Fix the mic keeps muting and unmuting itself (Applicable to FIFINE Amp

▶️Understanding the Problem

Some FIFINE microphone users (particularly with AM8, K688, A6V, A6T, and A8 models) report an issue where their microphone appears to mute or unmute itself without user intervention. The root causes can range from simple software settings to more complex hardware interference or grounding issues. We have noticed and taken this issue seriously and compiled a comprehensive troubleshooting guide to help you resolve this issue.

▶️Connection Checks

Before diving deeper, perform these fundamental tests:

1️⃣Try connecting your FIFINE microphone to different devices (laptop, smartphone, or another computer) to determine if the issue is device or port-specific

2️⃣Replace your USB cable with supports data transmission (some cables only provide power)

▶️Eliminating Interference

Wireless and peripheral interference is a common culprit:

1️⃣Check if the mic mute button syncs with the physical mute button on the keyboard, such as a laptop/PC keyboard, or external Bluetooth keyboard.

2️⃣Please keep the mic away from wireless gear, like a wireless mouse or keyboard, by using a boom arm, and test again.

3️⃣Unplug all other USB peripherals like keyboard, mouse, and other mics to test. Only plug the mic into your computer, and test it with each USB port. Do not use a USB hub or extension cable for the connection of the mic.

▶️Software Configuration

Proper software settings are crucial for microphone operation:

1️⃣System Sound Check:

Click the speaker icon in your system tray → Ensure the microphone isn't muted (red icon indicates mute status)

2️⃣Sound Control Panel Settings:

Right-click the speaker icon → Open Sound settings

Navigate to "Sound Control Panel" → "Recording" tab  → Set your FIFINE microphone as Default input device

Open "Properties" → "Levels" tab → Verify the microphone isn't muted (the speaker icon is not in red)

3️⃣Power Management:

Make sure the computer is in work but not sleep/hibernation status (like black screen hibernation).

▶️Advanced: Grounding Issues

If problems persist, consider grounding problems:

1️⃣Try using a 3-prong to 2-prong adapter on your power outlet to break potential ground loops

2️⃣Test your setup in different rooms with separate circuits

3️⃣Consider using a USB isolator if ground loops are suspected

▶️When to Contact Support

If you've tried all these steps and the issue persists, your microphone may have a hardware defect. Contact FIFINE support with:

1️⃣Your specific model name

2️⃣The troubleshooting steps you've already attempted

3️⃣Any patterns you've noticed (e.g., only happens after 30 minutes of use)

Most auto-muting issues can be resolved through these troubleshooting steps. By methodically testing each potential cause, you'll likely identify and fix the problem without needing replacement equipment.