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Roundup: Compact Mics for Compact Cameras

Recently I reviewed the Canon XA40 compact camcorder. 我强调“紧凑”,因为我用来发声的大多数麦克风都有点大. While it does have stereo mics built into its body, I wouldn't use them for much more than home video. 专业品质的声音需要好的第三方麦克风.

Looking into the sound arsenal I had on hand, 我发现我的内部麦克风都不够紧凑,不能很好地配合这款相机. My Azden SGM-250 shotgun is longer than the camera itself. 我的Audio-Technica system10数字无线接收机并不大, but is a bit bulky for the smaller camera. The same is true of my analog Sennheiser G2 system.

当你为客户拍摄时,像XA40(以及它的sdi兄弟产品XA45)这样的紧凑型4K相机不一定看起来像大型相机那样专业, 但它们提供了足够的专业功能,对于需要轻便旅行或携带紧凑型套件的专业制作人来说,它们非常值得考虑. 选择这样的相机也意味着搭配合适比例的紧凑型齿轮, as I discuss in my XA40 review.

所以我开始寻找麦克风,将安装和平衡良好的XA40. Around the same time as I received the XA40, 阿兹登给了我一个鸟枪麦克风和一个无线麦克风系统来试试. 我将首先讨论这些,然后转到Movo发送审查的两个紧凑麦克风选项.

Azden SGM-250CX Short Shotgun Microphone (MSRP $199)

The Azden SGM-250CX (Figure 1, below) is a great short shotgun mic. I reviewed its big brother, the SGM-250, and continued to use it with my Sony HVR-S270, Sony HVR-Z7, and Canon XF705. When I reviewed the SGM-250 3 years ago, 我对它的清晰度和对声音的拒绝印象深刻.

我很高兴地发现,SGM-250CX包装相同的质量到一个6“麦克风,我得到在10”SGM-250. 而我通常使用相机上的短猎枪来备份手持或无线麦克风系统, 如果我的主要音频设置失败,它仍然需要提供可用的声音. I used the XA40 to record a bar mitzvah, 在那里,SGM-250CX出色地捕捉到了4或5英尺外阅读Torah的男孩, while rejecting the other noise in the sanctuary.

Figure 1. The Azden SGM-250CX on-camera shotgun mic

The mic comes with its own shock mount, 冷鞋适配器,可以让你把它放在没有麦克风的相机上. But it will still need XLR input. 你必须记住,这款麦克风需要虚拟电源,不像它的大哥那样有AA电池选项. 因此,如果你想把它连接到一个有3的相机上,它就不是一个好的选择.5mm mic input. Even with an XLR-to-3.5mm适配器,你不会得到幻象电源使其工作.

Azden PRO-XR数字无线Lav麦克风系统(建议零售价249美元)

正如我前面提到的,对于我的大多数主要音频视频录制,我使用无线系统. Usually, 它是一个麦克风夹在主机或一个发射器插入混音板的lavaliere系统.

The Azden PRO-XR (Figure 2, below)是一个紧凑的数字系统,到目前为止,对我来说工作得很好. The PRO-XR shouldn’t be confused with the Azden PRO-XD, 几年前我在另一本杂志上评论过,这是我用过的最糟糕的麦克风系统. 看来阿兹登拿走了XD的外壳,并用全新的组件填充了它,这些组件运行得非常好.

Figure 2. The Azden PRO-XR wireless mic system

The PRO-XD suffered from horrible dropouts. 事实证明,拥挤的Wi-Fi区域(现在几乎在室内的任何地方)都会导致Pro-XD失去信号. 我用PRO-XR尝试了同样的区域,取得了很好的效果. 发射机的一个巧妙之处在于,除了用于电视的输入外,还有第二个3.5mm input that you can attach to a line-level source. 发射机侧面的开关甚至可以让您选择在法律和线路输入之间的混合. That’s flexibility!

发射器和接收器都很薄很紧凑. 插入发射器的麦克风也比PRO-XD自带的巨大麦克风小得多. PRO-XD附带的那个是我见过的最大的麦克风头. The new mic is a much more reasonable size.

PRO-XR还配备了两种类型的发射器天线:一种更小,更灵活, with less range; the other thicker, rigid, 对于那些不反对更厚的天线的人才来说,这是更强大的, depending on their body type.

为了避免掉线,您可以将发射机的功率输出调整为20、50或100兆瓦. The more power, the quicker the batteries run out. 发射器和接收器都有内部可充电电池. 它们都可以通过连接到手机充电器的任何Micro USB线充电, computer, or car outlet. 如果你觉得你的手机快没电了,你可以给它接上一个充电宝,以获得外部电源.

The PRO-XR comes with a 3.5毫米立体声电缆连接到数码单反或消费视频相机, 以及一个立体声到手机(3环)电缆,记录到手机. 如果你想在有XLR输入的专业相机上录制,你将需要Azden的3.5mm stereo-to-stereo XLR MX-2 cable, available for $22. 您可以插入两个xlr以在两个通道或仅一个通道上获得相同的内容. They both have the same signal.

In use, PRO-XR提供了良好的音质,除了两个随机事件, where for a couple of minutes, it sounded like the person talking was slightly underwater. 我发现我可能应该把发射机的输出功率提高到50兆瓦,而不是默认的20兆瓦,因为我们在一个潜在的高流量Wi-Fi区域录音.

除此之外,我认为PRO-XR应该适合大多数摄像师. 只要确保发射器和接收器之间的距离设置正确即可, and monitor for signal problems.

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