Livestream Mall - Global Marketing Center

高灵敏拾音器 高保真识音器 降噪灵敏度可调 带接头集音器
  • Retail Price:
    ¥ 62.00
  • Lot Price:
    ¥ 52.50 (30 个s Min Order)
  • Bulk Price:
    ¥ 43.00 (60 个s Min Order)
  • Shipping Fee:
    Express Delivery: ¥ 15.00
  • Product:
    New Product
  • Views: 52168 person(s)
  • Payment:
    Online Payment/Bank Transfer
  • Color:
    • 图示
  • Size:
    • 默认
  • Quantity:
    Decrease Increase
    (Stock: 500piece(s))
By Livestream Mall Official Store

Livestream Mall Official Store

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  • Product Details
  • Category: 监控周边配件
  • Type:
  • Model: JYG009
  • Color: 图示
  • Tag: 带接头集音器
  • Product ID: 100006925

专为监控,防盗报警等安防系统配套使用所设计的专业级产品,适合正常范围内的监听及录音,监听范围10~150平方米,内置电位器可以调节灵敏度

 

 

 

独有的高灵敏度,低噪音,低失真,体积小,工作电压范围宽,内置电源反向保护电路,耗电小,传输距离远,连线简单方便,可大范围监听,并且适合暗装,明装方式,可广泛应用于银行,金融,商场,监狱,司法院,考场,会议室,工业生产,军事重地,等多种场所。还可将该音频采集器(拾音器)与无线转发器连接应用到高速公路收费站等。

 

 

 

§高保真低噪声处理芯片

 

§高级咪抑制环境噪声

§半球外壳灵敏度可调节

§会议室,大厅常用

§内置降噪处理电路

§电源极性保护电路

10~100平方米

阻抗600欧姆

频率200~10Khz

电源9~14VDC

尺寸Φ72*41mm

适合海康,大华等DVR设备

 

 

 

拾音器简介:

拾音器是什么?是用于同步录音录像监控的拾音配件。形象地说:摄像头是眼睛,拾音器就是耳朵。硬盘录像机负责存储声音和图像,监视器和音箱则用于回放。

拾音器是麦克风?不全对。拾音器不但包含高灵敏度麦克风,还集成前置放大电路。因此, 拾音器可以直连DVR、有源音箱、耳机、声卡等,而麦克风还需连接功放。另外,普通麦克风通常是定向的和低灵敏的,在很近的距离对准了说话才行。拾音器为了拾音更远,大多被设计成高灵敏度、无方向或全指向性的。

高保真拾音器,白色小半球形状,电源及信号引线需自行接入拾音器,带灵敏度调节(打开后调节),适应能力更强,自备螺丝固定安装。适合大部分场合,有效监听范围:安静场所30-60平方米,普通环境10-20平方米.工作电压:DC 6V-12V 12MA频率范围:300hz-5khz 2.5db输出阻抗:600欧姆0-6V外观:直径69MM高度39MM

安装拾音器

1、拾音器安装位置的选择

拾音器可以在天花板上吸顶安装,也可以在墙面侧挂安装。安装位置尽量离主要的谈话区域较近就可以。比如,审讯室可以安装在被审人附近;教室可以安装在讲台附近;小型会议室可以安装在天花板中央。安装原则:尽量靠近主要的谈话区域,这样的拾音效果更佳。

2、拾音器连接电缆的选择和布线

拾音器连接电缆的技术指标要求不高,可以使用普通的屏蔽信号线缆,也可以采用双绞线传输器配合普通的超五类网线传输。拾音器供电一般采用远端集中供电方式(即在音频记录设备端/扩音设备端集中供电),注意:布线时最好单独走线,不要同交流电等强电使用同一缆槽,同时尽量远离变压器、灯具整流器等强电磁干扰设备。

