When choosing a lapel microphone, the most crucial element that can make or break the quality of your recording is the microphone capsule (often referred to as the “mic head”). It’s easy to overlook, but the capsule is the core of any microphone—it determines sound clarity, durability, and its ability to resist interference.
At ECMIC, we specialize in producing high-quality microphone capsules, with a focus on materials, design, and technology that ensure superior audio performance. Let’s dive deeper into the technology behind our capsules and how we use advanced techniques to ensure a clean and clear sound, even in challenging environments.
What Makes a High-Quality Microphone Capsule?
A microphone capsule is the part of the mic that captures sound and converts it into an electrical signal. The quality of the capsule determines the clarity, fidelity, and overall performance of the mic. Here’s what makes a great microphone capsule:
1. Diaphragm Material and Construction
The material of the diaphragm plays a crucial role in sound quality. For example, gold-plated diaphragms provide excellent signal quality and prevent corrosion, ensuring that the microphone continues to perform at high standards over time. Gold plating minimizes signal loss, which is especially crucial in high-performance environments.
2. Size of the Capsule
Larger capsules (8mm and above) typically capture more sound detail, resulting in fuller and richer audio. This is particularly important for lapel microphones, where accurate sound reproduction is key to achieving professional-grade recordings. Larger capsules are ideal for higher-quality audio, but they come with their own challenges—such as wireless interference. We overcome this issue through precise engineering and advanced shielding technologies that allow even larger capsules to maintain superior sound quality without compromising wireless stability.
3. 信号対雑音比（SNR）
A higher SNR results in better sound clarity, reducing unwanted background noise and interference. A great capsule minimizes hums and buzz, providing a cleaner, more professional sound. To achieve this, we incorporate advanced technologies such as Field-Effect Transistors (FET) そして dual-capacitor configurations, which improve noise resistance and minimize distortion. These techniques are essential in high-quality lapel microphones where interference from other devices (such as smartphones or wireless signals) can degrade audio quality.
Introducing Our Premium Microphone Capsules
At ECMIC, we utilize these advanced technologies in our microphone capsules to offer the best possible sound performance. Below are two of our most advanced models that demonstrate the power of quality design and construction:
1. ECM-B6027AL32-358 (6mm Electret Microphone Capsule)
- Dimensions: 6 × 2.7 mm
- 指向性: Omnidirectional
- 感度: -32dB ±2
- Impedance: 2.2KΩ
- S/N比: 70dB
- 最大音圧レベル: 110dB
- Operating Voltage: 2Vdc
- 周波数応答: 20Hz ~ 16KHz
主な特徴:
- Gold-plated copper ring: Ensures high conductivity and minimal signal loss.
- High-Fidelity Sound: Clear, natural sound with minimal distortion.
- Compact Design: Perfect for small wireless lapel microphones, offering premium sound in a small package.
This 6mm capsule is ideal for situations where space is limited but high-quality sound is still required. The gold-plated copper ring ensures superior sound performance by reducing noise and interference, while the high SNR ensures clarity even in complex environments.
2. ECM-B8045AL38-24079 (8mm Electret Microphone Capsule)
- Dimensions: 8 × 4.5 mm
- 指向性: Omnidirectional
- 感度: -38dB ±2
- Impedance: 2.2KΩ
- S/N比: 70dB
- 最大音圧レベル: 120dB
- Operating Voltage: 2Vdc
- 周波数応答: 20Hz ~ 20KHz
主な特徴:
- Gold-plated copper ring: Delivers excellent signal quality and enhanced durability.
- Extended Frequency Response: Captures a broader range of sound frequencies for more natural audio.
- Higher SPL: Handles louder sound sources without distortion, making it suitable for high-energy environments.
The 8mm capsule is a step up in performance, offering enhanced clarity and handling of higher sound pressure levels. This makes it ideal for applications requiring high fidelity and clear voice reproduction, such as vlogging, streaming, and professional broadcasting.
The Role of FET and Dual-Capacitor Designs in Noise Resistance
The design of our microphone capsules goes beyond just size and materials. We employ FET (Field-Effect Transistor) technology and dual-capacitor configurations to enhance the microphone’s resistance to interference and background noise. These technologies are designed to filter out unwanted signals and allow only clean, clear audio to pass through.
- FET technology: Ensures that the microphone is highly sensitive to sound while maintaining a high degree of noise isolation.
- Dual-capacitor design: Helps balance the electrical signal within the capsule, further improving the overall sound quality by reducing interference from external electronic devices.
Why Capsule Size Matters
You may wonder, “Why don’t all lapel microphones use larger capsules?” Larger capsules, such as 8mm or more, tend to pick up more detail, but they require more space and are more prone to interference, especially in wireless mics. However, our capsules incorporate advanced shielding and precise tuning to ensure that even larger capsules maintain superior sound quality without compromising wireless performance.
When choosing a lapel microphone, the capsule is by far the most important factor determining sound quality. Our 6mm and 8mm electret microphone capsules incorporate cutting-edge materials and designs—such as gold-plated copper rings, FET technology, and dual-capacitor configurations—to deliver exceptional sound clarity, low noise, and unmatched durability. These technologies ensure that you get the best possible audio quality, whether you’re creating content for social media, broadcasting live, or recording professional sound.
Investing in a high-quality microphone capsule, like those offered by ECMIC, ensures that your recordings will be clean, clear, and free from interference, no matter the environment.
