Flanger, Pitch-shift, Reverb, Stereo Delay 2.4.1. Signal Chain of FX...
  • Page 34 MU-22 Mixer Reference manual 2.4.2. Add effect [Step 1]: Click the and than select the bus that needs to add effects Then select the group in the navigation bar to the FX channel, cancel the route mute, adjust the FX routing volume, and assign the effect signal to the output bus.
  • Page 35 MU-22 Mixer Reference manua 2.4.3. Chorus effect Chorus effect, it can create the effect that several people are talking simultaneously for single speech, produce left and right reverberation, and chorus of wide and beautiful reverberation. Home button, back to the overview channels page.
  • Page 36 MU-22 Mixer Reference manual 2.4.4. Echo effect Echo effect is used to create a sense of space and presence. [ Delay ]: Delay, unit: ms. Input signal and feedback signal of delay. [ Feedback ]: The amount of feedback. The output signal is fed back to the input, and the number of echoes can be changed by changing the amount of feedback.
  • Page 37 MU-22 Mixer Reference manua 2.4.6. Pitch-Shift effect Pitch-Shift is an effector which changes the tone but doesn’t change the speed. In popular terms, that is, the male voice is changed into the female voice, and the female voice is changed into the male voice.
  • Page 38 MU-22 Mixer Reference manual 2.4.8. Stereo Delay Stereo Delay ( ping-pong’s sound effect ) , which has a sound sent out from the left and right channels through the different decay of the left and right channels, like ping-pong’s motion trail effect.
  • Page 39 MU-22 Mixer Reference manua 2.4.9. Effect Presets According to the current effect type, the preset parameters of the effect are invoked, which greatly simplifies the complexity of the operation, and is convenient for the user to quickly experience the flexibility and powerful performance of the professional effect module.
  • Page 40 MU-22 Mixer Reference manual 2.5. USB recording and playback Click the button on the panel to quickly switch to the USB channel menu, or click the group on the navigation bar, then click the USB channel label to enter the USB control menu.
  • Page 41 MU-22 Mixer Reference manua 2.5.2 USB recording You can perform stereo recording by inserting a USB stick into any USB port, and the recording source is optional. U disk playback and recording can be performed in the same USB stick.
  • Page 42 USB control page as shown below. Click the Bluetooth switch to the open position, you can see the host Bluetooth name: MU-22 (user can modify). Then search for available Bluetooth devices in Bluetooth devices such as mobile phones, and click on the device for Bluetooth pairing. After the connection is successful, the system displays the name of the connected device, such as "IPHONE x".
  • Page 43 MU-22 Mixer Reference manua 2.6. Grouping shortcuts 2.6.1 DCA volume grouping The DCA volume group control function can realize the volume control of a plurality of pre-associated input and output channels by a single fader, and realizes the volume control of a group of devices very easily, which greatly reduces the workload of tuning, and is flexible and convenient to operate.
  • Page 44 MU-22 Mixer Reference manual The DCA needs to be pre-configured with channel association before use. On the DCA overview page. Click the DCA channel label to enter the DCA settings menu, as shown below: DCA group number. DCA mute switch. The red light indicates mute.
  • Page 45 The MU-22 has 8 mute groups. The red light on indicates that the mute group is effective and the associated input / output channels will be muted. In the system parameter setup menu , you can set the mute group as follows.
  • Page 46 2.7. SCENES The MU-22 mixer includes a number of pre-set scenes for a variety of performances. For the show you are going to tune, you can find the one that works best for you. Use the scene presets to quickly configure the device to the desired working state.
  • Page 47 MU-22 Mixer Reference manua 2.8. System settings The system setup menu is used to set or browse system parameters and machine configuration. Click the button on the host screen APP home interface to enter the system settings menu, as shown below.
  • Page 48 MU-22 Mixer Reference manual 2.8.1 Automatic microphone mixing control ( AMMC ) What is automatic mixing? When a person speaks, the system quickly assigns gain to the MIC, while other silent MICs are automatically pulled down. When the speaker stops talking, the volume of this MIC is pulled down.
  • Page 49 MU-22 Mixer Reference manua 2.8.2 Signal Generator Use the built-in DSP processor to produce accurate sine, white, pink noise and optionally couple to the output channels you need, including the FX channel. Provides standard test signals for commissioning calibration and external devices for the mixer.
  • Page 50 : The upgrade file must be placed in the root directory of the U disk, and the file name and extension name can not be changed !! 2). Turn on the power of MU-22 mixer, wait till the system starts up and enters normal operating conditions.
  • Page 51 WIFI for it to take effect. user. WIFI connection password, user modify settings. MU-22 digital mixer has WIFI hotspot function, and it can be easily controlled by Android or IOS tablet. UG-MU22-EN ( V2.0-240520) - 43 -...
  • Page 52 MU-22 digital mixer, such as input/output volume and mute control, as well as scene calls, and so on. The easy-to-understand ASCII command language, flexible and extensible syntax structure, direct parameter assignment or incremental/ decrement assignment, can also read back the current parameter values of the mixer.
  • Page 53 MU-22 Mixer Reference manua 2.10. Control through interface RS-485 2.10.1 Connecting the central control equipment When connecting external central control equipment through RS-485 interface, see “AIMIX Digital Mixer Central Control Communication Protocol” for detailed communication protocol and requirements. 2.10.2 Connect 86 boxes of wallboard controllers The external 86 box wallboard controller can communicate and control with the mixer through RS-485 interface.The mixer works in the master mode, and all 86 boxes of controllers work in the slave...
  • Page 54 MU-22 Mixer Reference manual Appendix 1. Technical performance parameters ( The key performance parameters are derived from the standard test method. Test equipment: Professional audio analyzer APx525 / SN: APX2-28556 of Audio Precision Co.,Ltd.,US. All are direct results of unweighted testing. ) A).
  • Page 55 MU-22 Mixer Reference manual Analog input characteristics Input level * Analog gain Used for Enter adjustment Analog gain Port Input port Maximum distortion Impedance standards Sensitivity * range before the level +55dB -70.9dBu (220.8uV) -34.4dBu (14.8mV) -8dB ~ +55dB 50Ω to 600Ω Mics...
  • Page 56 MU-22 Mixer Reference manual Appendix 2. The Mixer Block Diagram UG-MU22-EN (V2.0-240520) -48-...
  • Page 57 MU-22 Mixer Reference manual Appendix 3. Dimensions 370mm 482mm UG-MU22-EN ( V2.0-240520) - 49 -...
  • Page 58 MU-22 Showing rich sound connotations Dongguan 3G Audio Technology Co., Ltd. Add: Building 3, No.1 Nanqi street, Qiaodong road, Qiaotou town, Dongguan City, Guangdong province, 523800 China Website: www.beta3pro.com...