Apologies for the lack of new material but the mobile and the studio are so busy at the moment that weve just not had time to put any new stuff up. We have some great new sessions waiting to go up and a sneak preview of a fantastic new compresser but thats all to come!!!!! In the meantime have a read about the first in our series of great mics under £100
Dynamic microphones
are generally seen as live or stage microphones and Condenser
mics as studio recording mics, though there is a broad cross over
and you will find that every recording studio in the world has
a few dynamic microphones for particular applications. Dynamic
microphones are pretty tough and can take big sound levels without
distorting, making them great for live vocals, sticking in front
of a Marshall cab and especially pointing at drums. As in all
microphones, sound pressure moves an element in the mic creating
a small electrical current and in different designs this is achieved
in different ways. In dynamic microphones a small movable induction
coil, positioned in the magnetic field of a permanent magnet,
is attached to a thin diaphragm and when sound vibrates this diaphragm,
the movement produces a small current through electromagnetic
induction and the principle is in fact pretty much the same as
in a loudspeaker, only reversed.
Recording
This circular diaphragm has produced the classic microphone
shape but in the other dynamic microphone type, Ribbon
microphones, the diaphragm is replaced by a stretched
ribbon of aluminium producing a generally larger, longer design.
Normal dynamic microphones don’t need any external power
supply, they are fairly cheap to manufacture, pretty tough and
resistant to moisture, and for this reason they are widely used
on-stage by singers. The vast majority of dynamic mics on the
market have a cardioid or Hypercardioid pattern which picks
up sound from directly in front of the mic and rejects sound
from the sides and rear, characteristics which make them eminently
suited for live vocal work where separation from the rest of
the musicians is needed. However there are some omni pattern
dynamic stage mics such as the Audio
Technica AT804 and omni dynamic mics like the Shure
SM63 are popular in ENG and field recording work. As technology
has advanced and new materials have been developed, so the difference
in quality between dynamic and condenser mics has narrowed and
the traditional price differential between the two types has
all but vanished. However don't be tempted to think that because
you can get a cheap Chinese condenser mic for the same price
as a SM57 that you dont need a SM57. Try miking a drum kit and
discover why the classic dynamic mics like the SM57 and Sennheiser
421 are considered classic dynamic microphones for a good reason.