3、电源选择与连接

拾音器供电方式要求采用远端集中供电(即在音频记录设备端/扩音设备端集中供电),该系列拾音器可以使用8V-20V宽范围直流稳压电源,推荐使用DC12V。电源线如果大于500米,由于线损产生电压下降,推荐使用15V-20V直流稳压电源。由于拾音器是非常灵敏的小信号放大设备,所以对电源的杂波比较敏感,务必使用杂波小的洁净优质直流稳压电源。单个拾音器消耗的电流大约10-30毫安,也就是说一台标称值为1安培的直流稳压电源可以至少供10多个拾音器同时工作。应用中应当考虑到电源效率和线损问题,尽量选用标称值较高的电源。这里所指的直流稳压电源就是常说的“ 变压器”,一般由电源变压器、整流二极管、滤波电容及集成稳压器构成。一般情况下不适宜使用开关电源,它可能会给拾音器引入大量的电路杂音!什么是开关电源? 简单的说: 就是开关型直流稳压电源,是用电子开关管和电子开关震荡器组成的一种自动稳压电源。比如普通台式计算机电源就是开关电源。

4、电源负极和音频地线的共地连接

拾音器音频地线和电源负极合二为一,必须同时接到直流稳压电源的负极和音频设备音频输入端(Line In)的地线上。如果电源地和音频地没有良好地接好, 会导致声音品质下降或没有声音。如果音频设备Line In端子的地没有和拾音器的地线相接,一般来说声音会非常小。

5、音频线的连接

音频信号线和音频地线可以直接连接的设备:随声听耳机、有源音箱、音响功放、音视频分配器、DVR硬盘录像机、视频服务器、调音台、录音机、声卡或其他音频设备的Line In线性输入端(严禁接麦克风接口)。

连接硬盘录像机:硬盘录像机大都有相应的音频输入端口,一般为同轴电缆BNC插头。拾音器音频线需要连接到BNC插头的中心插针位置, 拾音器公共地需要连接到BNC插头的外壳(也就是连接同轴电缆的屏蔽铜网)2、 自带功放的有源音箱。一整套普通的有源音箱一般都是左右两只,分别对应音频线的左右声道。此款拾音器只提供一路音源,所以它是“ 单声道” 音源。拾音器的音频线接音箱线的左/右声道音频线,拾音器公共地接音箱线的地线。3、 其他诸如功放、调音台等音频设备的连接方法等同上述方式。4、 严禁把拾音器接入声卡、调音台、功放等设备的麦克风(MIC)输入端,否则可能损坏设备。这是因为拾音器内部虽然也包含麦克风,但同时也包含放大、降噪、回声处理等电路,输出1Vpp以上的“Line Out”音频信号。5、 笔记本计算机很少配备有“Line In” 音频输入插孔,一般只配备MIC输入插孔和SPEAKER输出插孔。拾音器不能直接接入到MI C口,只能购买一台专业的外置USB接口台式声卡,使用其中的“Line In”端口来接。6、 拾音器音频线不能直接接到两种音频设备上,必须连接拾音器适配器,以避免由于阻抗不匹配可能引起的音质变差。注意:在所有连接过程中或拨动开关时,将您的放大设备的音量调节到最小,避免瞬间的电冲击。

 

6、拾音器声音增益(音量大小)调节

必须注意:拾音器输出声音幅度过大会导致硬盘录像机、音箱等后端音频设备声音阻塞音质变坏。请注意调节到合适程度。

















Shopping Notice for Livestream Mall Official Store

Free shipping is available for single small items sold by Livestream Mall Official Store with a single cumulative order of RMB 200 or more (excluding large items, items specified in the description; and remote mountainous areas, Xinjiang, Tibet, Gansu, Hong Kong, Macau, Taiwan).
Goods sold by Livestream Mall Official Store support 7-Day No-Worry Return & Exchange. Exceptions apply to legally regulated excluded items: customized goods, perishables, downloaded or opened digital products, and delivered newspapers & periodicals.
All products for sale in Livestream Mall Official Store are manufactured by cooperative manufacturers, 100% genuine guaranteed. Please shop with confidence, and formal invoices can be issued for all products sold.

