Crown Audio by Harman

Search:     Advanced search
Glossary



How to mike students and eliminate background noise?

Some of the teachers at my school are working on National Board Certification and need to video small groups of kids working together. Our PZM mic picked up not only the voices of the four kids in each group but also every cough and comment from all over the room. What kind of mic would get just the four kids in each group and not every sound in the room?
 
Reply: Try a cardioid mic on a desk stand. A microphone with a cardioid pickup pattern rejects sound from the rear, partly rejects sound from the sides, and has a wide area of pickup in front. Two examples of cardioid microphones are the Crown CM-200A and CM-700. Compared to a PZM on the table, a mic on a desk stand will be a little closer to the students, which also helps isolation.
Others in this Category
document Do PZMs need boundaries to reject sound?
document Can I order your PZM 30D/6D with 1/4" connectors?
document What is the wiring for old PZMs (PZM-30GP, PZM-31S, PZM-6S)?
document Have you a schematic for a PX-T phantom power adapter for an older PZM microphone?
document How do I mount a PZM to a panel? Is a PZM waterproof?
document How do I wire a PZM-10LL to my mixer mic input?
document Which PZM should I choose for drums?
document I want to use a PZM-11 or PZM-11LL with a VCR. What do I need to make the mic work?
document How far can a PZM-11LL mic be from the area I want to record voices from?
document Should I use PZM-11 or PZM-11LL for voice recognition?
document Where to place a PZM-11LL to prevent picking up duct noise?
document Would wireless PZM-30D and PZM-185 mics work to record a conference?
document How can I mike a piano with a PZM without using tape?
document Where can I get information on discontinued PZM microphones?
document How far can I mike a conference with the PZM-10?
document Do you have a wall-mount PZM for voice recognition?
document Where should I place PZM-11LL mics for voice recognition?
document How do I connect a PZM-185 or Sound Grabber II to my camcorder?
document Will PZM-185 mics work for audience miking?
document PZM-11LL signal level too low?
document PZM-185 output level vs. Sound Grabber output level
document Choosing the right PZM for recording music
document PZM-185 output level vs. Sound Grabber II output level
document What are the advantages of boundary (surface-mounted) mics like PZM and PCC mics?
document PZM history
document Picking up birds at a nature center
document PZM mounting and waterproofing
document Can the PZM-11LLWR be changed from its line-level output to a mic-level output?
document Miking flute recitals with flat floor mics
document Sound Grabber II or PZM-185?
document Clandestine listening room