Audio-Technica AT4047MP Bruksanvisning

Audio-Technica Mikrofon AT4047MP

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40 series microphones

AT4047MP

Multi-Pattern Condenser Side-Address Microphone

Features

• Speciallyengineeredtomeetthemostcriticalacoustic

 requirementsofprofessionalrecording,broadcastandsound

 reinforcement

• Threeswitchablepolarpatterns:omnidirectional,cardioid,

 gure-of-eight

• Transformer-coupledoutputandspeciallytunedelementprovide

 soniccharacteristicsreminiscentofearlyF.E.T.studiomicrophone

 designs

• Exceptionallylowself-noise,widedynamicrangeandhigh

 SPLcapability

• Dual-diaphragmcapsuledesignmaintainsprecisepolarpattern

 denitionacrossthefullfrequencyrangeofthemicrophone

• Precision-machined,nickel-platedbrass,acousticelementbafe

 providesenhancedelementstabilityandoptimalsensitivity

• Vintagesilver-mattenishonmicrophoneandshockmount

• Openacousticalenvironmentofthesymmetricalhousing

 assemblyminimizesunwantedinternalreections

• Customshockmountprovidessuperiorisolation

• Integral80Hzhigh-passlterswitchand10dBpadswitch

• State-of-the-artdesignandmanufacturingtechniquesensure

 compliancewithA-T’sstringentconsistencyandreliabilitystandards

Description

The AT4047MP is a large-diaphragm side-address externally polarized

(DC bias) condenser microphone with three switchable polar patterns:

omnidirectional, cardioid, and gure-of-eight. It is designed to meet the

most critical acoustic requirements of professional recording, broadcast

and sound reinforcement.

The microphone requires 48V phantom power for operation.

The omnidirectional polar pattern is sensitive to sound coming from

all directions. Select the omni pattern to pick up several voices or

instruments on the same microphone, to diminish proximity effect, and

to preserve the location’s ambient sound.

The cardioid polar pattern is more sensitive to sound originating directly

in front of the element, making it useful in controlling feedback, reducing

pickup of unwanted sounds and providing isolation between performers.

The gure-of-eight polar pattern is more sensitive to sound originating in

the front and back of the microphone, rejecting sounds from the sides. It

is often used in conjunction with advanced stereo miking techniques.

The output of the microphone is a 3-pin XLRM-type connector.

The microphone is equipped with a switchable 10 dB pad and a switch

that permits choice of at response or low-frequency roll-off (via integral

80 Hz high-pass lter).

The microphone is enclosed in a rugged housing. The included AT8449/SV

shock mount provides superior isolation and permits mounting on any

microphone stand with

"-27 threads. A dust cover and a protective

carrying case are also included.

Operation & Maintenance

The AT4047MP requires 48V phantom power for operation.

Output is low impedance (Lo-Z) balanced. The signal appears across Pins

2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” – positive

acoustic pressure produces positive voltage at Pin 2.

To avoid phase cancellation and poor sound, all mic cables must be wired

consistently: Pin 1-to-Pin 1, etc.

A raised Audio-Technica emblem and the pattern-selection switch are on

the front of the microphone. Position this side of the microphone toward

the sound source.

The pattern-selection switch provides user-selection of omnidirectional,

cardioid, and gure-of-eight polar patterns. To select the omnidirectional

polar pattern, slide the switch to the circular polar pattern image. To select

the cardioid polar pattern, slide the switch to the heart-shaped polar pattern

image. To select the gure-of-eight pattern, slide the switch to the gure-

eight shaped polar pattern image.

An integral 80 Hz high-pass lter provides easy switching from a at

frequency response to a low-end roll-off. The roll-off position reduces the

microphone’s sensitivity to popping in close vocal use. It also reduces

the pickup of low-frequency ambient noise (such as trafc, air-handling

systems, etc.), room reverberation and mechanically coupled vibrations. To

engage the high-pass lter, slide the switch toward the “bent” line.

The microphone is also equipped with a switchable 10 dB pad that lowers

the microphone’s sensitivity, thus providing higher SPL capability for

exible use with a wide range of users and system congurations. To

engage the 10 dB pad, slide the switch toward the -10 position.

In use, secure the cable to the mic stand or boom, leaving a slack loop

at the mic. This will ensure the most effective shock isolation and reduce

the possibility of accidentally pulling the microphone out of its mount.

Avoid leaving the microphone in the open sun or in areas where

temperatures exceed 110° F (43° C) for extended periods. Extremely high

humidity should also be avoided.

Architect’s and Engineer’s Specications

The microphone shall be a large-diaphragm side-address externally

polarized (DC bias) condenser with user-switchable omnidirectional,

cardioid, and gure-of-eight polar patterns and a frequency response of

20 Hz to 18,000 Hz. The microphone shall operate from an external 48V

DC phantom power source. It shall be capable of handling sound input

levels up to 155 dB (165 dB with 10 dB pad) with a dynamic range of 141

dB. Nominal open-circuit output voltage shall be 7.9 mV at 1V, 1 Pascal.

Output shall be low impedance balanced (100 ohms).

The output of the microphone shall be a 3-pin XLRM-type connector.

The microphone shall be equipped with a switchable 10 dB pad, a switch

that permits choice of at response or 80 Hz low-frequency roll-off and a

polar pattern selection switch.

The microphone shall be 188.0 mm (7.40") long and have a maximum

body diameter of 53.4 mm (2.10"). Weight shall be 524 g (18.5 oz). The

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

AT4047MP

microphone shall include a shock mount, a dust cover and a protective

carrying case.

The Audio-Technica AT4047MP is specied.

Specications

cardioid frequency response:

20–18,000 Hz

gure-of-eight frequency

response: 20–18,000 Hz

omni frequency response:

20–18,000 Hz

LEGEND

200 Hz

1 kHz

5 kHz

8 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12" or more on axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

200

10k

500

20k

Roll-off

LEGEND

200 Hz

1 kHz

5 kHz

8 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12" or more on axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

200

10k

500

20k

Roll-off

LEGEND

200 Hz

1 kHz

5 kHz

8 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12" or more on axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

200

10k

500

20k

Roll-off

cardioid polar pattern

omni polar pattern

gure-of-eight polar pattern

Externally-polarized (DC bias) condenser

Cardioid, Omnidirectional, Figure-of-eight

20-18,000 Hz

80 Hz, 12 dB/octave

–42 dB (7.9 mV), re 1V at 1 Pa

100 ohms

155 dB SPL, 1 kHz at 1% T.H.D.;

165 dB SPL, with 10 dB pad (nominal)

14 dB SPL

141 dB, 1 kHz at Max SPL

80 dB, 1 kHz at 1 Pa

48V DC, 3.4 mA typical

Polar selection; Flat, roll-off;

10 dB pad (nominal)

524 g (18.5 oz)

188.0 mm (7.40") long,

53.4 mm (2.10") maximum body diameter

Integral 3-pin XLRM-type

AT8449/SV shock mount for

"-27

threaded stands; microphone dust cover;

protective carrying case

Element

Polar patterns

Frequency response

Low frequency roll-off

Open circuit sensitivity

Impedance

Maximum input sound level

Noise

Dynamic range (typical)

Signal-to-noise ratio

Phantom power requirements

Switches

Weight

Dimensions

Output connector

Audio-Technica case style

Accessories furnished

In the interest of standards development, A.T.U.S.

offers full details on its test methods to other industry

professionals on request.

1 Pascal = 10 dynes/cm

= 10 microbars = 94 dB SPL

Typical, A-weighted, using Audio Precision System One.

Specications are subject to change without notice.

40系列话筒

AT4047MP （简体中文）

多指向性电容式话筒

特性

• 专为满足专业录音、广播与扩音行业最苛刻的声音要求而设计

• 三个可切换指向性：全向、心形、8字形

• 变压器耦合输出及经过专门调整的元件可产生类似于早期录音棚F.E.T.

