Microphone Techniques; Proximity Effect - Shure PG27-USB Mode D'emploi

Microphone Techniques

APPLICATION
Vocals
Guitar & Bass
Amplifiers

Proximity Effect

Unidirectional microphones such as the PG27-USB progressively boost bass frequencies by 6 to 10 dB below 100
Hz when the microphone is at a distance of about 6 mm (1/4 in.) from the sound source. This phenomenon, known
as proximity effect, can be used to create a warmer, more powerful sound.
SUGGESTED MICROPHONE PLACEMENT
Lips less than 15 cm (6 in.) away or touching
the windscreen, on axis to microphone.
15 to 60 cm (6 in. to 2 ft.) away from mouth,
just above nose height.
20 to 60 cm (8 in. to 2 ft.) away from mouth,
slightly off to one side.
90 cm to 1.8 m (3 to 6 ft.) away.
2.5 cm (1 in.) from speaker, on-axis with cen-
ter of speaker cone.
2.5 cm (1 in.) from speaker, at edge of
speaker cone.
15 to 30 cm (6 to 12 in.) away from speaker
and on-axis with speaker cone.
60 to 90 cm (2 to 3 ft.) back from speaker, on-
axis with speaker cone.
TONE QUALITY
Robust sound, emphasized bass,
maximum isolation from other
sources.
Natural sound, reduced bass.
Natural sound, reduced bass and
minimal "s" sounds.
Thinner, distant sound; noticeable
levels of ambient noise.
Sharp attack; emphasized bass.
Sharp attack; higher frequency
sound.
Medium attack; full, balanced
sound.
Softer attack; reduced bass.
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