We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
A CURE FOR MANY STUDIO ACOUSTIC ILLS
-the RCA Uni-Directional Microphone
MANY ailments caused by poor studio acoustics can be cured with this remedy — the new RCA Uni-Directional Microphone!
Type 77-A picks up sound coming only from one direction — practically kills all unwanted sounds. It is particularly adaptable to small studio work, and in large auditoriums, for it picks up a much lower percentage of reflected sound. Its wide pick-up covers the entire stage or studio where broadcasters are located. This makes use of two or three microphones unnecessary.
This microphone uses but a single ribbon. It operates on two proved principles — upper half. Pressure — lower half. Velocity. It has an ingenious labyrinth for proper terminating impedance. Offers uniform frequency response, clear and natural reproduction. Can be used interchangeably, or can be mixed with standard Velocity or Inductor type microphones. Complete information on request.
THIS NEW MICROPHONE FEATURES
^ Uniform wide-angle response from the front.
2 Negligible response at ALL frequencies from the back.
3 Attenuates audience noises in theatres or large studios.
i|[ Can be placed closer to the wall in small studios without pick-up of reflected sound.
5 Can be tilted and rotated conveniently.
^ Can be used with all RCA Microphone Stands, or suspended.
50
Type 77-A Microphone is uniquely aflapted for pick-ups in auditoriums, theatrt-s, night clubs aofl the like, where audience noise is always a problem. Because of wide angle pick-up, one microphone will usually sxiffice, even for large ensembles.
I I I
I I I
I I I
I I I
I I I
O o 0 o
Mlc.^ O O 0 0
O 0 o
' °'o' o O 0
I I I
I I I ''o o 0 Audience Artist*
Noise-discriminating feature of this microphone is similarly valuable if a large audience is in limited space.
In small studios the Type 77-A Microphone has the advantage that it can be placed close to the back wall, with much less pick-up of reflected sound from the back.
I O MicO
I o
O O *5 o \ , o o o o * 0 o 0 o I ° O o o /'
RCA MANUFACTURING COMPANY, INC., CAMDEN, N. J. • A Service of the Radio Corporation of America New York: 1270 Sixth Ave. Chicago: 589 E. lUinois St. Atlanta: 490 Peachtree St., N.E. Dallas: 2211 Commerce St. San Francisco: 170 Ninth St.