Senal SCI-3212 Manual de usuario

Table of Contents:

Introduction �� 2

Overview ��3

Precautions ��4

The Interchangeable Microphone Capsules ��4-5

Stereo Microphone Techniques ��6-9

Speciﬁcations ��10-11

Warranty �� 12

USER’S GUIDE

-3212

Thank you for choosing Senal.

The Senal SCI-3212 is a rugged small-diaphragm condenser microphone capable of delivering

professional-quality audio for a variety of recording applications in the ﬁeld or in the studio�

Its unique design features three interchangeable capsules that allow this microphone to

change polar patterns quickly and easily� The omnidirectional, cardioid, and supercardioid

capsules provide adaptability for a wide range of recording scenarios� The excellent

transient response and high sensitivity assure detailed and accurate sound when recording

instruments or dialog� High SPL handling capability enables close mic placement to

cymbals, pianos, guitars, and other acoustic instruments, as well as recording in high-

noise environments� As a matched pair, the SCI-3212’s versatility provides the option of

selecting between several stereo miking techniques for a wide and true stereo sound�

An included shock mount allows for easy boompole mounting when recording dialog indoors or

in the studio� The included foam windscreen minimizes wind noise when shooting outdoors�

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Introduction

Overview

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Interchangeable

capsule

XLR connector

Shock mount

Cardioid

capsule

Omnidirectional

capsule

Supercardioid

capsule

Foam

windscreen

Carrying case

(SCI-3212MP only)

Precautions

▪ Please read and follow

these instructions and keep

this manual in a safe place�

▪ Keep this product away

from water and all

ﬂammable gases or liquids�

▪ Do not attempt to

disassemble or repair

this product�

▪ Make sure that this product

is intact and that there

are no missing parts�

▪ All images are for

illustrative purposes only�

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Precautions / The Interchangeable Microphone Capsules

The Interchangeable Microphone Capsules

The SCI-3212 comes with the cardioid capsule

attached� To change the capsule:

• Remove the capsule from the microphone by

turning it counterclockwise�

• Attach the new capsule by screwing it

clockwise onto the microphone�

The Interchangeable Microphone Capsules

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Omnidirectional capsule

Due to the high sensitivity of the SCI-3212, the omnidirectional capsule is suitable for capturing

ambient sounds of the environment and for nature recording� It’s also a good choice when recording

live sound or music� Consider the omnidirectional capsule when close-miking guitars or voices in

the studio or in quiet spaces without background noise� As a matched pair, the omnidirectional

capsule is ideal for A/B stereo recording� See A/B (Spaced Pair) technique on page 6�

Cardioid capsule

The cardioid capsule offers a wide variety of uses in the ﬁeld and in the studio� It’s ideal

for capturing acoustic instruments in live and studio settings, and it’s very effective as a

drum mic or as a drum overhead� When recording speech or dialog in the studio or on

location, the cardioid polar pattern is less susceptible to picking up reﬂections than shotgun

microphones� This makes it an excellent option for boompole use� As a stereo pair, the

cardioid capsules are excellent for X/Y and ORTF stereo recording� See X/Y (Coincident

Pair) technique on page 7 and ORTF (Near Coincident) technique on page 8�

Supercardioid capsule

The supercardioid capsule focuses on the sound directly in front of it while

rejecting off-axis sound� This is advantageous when recording interviews or dialog

in noisy environments� It is also well suited for loud stage environments�

Stereo Microphone Techniques

Your matched pair of Senal SCI-3212 microphones is ideal for capturing stereo sound�

Microphone placement is crucial in successful stereo recordings� The following are

a few common microphone techniques for creating stereo sound images�

As in all miking scenarios, experimenting with the distance from your sound source and the

distance between the microphones will ultimately result in the best stereo recordings�

A/B (Spaced Pair) technique

Use the omnidirectional capsules�

• Place the microphones parallel to each other and point

both microphones toward the sound source�

• There’s no hard and fast rule for achieving the best results using this

technique� Experiment by adjusting the distance of the microphones

from the sound source, and the distance of the mics from each other�

• Send the mono signal from each microphone to its own track�

Note: Due to the timing offset of the sound reaching each microphone, you may

experience phase cancellation if mixing the stereo signal down to a mono track�

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Stereo Microphone Techniques

X/Y (Coincident Pair) technique

Use the cardioid capsules� Since the capsules are placed close together, the

stereo image won’t be as wide as the A/B or M/S techniques�

• Place the two microphones at an angle between 90° and 135° so that

the two capsules are very close to each other but not touching�

• The ideal conﬁguration is to have the microphones placed vertically

so that one capsule is directly above the other� However, placing

the microphones side by side will also deliver satisfactory results�

• The wider the angle is, the wider the stereo image will be�

• Send the mono signal from each microphone to its own track�

Note: If you are mixing the two tracks down to a mono track, you will not encounter the

potential phase cancellation issues that can occur in the other mic techniques�

90°–135°

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Stereo Microphone Techniques

ORTF (Near Coincident) technique

Use the cardioid capsules� This technique is good for recording dialog or

sound in stereo without picking up a lot of the ambient room noise�

• Spread the microphones outward at an angle of 110° while

making sure that the capsules are about 6�5″ (17 cm) apart�

• Send the mono signal from each microphone to its own track�

Note: Due to the timing offset of the sound reaching each

microphone, you may experience phase cancellation if

mixing the stereo signal down to a mono track�

6.5″

110°

M/S (Mid/Side) technique

Use either the cardioid or omnidirectional capsules� This technique requires one SCI-

3212 microphone and a ﬁgure-8 (bidirectional) large-diaphragm condenser microphone

like the Senal SCM-660� This technique is excellent for capturing the ambience

surrounding your sound source and often offers the greatest stereo width�

• Point the SCI-3212 directly at the sound source (mid)�

• Place the ﬁgure-8 microphone just below the capsule

of the SCI-3212 and at a 90° angle (side)�

• Send the stereo signal from the ﬁgure-8 microphone

to a stereo track, and the mono signal from the

cardioid microphone to its own mono track�

• The cardioid microphone (mid) will record the sound source

directly in front of it while rejecting the off-axis sound� The

ﬁgure-8 microphone (side) will record the off-axis sound�

Note: Mixing these signals can be tricky� Duplicate the side channel and reverse the polarity�

Then combine both side tracks onto one stereo track� Mix in the mid channel with the

stereo track� The louder the stereo side track is, the greater the stereo width will be�

Stereo Microphone Techniques

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Sound

Source

90°

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Specications

Transducer Back electret condenser

Polar pattern Omnidirectional, cardioid, supercardioid

Frequency response 30 Hz to 18 kHz

Sensitivity -36 dB ±3 dB (0 dB = 1 V/Pa at 1 kHz)

Maximum input SPL 125 dB (THD <1�0% at 1 kHz)

Power requirements 9–52 V phantom power

Equivalent Noise Level ≤27 dB A (IEC 581-5)

Output impedance 350Ω ± 30%

Load impedance ≥1000 Ω

Diameter 0�8ʺ (2cm)

Height 5ʺ (12�8cm)