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CME U4MIDI WC User Manual

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U4MIDI WC
USER MANUAL V05
Hello, thank you for purchasing CME's professional products!
Please read this manual completely before using this product. The
pictures in the manual are for illustration purposes only, the actual product
may vary. For more technical support content and videos, please visit this
page:
www.cme-pro.com/support/
IMPORTANT NOTES
Warning
⚫
Improper connection may result in damage to the device.
Copyright
⚫
Copyright 2025 © CME Corporation. All rights reserved. CME is a
registered trademark of CME Pte. Ltd. in Singapore and/or other countries.
All other trademarks or registered trademarks are the property of their
respective owners.
Limited Warranty
⚫
CME provides a one-year standard Limited Warranty for this product
only to the person or entity that originally purchased this product from an
authorized dealer or distributor of CME. The warranty period starts on the
date of purchase of this product. CME warrants the included hardware
1 / 35

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Summary of Contents for CME U4MIDI WC

  • Page 1 CME provides a one-year standard Limited Warranty for this product only to the person or entity that originally purchased this product from an authorized dealer or distributor of CME. The warranty period starts on the date of purchase of this product. CME warrants the included hardware...
  • Page 2 CME does not warrant against normal wear and tear, nor damage caused by accident or abuse of the purchased product. CME is not responsible for any damage or data loss caused by improper operation of the equipment. You are required to provide proof of purchase as a condition of receiving warranty service.
  • Page 3 USB cable Quick Start Guide INTRODUCTION U4MIDI WC is the world's first USB MIDI interface with expandable wireless Bluetooth MIDI, which can be used as a plug-and-play USB MIDI interface to connect any USB-equipped Mac or Windows computer, as well as iOS devices or Android devices (via USB OTG cable).
  • Page 4 U4MIDI WC uses the latest 32-bit high-speed processing chip, which enables fast transmission speeds over USB to meet the throughput of large data MIDI messages and to achieve the best latency and accuracy on sub- millisecond level. It connects to all MIDI products with standard MIDI...
  • Page 5 Once this function has been set up, you can quickly click the button while the power is on. When the power is on, press and hold the button for more than 5 seconds and then release it, and the U4MIDI WC will be reset to its factory default state. ...
  • Page 6 Bluetooth earbuds or smart bracelets, etc.) and does not have an automatic power- saving function. Note: The USB port in the UxMIDI Tools software is a virtual port that runs through a single USB-C port. The U4MIDI WC is not a USB host device, and the 6 / 35...
  • Page 7 This button has no effect when the optional WIDI Core Bluetooth MIDI module is not installed. U4MIDI WC can be equipped with CME's WIDI Core module to expand the 16-channel bi-directional wireless Bluetooth MIDI function. For installation instructions of the WIDI Core module, please refer to the printed installation guide in the package, and for technical specifications, please visit the product page www.cme-pro.com/widi-core/.
  • Page 8 Core Bluetooth module will be manually reset to the factory default state. When the U4MIDI WC is powered on, press and hold the button for 3 seconds and then release it, and the Bluetooth role of the WIDI Core module will be manually set to "Force Peripheral" mode (this mode is used to connect to a computer or mobile phone).
  • Page 9 Multiple U4MIDI WCs can be connected to a computer via a USB hub. Use a MIDI cable to connect the MIDI IN port of the U4MIDI WC to the MIDI OUT or THRU of other MIDI devices, and connect the MIDI OUT port of the U4MIDI WC to the MIDI IN of other MIDI devices.
  • Page 10 MIDI settings page, and get started. See the manual of your software for further details. Note: The U4MIDI WC has no power switch, you just need to power it on to start working. If you want to use the U4MIDI WC standalone without connecting to a computer, you can directly connect to a USB power supply or power bank.
  • Page 11 ⚫ U4MIDI WC Initial signal flow chart: Note: The BLE MIDI part is only effective after the WIDI Core module is installed. Note: The above signal routing can be customized by using the free UxMIDI TOOLS software, please refer to the [Software Settings] section of this manual for details.
  • Page 12 Android) and the user manual. You can use it to upgrade the firmware of your U4MIDI WC at any time to get the latest advanced features. At the same time, you can also perform a variety of flexible settings. All router, mapper and filter settings will be automatically saved to the internal memory of the device.
  • Page 13 MIDI Router Settings MIDI router is used to view and configure the signal flow of MIDI messages in your U4MIDI WC hardware. MIDI Mapper Settings The MIDI Mapper is used to reassign (remap) the selected input data of the connected device so that it can be output according to custom rules that are defined by you.
  • Page 14 MIDI Filter Settings MIDI filters are used to block certain types of MIDI messages in a selected input or output from passing through. 14 / 35...
  • Page 15 View full settings & Reset all to factory defaults The View Full settings button is used to view the filter, mapper, and router settings for each port of the current device - in one convenient overview. The Reset all to factory defaults button is used to reset all parameters of the unit to the default state when the product leaves the factory.
  • Page 16 If the firmware cannot be updated automatically, you can manually update it on the Firmware page. Note: It is recommended to restart the U4MIDI WC after each upgrade to a new firmware version. Settings The Settings page is used to select the CME USB MIDI hardware device model and port to be set up and operated by the software.
