Senal SCI-3212 User Manual

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

SC

I

-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 highnoise 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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2

Introduction

Overview

Interchangeable

capsule

Cardioid

capsule

Omnidirectional

capsule

Supercardioid capsule

Shock mount

Foam

XLR connector

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Overview

windscreen

Carrying case

(SCI-3212MP only)

3

Precautions

The Interchangeable Microphone Capsules

▪ 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�

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�

▪ 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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4

Precautions / The Interchangeable Microphone Capsules

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�

The Interchangeable Microphone Capsules

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5

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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6

Stereo Microphone Techniques

X/Y (Coincident Pair) technique

90°–135°

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�

Stereo Microphone Techniques

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7

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�

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8

6.5″

110°

Stereo Microphone Techniques

M/S (Mid/Side) technique

Source

Use either the cardioid or omnidirectional capsules� This technique requires one SCI3212 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)�

Sound

• 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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90°

9

Speciﬁcations

Transducer

Polar pattern

Frequency response

Sensitivity

Maximum input SPL

Power requirements

Equivalent Noise Level

Output impedance

Load impedance

Diameter

Height

Weight

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10

Back electret condenser

Omnidirectional, cardioid, supercardioid

30 Hz to 18 kHz

-36 dB ±3 dB (0 dB = 1 V/Pa at 1 kHz)

125 dB (THD <1�0% at 1 kHz)

9–52 V phantom power

≤27 dB A (IEC 581-5)

350Ω ± 30%

≥1000 Ω

0�8ʺ (2cm)

5ʺ (12�8cm)

3�8 oz (108�2g)

Specications

Frequency Response Graph

Frequency in Hertz

Relative Response in dB

-20

Omnidirectional

Cardioid

Supercardioid

-30

-40

-30

-40

-50

-20

-30

-40

50

0

100 500

50

100 500

50

100 500

200

Polar Pattern

0°

180°

0°

180°

0°

180°

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

330°

300°

270°

1K

2K

5K

10K

1K

2K

5K

10K

1K

2K

5K

10K

20K

240°

210°

330°

300°

270°

240°

210°

330°

300°

270°

240°

210°

Specications

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11

Two-Year Limited Warranty

This Senal product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of two (2) years from the original purchase date or thirty (30) days after replacement, whichever occurs later� The warranty provider’s responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider’s discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment� Inoperability of the product or part(s) shall be determined by the warranty provider� If the product has been discontinued, the warranty provider reserves the right to replace it with a model of equivalent quality and function�

This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance� EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE� This warranty provides you with speciﬁc legal rights, and you may also have additional rights that vary from state to state�

To obtain warranty coverage, contact the Senal Customer Service Department to obtain a return merchandise authorization (“RMA”) number, and return the defective product to Senal along with the RMA number and proof of purchase� Shipment of the defective product is at the purchaser’s own risk and expense�

For more information or to arrange service, visit www�senalsound�com or call Customer Service at 212-594-2353�

Product warranty provided by the Gradus Group� www�gradusgroup�com

GG4

Senal SCI-3212 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual