Zoom M3 MicTrak Stereo On-Camera Shotgun Microphone Instruction Manual

1. Introduction

The Zoom M3 MicTrak is a high-performance stereo on-camera shotgun microphone designed for filmmakers and content creators. It features advanced 32-bit float recording technology, eliminating the need for manual gain adjustments and preventing audio clipping. With versatile stereo modes (90°, 120°, and MONO), a built-in recorder, and USB microphone compatibility, the M3 MicTrak offers exceptional audio quality and flexibility for various recording environments.

2. Package Contents

Verify that all items are present in your Zoom M3 MicTrak package:

• Zoom M3 MicTrak Stereo On-Camera Shotgun Microphone
• Custom Zoom Shock Mount
• Foam Windscreen
• 3.5mm TRS Audio Cable
• 3.5mm TRRS Audio Cable
• USB-C to USB-A Cable
• USB-C to USB-C Cable
• User Manual
• AA Batteries (2)
• Thread Adapters (3/8" male to 1/4", 5/8" male to 3/8", 3/8" male to 5/8")

Image 2.1: The Zoom M3 MicTrak microphone with its included accessories, including cables, windscreens, and mounting options.

3. Setup

3.1 Battery Installation

The M3 MicTrak operates on two AA batteries. Open the battery compartment, insert the batteries according to the polarity markings, and close the compartment securely.

Image 3.1: A user inserting AA batteries into the Zoom M3 MicTrak, highlighting the battery compartment.

3.2 Mounting the Microphone

Attach the custom Zoom shockmount to your camera's hot shoe or a compatible tripod/stand using the integrated screw mount. Secure the M3 MicTrak into the shockmount.

Image 3.2: The Zoom M3 MicTrak securely mounted on top of a camera, ready for recording.

3.3 Connecting to a Camera or Device

For camera connection, use the provided 3.5mm TRS audio cable. For smartphones, tablets, or computers, use the appropriate USB-C cable. The device will automatically recognize the connection type.

Image 3.3: The Zoom M3 MicTrak connected to a laptop via USB-C, functioning as a USB microphone.

3.4 Inserting an SD Card

For internal recording, insert a microSD card (up to 32GB) into the designated slot on the microphone. Ensure the card is formatted correctly (exFAT recommended).

4. Operating Instructions

4.1 Power On/Off

Press and hold the power button located on the microphone to turn the device on or off. The display will illuminate upon power-on.

4.2 32-Bit Float Recording

The M3 MicTrak's 32-bit float recording capability allows for clip-free audio capture without the need for manual gain setting. This technology ensures that even very loud sounds are recorded without distortion, providing maximum dynamic range for post-production.

Image 4.1: The Zoom M3 MicTrak highlighting its 32-bit float recording capability for optimal audio capture.

4.3 Gain Control

While 32-bit float recording minimizes the need for precise gain setting, a manual gain control knob (0-10) is available on the microphone for fine-tuning the input level if desired. The current gain level is displayed on the screen.

4.4 Monitoring Audio

Connect headphones to the 3.5mm headphone output jack on the microphone or receiver to monitor your audio in real-time. This allows you to ensure proper sound capture during recording.

Image 4.2: The Zoom M3 MicTrak set up on a small tripod with headphones connected for audio monitoring.

4.5 Stereo Modes and Mono Mode

The M3 MicTrak offers flexible recording patterns:

• 90° Stereo: Captures a focused stereo image.
• 120° Stereo: Provides a wider stereo field.
• MONO: Records a single channel audio.

These modes can be selected directly on the device or via the Comica Audio app.

4.6 Low Cut Filter and Frequency Boost

Utilize the low cut filter to reduce unwanted low-frequency noise (e.g., wind rumble, handling noise). The frequency boost can enhance clarity in certain situations. These functions are accessible via dedicated buttons on the microphone or through the app.

4.7 Wireless Functionality and App Control

The M3 MicTrak features wireless connectivity, allowing control via the Comica Audio app. The app provides comprehensive control over settings such as gain, mode, denoise function, low cut, frequency boost, mute, and bit depth (32-bit float or 24-bit). The wireless range is up to 200 meters line of sight.

Image 4.3: A smartphone screen showing the Comica Audio app interface, allowing detailed control over the microphone's settings.

5. Maintenance

Keep the microphone clean by gently wiping it with a soft, dry cloth. Avoid exposing the device to extreme temperatures, humidity, or direct sunlight. Use the foam windscreen to protect against wind noise and dust. For outdoor use in windy conditions, consider a furry windscreen for better performance.

6. Troubleshooting

• Audio Clipping/Distortion: The 32-bit float recording is designed to prevent clipping. If you experience issues, ensure you are recording in 32-bit float mode. For post-production adjustments, use the "M3 Edit and Play" app to reduce dynamic range and normalize audio.
• Weak Battery Life: Ensure fresh AA batteries are used. For extended recording sessions, connect the device to a power bank via USB-C.
• Mount Instability: If the shockmount feels loose, ensure all screws are tightened. Consider third-party mounting solutions if the provided mount does not meet your stability requirements.
• Wind Noise: Use the included foam windscreen. For significant wind, a furry windscreen (dead cat) is recommended.

7. Specifications

8. Warranty and Support

The Zoom M3 MicTrak comes with a standard manufacturer's warranty. For detailed warranty information, product support, or service inquiries, please refer to the official Zoom website or contact their customer service directly. Keep your proof of purchase for warranty claims.