1. บทนำ
This manual provides comprehensive instructions for the CME H4MIDI WC, an advanced USB Host MIDI Interface, and the WIDI Core, a premium Bluetooth MIDI solution. The H4MIDI WC is designed to seamlessly connect class-compliant USB MIDI instruments to your MIDI hardware without requiring a computer, offering robust routing, filtering, and mapping capabilities. When combined with the WIDI Core, it enables advanced wireless MIDI communication.
The CME H4MIDI WC is engineered for reliability and flexibility, suitable for both studio and live performance environments. It supports a wide range of MIDI devices and operating systems, ensuring broad compatibility and ease of use.

รูปที่ 1.1: เกินview of the CME H4MIDI WC and the WIDI Core module. The H4MIDI WC is a compact black interface with multiple MIDI ports and USB connections, while the WIDI Core is a small green circuit board with a silver chip, representing the wireless MIDI component.
2. การตั้งค่าและการติดตั้ง
Proper setup is crucial for optimal performance of your H4MIDI WC and WIDI Core. Follow these steps to get started.
2.1 H4MIDI WC Connections
The H4MIDI WC offers versatile connectivity options:
- MIDI I / O: Connect traditional MIDI hardware using the 5-pin DIN MIDI IN and OUT ports.
- USB-A Host Ports: Easily connect class-compliant USB MIDI instruments such as keyboards, controllers, effect pedals, and synthesizers. The device can accommodate up to 8 USB MIDI device ports via a standard USB hub (not included).
- พอร์ต USB-C: Used for power and data, including presets.

รูปที่ 2.1 : ด้านหน้า view of the H4MIDI WC highlighting its various ports and features, including MIDI router, filter, mapper, expanded USB MIDI connectivity, and optional Bluetooth MIDI.
2.2 การเปิดเครื่องอุปกรณ์
The H4MIDI WC provides flexible power options:
- 5V USB Power: Can be powered via a standard 5V USB power source.
- 9V DC Power: For standalone use, especially beneficial for guitarists, the device supports 9V DC power (9V-1A).
2.3 WIDI Core Integration (Optional)
The WIDI Core is designed for self-installation into existing MIDI equipment that features MIDI I/O. It functions as a black box concept for integrating advanced wireless MIDI over Bluetooth Low Energy (BLE).

รูปที่ 2.2: รายละเอียด view of the WIDI Core 1.3 chip, a small circuit board with a silver chip and multiple pins, designed for integration into MIDI devices to enable Bluetooth MIDI functionality.
For detailed installation instructions of the WIDI Core into specific MIDI equipment, please refer to the documentation provided with your WIDI Core module or visit BluetoothMIDI.com.
3. การดำเนินการ
The CME H4MIDI WC offers powerful MIDI control and routing capabilities, enhanced by the optional WIDI Core.
3.1 Real-Time MIDI Control
The H4MIDI WC allows for effortless configuration of various MIDI functions:
- MIDI ถึง: Passes MIDI data from an input directly to an output.
- MIDI Split: Routes a single MIDI input to multiple outputs.
- MIDI Merge: Combines MIDI data from multiple inputs into a single output.
- แมปเปอร์ MIDI: Transforms MIDI messages, allowing for custom control assignments.
- ตัวกรอง MIDI: Blocks specific MIDI messages (e.g., Note On/Off, Control Change) from passing through.
3.2 HxMIDI Tools Software
Advanced MIDI routing and processing features are configured using the HxMIDI Tools software, available for Windows, macOS, iOS, and Android. This software provides a graphical interface for customizing the H4MIDI WC's behavior.

Figure 3.1: Screenshots of the HxMIDI Tools software interface, demonstrating options for MIDI routing, filtering, and mapping across different operating systems (iOS, macOS, Windows, Android).
3.3 โหมดการทำงาน
The H4MIDI WC supports various operational modes to suit different setups:
- Innovate Mode: Utilizes the optional WIDI Core for ultra-low latency Premium Bluetooth MIDI. This mode enables wireless communication between your H4MIDI WC and other Bluetooth MIDI devices.
- Customize Mode: Allows for detailed MIDI routing, filtering, and mapping configurations via the HxMIDI Tools software. This mode provides granular control over MIDI data flow.
- Expand Mode: Extends the H4MIDI WC's capabilities to support up to 8-in-8-out HOST ports in addition to its 2-in-2-out traditional MIDI I/O. This is achieved by connecting a standard USB hub to the USB-A port.

Figure 3.2: Diagram illustrating the Innovate mode, showing how the H4MIDI WC connects to various MIDI devices and integrates with optional WIDI Bluetooth MIDI for wireless connectivity.