  • Page 17 Product and Ports. If you have multiple CME USB MIDI hardware devices connected at the same time, please select the product and port you want to set up here. You can also enable remote switching of user presets via MIDI note, program change, or control change message in the Presets settings area.
  • Page 18 U4MIDI WC mainboard at a vertical 90-degree angle according to the direction shown in the figure below. Attach the mainboard of the U4MIDI WC back to the case and fasten it using screws. Note 1: The product package also includes the "U4MIDI WC Optional Bluetooth MIDI Module Installation Guide"...
  • Page 19 (O PTIONAL WIDI CO RE EXPANSION MODULE INSTALLED) Note: All WIDI products use the same Bluetooth connection method. Therefore, the following video descriptions use WIDI Master as an example. ⚫ Establish a Bluetooth MIDI connection between two U4MIDI WC interfaces with WIDI Core installed Video instruction: https://youtu.be/BhIx2vabt7c...
  • Page 20 If there is MIDI data to send, the LEDs of both devices flash dynamically during data transfer. ⚫ Establish a Bluetooth MIDI connection between a music device with built-in Bluetooth MIDI and a U4MIDI WC with WIDI Core installed Video instruction: https://youtu.be/7x5iMbzfd0o...
  • Page 21 Note: If the WIDI Core cannot pair automatically with another MIDI device, there may be a compatibility issue, please go to BluetoothMIDI.com contact CME for technical support. Also check if your mobile device, another WIDI device or your operating system is not obstructing the automatic connection process.
  • Page 22 Power on the U4MIDI WC with WIDI Core installed and confirm that the dark blue LED is blinking slowly. Click the [Apple icon] in the upper left corner of the Apple computer screen, click the [System Preferences] menu, click the [Bluetooth icon], and click [Turn on Bluetooth], then exit the Bluetooth settings window.
  • Page 23 Note: If the App you are using already has a Bluetooth MIDI connection function, please connect the WIDI Core directly on the MIDI setting page in the app. Power on the U4MIDI WC with WIDI Core installed and confirm that the dark blue LED is blinking slowly.
  • Page 24 As far as we know, only Cakewalk by Bandlab and Steinberg Cubase 12 or higher integrates this API, so it can connect directly to U4MIDI WC with WIDI Core installed or other standard Bluetooth MIDI devices. Of course, there are alternative solutions for MIDI data transfer between “Windows 10/11 Generic Bluetooth MIDI Drivers”...
  • Page 25 (the computer needs to be equipped with Bluetooth Low Energy 4.0 or 5.0). Power on the U4MIDI WC with WIDI Core installed and start. Click Windows [Start] - [Settings] - [Devices], open the [Bluetooth and other devices] window, turn on the Bluetooth switch, and click [Add Bluetooth or other devices].
  • Page 26 Note: If you do not see the WIDI Core device name in the MIDI settings window of your music software, please visit the Windows Connection Troubleshooting section of the WIDI Product Quick Guide on the CME website support page to see the solution, or email the support@cme-pro.com...
  • Page 27 Download and install the free app [MIDI BLE Connect]: https://www.cme-pro.com/wp-content/uploads/2021/02/MIDI-BLE- Connect_v1.1.apk Power on the U4MIDI WC with WIDI Core installed and confirm that the dark blue LED is blinking slowly. Turn on the Bluetooth function of the Android device. Open the MIDI BLE Connect App, click [Bluetooth Scan], find the WIDI Core that appears in the list, click [WIDI Core], it will show that the connection is successful.
  • Page 28 Repeat the above steps to set up all U4MIDI WCs with WIDI Core installed (or other WIDI devices) to be added to the group. After all WIDI Cores of the U4MIDI WC (or other WIDI devices) have been set to "Force Peripheral" roles, they can be powered on at the same time.
  • Page 29 Core that is the central. Next, these WIDI Cores will restart and automatically connect to the same group. Note 1: Even if you turn off the U4MIDI WC with WIDI Core installed, all group settings will still be stored in the memory of the WIDI Core central. When powered on again, they will automatically connect in the same group.
  • Page 30 Set all WIDI devices as "Force Peripheral" to avoid automatic pairing of WIDI devices with each other. Enable "Group Auto-Learn" for the central WIDI device of your choice. Close the WIDI application. The WIDI LED light will slowly flash dark blue.
  • Page 31 1x DC power socket (External 9V-500mA DC adapter not included) Expansion Optional WIDI Core - Premium Bluetooth MIDI LED indicators 7 LED lights ((WIDI LED indicators will only light up when the WIDI Core expansion module is installed) Button 1x button for presets and other functions 1x button for optional WIDI (only takes effect after the WIDI Core extension module is installed).
  • Page 32 Wireless upgrade via Bluetooth using the WIDI App for iOS or upgrades Android Weight 4.4 g / 0.16 oz Specifications are subject to change without notice. The LED light of the U4MIDI WC does not light up. ⚫ 32 / 35...
  • Page 33 The computer does not receive MIDI messages when playing a MIDI ⚫ keyboard. Please check if the U4MIDI WC is correctly selected as the MIDI input ‐ device in your music software. Please check if you ever set up custom MIDI routing or filtering ‐...
  • Page 34 The wireless connection distance of the WIDI Core module of the ⚫ U4MIDI WC is very short, the latency is high, or the signal is intermittent. WIDI Core adopts Bluetooth standard for wireless signal transmission. When the signal is strongly interfered or blocked, the transmission...
  • Page 35 This can be caused by trees, reinforced concrete walls, or environments with many other electromagnetic waves. Please try to avoid these sources of interference CONTACT Email: info@cme-pro.com Website: http://www.cme-pro.com/support/ 35 / 35...