Wednesday, October 9, 2013

External Microphones for Digital Camera Video

RØDE VideoMic on Panasonic Lumix DMC-FZ200

Roundup and Mini Reviews

Many digital cameras are capable of good video recording, but typically have poor microphones (and noisy preamps) that produce poor audio. For cameras with audio input jacks, an external microphone can be used to greatly improve audio quality.

Directional microphones (e.g., shotgun) are designed to pick up sounds from in front of microphone and camera (typically across an angle of 70-90°) and reject extraneous sounds and noise from sides and rear. Usually monophonic. (See Why Stereo is Problematic for Camera Mics) Roundup:
  • Audio-Technica ATR-6550
    Thin sound. Lacks shock mount. Lacks continuous power on light. Not recommended.
  • Bronstein BRN-900
    Not readily available.
  • Opteka VM-100
    Re-branded RØDE VideoMic (original version) at much lower price. Includes wind muff. Best buy.
  • RØDE VideoMic
    Good sound. Good directionality. Output level pad. Switchable noise filter. Good shock mount. Plastic construction. May pick up RF interference (e.g., from GSM cell phones). Original version pictured above; new version has red Rycote Lyre Suspension System.
  • RØDE VideoMic Pro
    Good sound (about the same as original VideoMic). Good directionality (although not quite as good as original VideoMic). Output level pad. Switchable noise filter. Fragile shock mount. Plastic construction. May pick up RF interference (e.g., from GSM cell phones). Compact. Fairly expensive.
  • Sennheiser MKE 400
    Thin sound. Good directionality. Fragile shock mount. Metal construction. Switchable noise filter. Lacks continuous power on light. Not recommended.
  • Shure VP83 LensHopper
    Very good sound. Output level pad. Good directionality. Switchable noise filter. Metal construction. Good shock mount. Resistant to RF interference. Compact. Expensive. Best.
  • Shure VP83F LensHopper with Flash Recording
    Same as VP83 LensHopper plus high-quality integrated flash memory recorder, great for cameras with automatic level control. Best.
Ambient microphones (e.g., omnidirectional) are designed to pick up sounds from all directions when that is desired, but noise pickup from camera can be a problem. You will generally get much better results from a good external recorder like the Zoom H2. Examples:
  • MegaGear Shotgun
    Thin sound. Inexpensive. Widely available. (Not a true shotgun.)
  • Panasonic DMW-MS1
    Decent, but could and should be better for the money.
  • RØDE Stereo VideoMic
    Good sound. Output level pad. Switchable noise filter. Fairly expensive.
  • RØDE Stereo VideoMic Pro
    Very good sound. Output level pad. Switchable noise filter. Expensive.
2.5mm male to 3.5mm female
headphone adapter cable

Tips

  1. Use a wind muff ("dead cat") to reduce wind noise when outside.
  2. Bronstein WM-21 Wind Muff is good, inexpensive, and will fit the RØDE VideoMic (and Opteka VM-100).
  3. Get as close to your subject as possible. Directional microphones are not like telephoto lenses - they don't amplify sound - they just reduce extraneous pickup from sides and rear.
  4. Use highest output level without distortion to minimize noise pickup from cable and camera.
  5. 2.5mm male to 3.5mm female headphone adapter cable will be needed for cameras with 2.5mm sockets.
  6. Best output pad setting I've found for RØDE VideoMic (and Opteka VM-100) on Panasonic Lumix DMC-FZ200 is -10.

3 comments:

  1. Helpful post....but I had a question. Is it possible to convert a regular digital recorder into a mic for my canon t4i? I have a Sony pm10 that I like a lot, really good sound and vry compact, which is important. I was hoping to find a way to mount it to my canon camera and connect it and have the sound then sync w the video. Is this possible?

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    Replies
    1. I've not tried it, but you can probably use the Sony with your Canon by mounting them on a bracket, connecting a male-to-male audio cable between them (audio out, mic in), and making appropriate settings. See http://powerreviews.s3.amazonaws.com/images_customers/01/34/45342456_384913_raw.jpg

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  2. I thinks in this terms of External Microphones for Digital Camera Video Apps which is very useful to me as well. It has understood that you have posted here which is extreme better than other technological invent. Thanks a lot for letting this info..
    Veron

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