About Products

  • 1. All products for sale in Livestream Mall Official Store are 100% genuine guaranteed.
  • 2. Formal invoices can be issued for all products for sale in Livestream Mall Official Store.
  • 3. All products for sale in Livestream Mall Official Store are manufactured by cooperative manufacturers. Product pictures are taken in kind, and no unit or individual may steal them without permission, otherwise legal liability will be pursued!
  • 4. Warm Reminder: All accessories worn by models are for photo matching effects only and not for sale; product transaction orders shall be based on communication with online customer service!

About Color Difference

  • 1. Due to differences in lighting, angles, color deviation of display devices, and understanding of various colors and batches during shooting, there may be slight differences between the actual product and the color displayed on the computer. The actual product shall prevail for specific colors!

About Logistics

  • 1. Products sold by Livestream Mall Official Store are delivered by express delivery (large or special products and products with logistics notes shall be subject to the description). Normally, we will try our best to ship the same day for orders paid before 16:00, and all orders will be shipped within 72 hours (except pre-sales and special circumstances).
  • 2. The specific logistics method and resulting freight for shipments to Hong Kong, Macau and Taiwan shall be subject to the description displayed on the product purchase page or the actual fees required by the logistics company. Please carefully set the receiving address before purchase, which cannot be modified after setting. In accordance with relevant regulations in Taiwan, Taiwanese members must submit the correct contact phone number and ID number in the order recipient information file for customs clearance and contact use by cross-border express logistics providers. For overseas regions, please contact online customer service to confirm before shipment.
  • 3. Buyers can check the logistics status of orders by themselves using the logistics tracking number. Due to the update speed of the third-party logistics system, there may be cases where the goods are in transit but the logistics information is not updated (usually the logistics information will be updated when arriving at the next transfer station or handover point). Please wait patiently, or check through the tracking number of the undertaking logistics company.

Return Service Standards

  • Livestream Mall Official Store strictly abides by transaction rules and supports the "7-Day No-Worry Return & Exchange" service. Specifically:
  • 1. Livestream Mall Service Commitment: Products sold are eligible for the "7-Day No-Worry Return & Exchange" service, except for commodity categories that do not support this service as stipulated by laws (1. Custom-made products for consumers; 2. Perishable products; 3. Digitized products such as audio-visual products and computer software that have been downloaded online or unsealed by consumers; 4. Delivered newspapers, periodicals and other related category products).
  • 2. Validity period for submitting return/exchange: Submit within 7 days from the date of confirming receipt of the goods (based on the logistics signature time).
  • Return Fee Explanation:
  • If the return is due to the buyer's reasons, and the returned/exchanged goods are guaranteed to be undamaged and do not affect secondary sales, the buyer shall bear the round-trip freight for the return/exchange. If the return/exchange is caused by product quality problems, the round-trip freight shall be borne by Livestream Mall Official Store, but the buyer shall prepay the freight first. After the customer service of Livestr Mall receives the returned goods and confirms they are correct, the freight for the returned/exchanged goods will be transferred to the buyer's account.
  • Return Submission Method:
  • Online Application: Enter "My Livestream Mall" - "Transactions (Order List)", select the transaction, click "Refund/Return & Exchange", and submit the return/exchange application; Special Agreement: Since products are shipped directly from manufacturers, you must contact online customer service to confirm before returning, and confirm the recipient's name, address, phone number and contact person for return/exchange to avoid unnecessary losses caused by lost goods.
  • If the goods are lost due to incorrect address, phone number or recipient information filled in by the buyer on the waybill when returning/exchanging goods, the buyer shall handle it by themselves.
  • The contact information for Livestream Mall Official Store to receive returned/exchanged goods is as follows:
  • Recipient Name: Marketing Department No.1, Zhejiang Shuida Network Technology Co., Ltd., China
  • Recipient Address: Room 2022, Building 3, Wanda Plaza, Keqiao District, Shaoxing City, Zhejiang Province, China
  • Tel: 0086-575-85672028 0086-575-85670760
  • Mobile/WeChat: 13018808788 / 18906750386