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CME H4MIDI WC User Manual

Usb dual-role midi interface
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H4MIDI 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
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
1/38

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Summary of Contents for CME H4MIDI 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 H4MIDI WC is the world's first USB dual-role MIDI interface with expandable wireless Bluetooth MIDI, which can be used as a USB host to independently connect plug-and-play USB MIDI devices and 5-pins DIN MIDI devices for bidirectional MIDI transmission. At the same time, it can...
  • Page 4 USB power supply (bus or power bank) and a DC 9V power supply (sold separately). H4MIDI WC uses the latest 32-bit high-speed processing chip, which enables fast transmission speeds over USB to meet the throughput of large data Messages and to achieve the best latency and accuracy on sub millisecond level.
  • Page 5 The USB-A port can distribute power from the DC or USB-C port to the connected USB devices, with a maximum current limit of 5V-1A. The USB host port of H4MIDI WC can be used as a stand-alone interface without a computer.
  • Page 6 At this time, the connected USB MIDI device can perform MIDI transmission with other connected MIDI devices. Note 1: If H4MIDI WC cannot recognize the connected device, it may be a compatibility issue. Please contact support@cme-pro.com to get technical support.
  • Page 7  USB-C client port and indicator The H4MIDI WC has a USB-C port for connecting to a computer to transmit MIDI data or connecting to a standard USB power supply (such as a charger, power bank, computer USB socket, etc.) with a voltage of 5 volts for standalone use.
  • Page 8  DC 9V power socket You can connect a 9V-1A DC power adapter to power the H4MIDI WC. This is designed for the convenience of guitarists, allowing the interface to be powered by the pedalboard power source, or when the interface is used as a standalone device, such as a MIDI router, where the power source other than USB is more convenient.
  • Page 9 WIDI Core firmware has been upgraded to the latest version. The following operations are based on WIDI BLE firmware version v0.2.2.1 or higher: When the H4MIDI WC is not powered on, press and hold the button and then power on the H4MIDI WC until the WIDI (Optional) indicator in the center of the interface flashes slowly 3 times, then release it.
  • Page 10 used to connect to a computer or mobile phone). If WIDI Core has previously connected to other Bluetooth MIDI devices, this will disconnect all Bluetooth connections. WIDI INPUT/OUTPUT Bluetooth MIDI Indicators When the WIDI Core module is not installed, these three instructors are off.
  • Page 11 WIRED MIDI CONNECTION ⚫ Use H4MIDI WC to connect external USB MIDI devices to your MIDI Devices Connect a USB or 9V DC power source to the device. 11/38...
  • Page 12 USB MIDI devices at the same time, please use a USB Hub. Use a MIDI cable to connect the MIDI IN port of the H4MIDI WC to the MIDI Out or Thru port of other MIDI devices, and connect the MIDI OUT port of the H4MIDI WC to the MIDI IN of other MIDI devices.
  • Page 13 MIDI Out or Thru of other MIDI devices, and connect the MIDI OUT port of the H4MIDI WC to the MIDI IN of other MIDI devices. When the power is on, the LED indicator of H4MIDI WC will light up and the computer will automatically detect the device. Open the music software, set the MIDI input and output ports to H4MIDI WC on the MIDI settings page, and get started.
  • Page 14 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 HxMIDI TOOLS software, please refer to the [Software Settings] section of this manual for details.
  • Page 15 Android) and the user manual. You can use it to upgrade the firmware of your H4MIDI 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 16 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. 16/38...
  • Page 17 MIDI Filter settings The MIDI Filter is used to block certain types of MIDI messages in a selected input or output from passing through. 17/38...
  • Page 18 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 19 If the firmware cannot be updated automatically, you can manually update it on the Firmware page. Note: It is recommended to restart H4MIDI WC every time after upgrading to a new firmware version. Settings The Settings page is used to select the CME USB Host MIDI hardware device model and port to be set up and operated by the software.
  • Page 20 Product and Ports. If you have multiple CME USB Host 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 21 H4MIDI WC mainboard at a vertical 90-degree angle according to the direction shown in the figure below. Attach the mainboard of the H4MIDI WC back to the case and fasten it with screws. Note 1: The product package also includes the "H4MIDI WC Optional Bluetooth MIDI Module Installation Guide"...
  • Page 22 (O PTIONAL WIDI CO RE EXPANSION MODULE INSTALLED) Note: All WIDI products use the same Bluetooth connection method. Therefore, the following video instructions use WIDI Master as an example. ⚫ Establish a Bluetooth MIDI connection between two H4MIDI WC interfaces with WIDI Core installed Video instruction: https://youtu.be/BhIx2vabt7c...
  • Page 23 If there is MIDI data to send, the LEDs of both devices flash dynamically during data transmit. Establish a Bluetooth MIDI connection between a music device with built-in Bluetooth MIDI and a H4MIDI WC with WIDI Core installed Video instruction: https://youtu.be/7x5iMbzfd0o...
  • Page 24 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 25 Power on the H4MIDI 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 26 Note: If the App you are using already has a Bluetooth MIDI connection function, please connect WIDI Core directly in the MIDI settings page in the App. Power on the H4MIDI WC with WIDI Core installed and confirm that the dark blue LED is blinking slowly.
  • Page 27 As far as we know, only Cakewalk by Bandlab and Steinberg Cubase 12 or higher integrates this API, so it can connect directly to H4MIDI WC with WIDI Core installed or other standard Bluetooth MIDI devices. Of course, there are alternative solutions for MIDI data transmit between “Windows 10/11 Generic Bluetooth MIDI Drivers”...
  • Page 28 (the computer needs to be equipped with Bluetooth Low Energy 4.0 or 5.0). Power on the H4MIDI 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 29 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 for assistance.
  • Page 30 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 H4MIDI 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 31 Repeat the above steps to set up all H4MIDI WCs with WIDI Core installed (or other WIDI devices) to be added to the group. After all WIDI Cores of the H4MIDI WC (or other WIDI devices) have been set to "Force Peripheral" roles, they can be powered on at the same time.
  • Page 32 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 H4MIDI 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 33 Note: If you use an iOS 16 (and later) device for Group Auto-Learn setup, please turn off the Bluetooth switch on the iOS device after setup or forget the existing WIDI pairing to release the Bluetooth occupation caused by automatic reconnection.
  • Page 34 Core extension module is installed). Compatible Devices with plug-and-play USB MIDI socket, or standard MIDI devices sockets (including 5V and 3.3V compatibility) Computers and USB MIDI host devices which supports USB MIDI plug-and-play Compatible OS macOS, iOS, Windows, Android, Linux and Chrome OS MIDI Messages All messages in the MIDI standard, including notes, controllers, clocks, sysex, MIDI timecode, MPE...
  • Page 35 (BLE MIDI) higher, Android 8 or higher Wireless As low as 3 ms transmission (Test results of two H4MIDI WC with WIDI Core installed based Latency on Bluetooth 5 connection) Range 20 meters / 65.6 feet (without obstruction) Firmware Wireless upgrade via Bluetooth using the WIDI App for iOS or...
  • Page 36 The computer does not receive MIDI messages when playing a MIDI ⚫ keyboard. Please check if the H4MIDI 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 37 The wireless connection distance of the WIDI Core module of the ⚫ H4MIDI 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 distance and response time will be affected.
  • Page 38 Please try to avoid these sources of interference CONTACT e-mail:support@cme-pro.com Web page:www.cme-pro.com 38/38...