话筒的音效特性

• 超低自噪声、宽广的动态范围和较高的声压级性能

• 双振膜封装设计可在话筒的整个频率范围保持精确的指向性清晰度

• 高精度机加工的镀镍黄铜声学元件挡板，可提高元件的稳定性并实现达

到最优灵敏度

• 话筒及防震架上采用银灰雾面处理

• 对称的外壳组件采用开放式音响环境，能够尽可能减少不必要的内部反

射

• 专用防震架具有一流的隔震性能

• 一体式80 高通滤波器开关和Hz 10 衰减开关dB

• 最先进的设计与制造技术确保完全符合鐵三角产品严格的一致性与可靠

性标准

说明

AT4047MP是一种大振膜侧向入声型的外偏置（直流偏压）电容式话筒，

带有三个可切换指向性：全向、心形和8字形专为满足专业录音、广播与

扩音行业最苛刻的声音要求而设计

该话筒使用幻像电源。48V

全向指向性对来自所有方向的声音都具有较高的灵敏度。选用全向指向性

可在同一个话筒上对多个语音或者乐器收音，消除邻近效应，和保留现场

的环境声音。

心形指向性对元件正前方的声音更为灵敏，因此在控制反馈、抑制多余声

音和在多个表演者之间实现隔音方面非常有效。

8字形指向性对话筒前后的声音具有更高的灵敏度，可排除侧面声音。它通

常结合高级立体收音技术使用。

话筒通过一个针输出。3 XLRM

话筒配有一个可切换10 dB衰减开关和一个用于选择平坦响应或低频斜坡衰

减（通过一体式80 Hz高通滤波器）的开关。

话筒封装在一个坚固的外壳中。随附防震架具有出色的防震性AT8449/SV

能，可安装在任何采用

⅝"-27螺纹的话筒支架上。此外还提供防尘罩和便携

保护包。

操作及维护

AT4047MP 使用幻像电源。48V

输出采用低阻抗（）平衡处理。针脚和针脚用于传输信号；针脚接Lo-Z 2 3 1

地（屏蔽）。输出相位为"针脚正" 正向声压在针脚上产生正电压。2-2

为避免反相和音效不佳，所有话筒电缆都必须采用一致的接线方式：针脚1

对针脚，依此类推。1

话筒正面带有一个凸出的标记和指向性选择开关。将这一Audio-Technica

侧对准声源。

指向性选择开关可用于选择全向、心形和8字形指向性。如需选择全向指

向性，将开关推至圆形指向性图案位置。如需选择心形指向性，将开关推

至心形指向性图案位置。如需选择8字形指向性，将开关推至8字形指向性

图案位置。

一体式80 Hz 高通滤波器可在平坦频率响应与低频斜坡衰减之间轻松切

换。斜坡衰减位置可降低话筒对嘴部喷气的灵敏度。它还可减少对低平环

境噪音（例如交通、空气调节系统等等）、室内混响及机械相关振动的收

音。如需连接高通滤波器，将开关推至"曲"线图案位置。

话筒还配有一个可切换的10 衰减开关，它可降低话筒的灵敏度，因此能dB

够承受更高的声压，可广泛应用于各种用户及系统配置。如需连接10 衰dB

减开关，将开关推至位置。"-10"

在实际使用时，将电缆固定在话筒支架或吊杆上，在话筒位置预留一圈缆

线。这种做法可实现最有效的隔震效果，并可减少将话筒意外拉出支架的

可能性。

话筒不可长期暴晒或暴露于温度超过

110°F 43°C ( )的环境。此外还应避免

高湿环境。

规格

元件

外偏置（直流偏压）电容式

指向性

心形、全向、8字形

频率响应

20-18,000 Hz

低频斜坡衰减

8 频0Hz，12dB/倍

开路灵敏度

-42dB（7.9mV）以 V 于 1 1Pa

阻抗

100Ω

最大输入声级

15 kHz5 dB % 1 SPL，1 T.H.D.时为；

165 dB 0 SPL，1 ）dB衰减（标称

噪音

14 dB L SP

动态范围（典型值）

141dB，1kH 于最大声压z 级

信噪比

80dB，1kHz a 于 1P

幻像电源要求

48 DC，3. mA（典型值V 4 ）

开关

指向性选择；平滑响应/高通滤波；

10 dB ）pad（标称

重量

524 ）g（18.5盎司

尺寸

188. mm（7.40"）长0 ，

筒身最大直径53. mm（2.10"4 ）

输出接口

3针XLRM

Audio-Technica外壳类型

标配

用于

"-2 螺纹支架的AT8449/SV7 防

震架；话筒防尘罩；便携保护包

为了促进标准制定，A.T.U.S.可根据行业专业

人士的要求提供测试方法的详细信息。

1 = 10 = 10 = 4 帕米达因/平方厘微巴 9

dB L SP

典型值，A类加权（使用AudioPrecision

Syste One测试系统）m 。

规格如有变化，恕不另行通知。

心形频率响应：

20-18,000 Hz

8字形频率响应： 20-18,000 Hz

全向频率响应：

20-18,000 Hz

图例

200 Hz

1 kHz

5 kHz

8 kHz

刻度为5分贝/格

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12"或更大（在轴线上）

图例

频率（Hz）

响应（dB）

10 dB

100

200

10k

500

20k

斜坡衰减

12"或更大（在轴线上）

图例

频率（Hz）

响应（dB）

10 dB

100

200

10k

500

20k

斜坡衰减

图例

200 Hz

1 kHz

5 kHz

8 kHz

刻度为5分贝/格

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

图例

200 Hz

1 kHz

5 kHz

8 kHz

刻度为5分贝/格

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12"或更大（在轴线上）

图例

频率（Hz）

响应（dB）

10 dB

100

200

10k

500

20k

斜坡衰减

心形指向性

全向指向性

8字形指向性

Produkspesifikasjoner

Merke:	Audio-Technica
Kategori:	Mikrofon
Modell:	AT4047MP
Tilkoblingsteknologi:	Koblet med ledninger (ikke trådløs)
Mikrofonretningstype:	Kardioid/retningsbestemt mikrofon
Mikrofonholder:	Ja
Mikrofonfrekvens:	20 - 18000 Hz
Mikrofonvekt:	524 g
Garantiperiode:	5 år
Produktfarge:	Sølv
Rekomandert kjønn:	Alle kjønn
Enhetsgrensesnitt:	mini XLR (3-pin)
Modell/Type:	Scene/opptreden
Kroppsmateriale:	Brass, Nickel
Bæretaske:	Ja
Antall medfølgende produkter:	1 stykker
Mikrofonsensitivitet/mikrofonfølsomhet:	-42 dB
Inngangsimpedans mikrofon:	100 Ω
Mikrofondimensjoner (D x H):	53.4 x 188 mm
Mikrofon dynamisk omfang:	141 dB
Mikrofon Signal-to-Noise Ratio (SNR):	80 dB
Stemmespole type:	Dynamisk
Lavkuttet filter:	80 Hz