مقدمة
The Audio-Technica AT9900 is a high-quality, high-sensitivity compact stereo microphone designed for digital recording equipment. It features a newly developed pivot floating structure to reduce extraneous vibration noise and a free-angle mechanism for flexible cable output. The microphone includes an indoor/outdoor mode switch to reduce noise, such as wind, ensuring clear recordings in various environments. Its excellent acoustic characteristics are enhanced by a full-surface metal mesh, which helps reduce external noise interference.
محتويات الحزمة
Before use, please ensure all items are present:
- Audio-Technica AT9900 Stereo Lavalier Microphone
- بطارية LR44
يثبت
- أدخل البطارية: Open the battery compartment and insert the supplied LR44 battery, ensuring correct polarity. The microphone requires battery power for operation.
- الاتصال بالجهاز: Plug the 3.5 mm L-type gold-plated stereo mini jack into the microphone input port of your digital recording equipment (e.g., camera, portable recorder, computer).
- موضع الميكروفون: Use the integrated clip to attach the microphone to clothing, such as a lapel or collar, ensuring it is positioned optimally for sound capture.

Image: The AT9900 microphone shown clipped to a jacket lapel, demonstrating its typical lavalier placement for recording.
تعليمات التشغيل
- تشغيل/إيقاف التشغيل: Locate the ON/OFF switch on the microphone body. Slide the switch to the "ON" position to power on the microphone. Slide it to "OFF" when not in use to conserve battery life.
- حدد وضع التسجيل: The microphone features an L-CUT/FLAT switch.
- مستوي: Use this setting for standard recording environments, typically indoors, where a full frequency response is desired.
- L-CUT (Low-Cut Filter): Use this setting in outdoor environments or situations where low-frequency noise (e.g., wind noise, rumble) needs to be reduced. This filter helps to improve clarity of speech or desired sounds by attenuating unwanted low-end frequencies.

الصورة: لقطة مقربة view of the AT9900 microphone's top panel, highlighting the L-CUT/FLAT switch, the AT9900 model indicator, and the ON/OFF power switch.
- بدء التسجيل: Start recording on your connected digital recording equipment. Monitor audio levels to ensure optimal sound capture without distortion.
صيانة
- تنظيف: Wipe the microphone body with a soft, dry cloth. Do not use liquid cleaners or solvents.
- تخزين: Store the microphone in a dry, cool place away from direct sunlight and extreme temperatures.
- استبدال البطارية: Replace the LR44 battery when sound quality degrades or the microphone fails to power on. Dispose of used batteries responsibly.
- العناية بالكابلات: تجنب الانحناءات الحادة أو السحب المفرط للكابل لمنع التلف.
استكشاف الأخطاء وإصلاحها
- لا يوجد صوت/مستوى صوت منخفض:
- Ensure the microphone is switched "ON".
- Check if the LR44 battery is correctly inserted and has sufficient charge. Replace if necessary.
- Verify the 3.5mm jack is fully inserted into your recording device's microphone input.
- Check the input settings and volume levels on your recording equipment.
- الصوت المشوه:
- Reduce the input gain on your recording device.
- تأكد من أن الميكروفون ليس قريباً جداً من مصدر الصوت.
- ضوضاء الرياح المفرطة:
- Switch the microphone to the "L-CUT" mode.
- Consider using an external windscreen (not included) for very windy conditions.
تحديد
| عنصر | Stereo Electret Condenser |
| النمط القطبي | أحادي الاتجاه |
| استجابة التردد | 70-16,000 هرتز |
| حساسية | -42 ديسيبل (7.9 مللي فولت) re 1 فولت عند 1 باسكال |
| مقاومة | 2,000 أوم |
| مزود الطاقة | Battery/Plug-in Power |
| نوع البطارية | ال ار 44 |
| عمر البطارية | حوالي 300 ساعات |
| الأبعاد (الارتفاع × العرض × العمق) | 41 × 58 × 20 ملم |
| وزن | 23 g (microphone only) / 37 g (item weight from specs) |
| طول الكابل | 1.6 متر |
| موصل | 3.5 mm L-type gold-plated stereo mini jack |
| إشارة إلى نسبة الضوضاء | 80 ديسيبل |
| مادة | معدن |
ملحوظة: المواصفات قابلة للتغيير دون إشعار بهدف تحسين المنتج.
الضمان والدعم
Audio-Technica products are manufactured to high quality standards. For warranty information, please refer to the warranty card included with your product or visit the official Audio-Technica webالموقع للحصول على تفاصيل خاصة بمنطقتك.
For technical support, troubleshooting assistance, or service inquiries, please contact Audio-Technica customer support through their official webموقع: Audio-Technica Official Store.