Figure 3.3: Diagram depicting the Expand mode, showcasing the H4MIDI WC's ability to connect to multiple USB MIDI devices via a USB hub, expanding its input and output capabilities.
4. การบำรุงรักษา
To ensure the longevity and reliable operation of your CME H4MIDI WC and WIDI Core, follow these general maintenance guidelines:
- การทำความสะอาด: Use a soft, dry cloth to wipe down the exterior of the device. Avoid using abrasive cleaners, solvents, or excessive moisture, which can damage the finish or internal components.
- พื้นที่จัดเก็บ: เมื่อไม่ใช้งาน ควรเก็บอุปกรณ์ไว้ในที่แห้งและเย็น หลีกเลี่ยงแสงแดดโดยตรง อุณหภูมิที่สูงหรือต่ำเกินไป และความชื้นสูง
- การเชื่อมต่อ: Periodically check all cable connections to ensure they are secure and free from damage. Avoid bending cables sharply or putting strain on the ports.
- การอัปเดตซอฟต์แวร์: Regularly check for updates to the HxMIDI Tools software and WIDI app (iOS, Android) to ensure you have the latest features and performance improvements.
5 การแก้ไขปัญหา
If you encounter issues with your CME H4MIDI WC or WIDI Core, consider the following troubleshooting steps:
- ไม่มีไฟฟ้า:
- Ensure the power adapter (5V USB or 9V DC) is correctly connected and providing power.
- ลองใช้เต้ารับไฟฟ้าหรือพอร์ต USB อื่น
- MIDI Data Not Transmitting/Receiving:
- Verify all MIDI cables are securely connected to the correct IN/OUT ports.
- Check the MIDI settings within your connected instruments and software to ensure correct channels and routing.
- If using USB MIDI devices, ensure they are class-compliant and properly recognized by the H4MIDI WC.
- Use HxMIDI Tools to check the current routing, filtering, and mapping configurations. Reset to default settings if necessary.
- Bluetooth MIDI Issues (with WIDI Core):
- Ensure the WIDI Core is correctly installed and powered.
- Check Bluetooth settings on your host device (computer, tablet, phone) and ensure it's discoverable and paired with the WIDI Core.
- Update the WIDI app and firmware for the WIDI Core.
- ตรวจสอบให้แน่ใจว่าไม่มีอุปกรณ์ Bluetooth อื่นใดก่อให้เกิดสัญญาณรบกวน
- ซอฟต์แวร์ไม่รู้จักอุปกรณ์:
- Ensure HxMIDI Tools is the latest version.
- Restart your computer/mobile device and the H4MIDI WC.
- Check USB cable connections.
หากต้องการความช่วยเหลือเพิ่มเติม โปรดดูข้อมูลการสนับสนุนในส่วนที่ 7
6. ข้อมูลจำเพาะ
Key technical specifications for the CME H4MIDI WC and WIDI Core:
| คุณสมบัติ | รายละเอียด |
|---|---|
| แบบอย่าง | H4MIDI สุขา |
| เทคโนโลยีการเชื่อมต่อ | USB, 5-pin DIN MIDI, Bluetooth (with WIDI Core) |
| จำนวนช่องสัญญาณ | 8 (USB Host ports) + 2-in-2-out (DIN MIDI) |
| อุปกรณ์ที่รองรับ | Class-compliant USB MIDI instruments (Keyboards, Controllers, Effect Pedals, Synthesizers), Wireless MIDI Devices |
| ความเข้ากันได้ของระบบปฏิบัติการ | Android, Windows, iOS, macOS (for HxMIDI Tools) |
| ตัวเลือกพลังงาน | 5V USB or 9V DC (9V-1A) |
| Dimensions (H4MIDI WC) | 140 mm (W) x 38 mm (L) x 33 mm (H) / 5.51 in (W) x 1.5 in (L) x 1.3 in (H) |
| Weight (H4MIDI WC) | 99 กรัม / 3.49 ออนซ์ |
| Bluetooth MIDI Latency (WIDI Core) | Ultra-low latency (approx. 3ms) |

Figure 6.1: The compact design of the H4MIDI WC, illustrating its dimensions and light weight for easy integration into any setup.

Figure 6.2: Key features of the WIDI Core's Premium Bluetooth MIDI, including ultra-low latency, Smart Connectivity Algorithms (SCA), and 1-to-4 / 4-to-1 connectivity options.
7. การรับประกันและการสนับสนุน
CME is committed to providing excellent customer service and support for its products.
- การสนับสนุนทางออนไลน์: Trusted people-centric online 24/7 support is available via BluetoothMIDI.com.
- Lifetime Updates: Benefit from lifetime updates for your device via the WIDI app, available on iOS and Android platforms.
- การเปลี่ยนการรับประกัน: Enjoy hassle-free 1-to-1 warranty replacement for eligible issues. Please refer to the official CME warranty policy on their webเว็บไซต์สำหรับข้อกำหนดและเงื่อนไขฉบับเต็ม





