Neumannberlin TLM 103 D User Manual download pdf (Page 5)

well as the two-channel Digital Microphone Inter-

face (DMI-2) with the accompanying RCS control

software for remote controlling all microphone

characteristics (see also the “Technical data” sec-

tion).

The consumption of power results in slight warm-

ing of the microphone, which increases with

shorter cable lengths and higher sampling rates.

4. Setup

Mounting the microphone

Attach the microphone to a stable, sturdy stand.

Use an elastic suspension, if necessary, for the

mechanical suppression of structure-borne noise.

For this purpose set the microphone into the inner

cage from above, and secure it to the inner cage

with the threaded nut. If required, use a wind-

screen or popscreen from our range of accesso-

ries in order to suppress wind or pop noise.

Connecting the microphone

Caution: An incorrect supply voltage can dama-

ge the microphone!

Connect the microphone to microphone inputs

and to equipment which supplies phantom pow-

er in accordance with AES 42. See also chapter

“Safety Instructions”.

Caution: Very high signal levels can damage

loudspeakers and your hearing!

Reduce the volume of connected playback equip-

ment before connecting the microphone. This is

also advisable in order to avoid acoustic feed-

back.

Connect the microphone by means of an XLR cable

to the AES 42 microphone input of the DMI-2 Digi-

tal Microphone Interface, to the Neumann con-

nection kit or to other audio equipment along to

AES 42 standard.

Concerning the connection of DMI-2 and Connec-

tion Kits with your audio device please consult

the respective operating manuals.

With a correct power supply, a blue LED on the mi-

crophone indicates that the microphone is ready

to operate. When the microphone is switched

on, the LED at ﬁ rst glows dimly, and after a short

time shines with the preset brightness. When the

DMI-2 Digital Microphone Interface is used, the

LED can be set to four di erent brightness levels

and switched o by means of the Remote Control

Software.

When connecting the cables, ensure that the con-

nectors are locked correctly.

Address the microphone from the side on which

the Neumann logo is located.

Gradually increase the volume of the connected

equipment.

Long cables and multiple connectors lead to dete-

rioration in jitter behavior, particularly in the case

of high sampling rates. Therefore, to the greatest

extent possible, use continuous cable between

the microphone and subsequent equipment, and

for longer distances use AES/EBU cable exclusive-

ly (with an impedance level of 110 ohms).

Ensure that the microphone and all equipment in

the digital signal chain are synchronized. If the

Neumann Digital Microphone Interface is used,

the connected microphones should always be

operated in synchronous mode, whether or not

sample rate converters are used in the subse-

quent signal chain. This will ensure very e ective

jitter suppression in the DMI (as of hardware ver-

sion 3). The output of two microphone signals in

an AES 3 stereo signal is also possible only if the

microphones are synchronized with one another.

Sound test

Simply speak into the microphone. Do not blow

into the microphone or subject it to pop noise,

since this can easily result in hazardous sound

pressure levels.

Parameters which can be remote controlled

via the AES 42 interface

Low Cut: Acccording to AES42 there are four set-

tings for the low cut: o , 40 Hz, 80 Hz and 160 Hz.

Pre-attenuation: Pre-attenuation is achieved by

reducing the capsule voltage. If pre-attenuation is

activated, the dynamic range is shifted by the cor-

responding value to higher sound pressure levels.

Gain: Gain is carried out exclusively in the digital

domain, thus avoiding the additional noise and

possible e ects on the sound which can occur in

analog processing.

Peak limiter: The very fast peak limiter has an ad-

justable threshold, and prevents overloading or

clipping of the audio signal in the signal path.

Compressor/Limiter: A compressor/limiter with

completely adjustable parameters is provided.

It can function in broad band mode, or as a high-

frequency compressor/limiter (de-esser) in one of

three selectable frequency ranges. All important

parameters are adjustable.

In addition, the sampling rate, the synchroniza-

tion mode, test signals, mute, the polarity of the

output signal and the LED can be controlled re-

motely.

The software in the microphone can be updated

via the Neumann DMI-2. Therefore future soft-

ware enhancements will also be available to ex-

isting customers. Please refer to the RCS manual

for details concerning the update process.

Suppressing noise interference

The frequency response of the TLM 103 D extends

below 20 Hz. The microphone is of course corre-

spondingly sensitive to low-frequency interfer-

ence such as structure-borne noise and wind or

pop noise. Depending upon the situation, the use

of an elastic suspension, a windscreen and/or a

popscreen is therefore recommended.

5. Shutdown and Storage

Before switching o the microphone or discon-

necting the cables, reduce the volume of con-

nected equipment.

When disconnecting a cable, always pull only on

the connector and not on the cable itself.

Microphones which are unused for prolonged

periods should be stored under normal ambient

atmospheric conditions, and should be protected

from dust. For this purpose, use a lint-free, air-

permeable dust cover or the original packaging of

the microphone.

6. Technical data

Permissible atmospheric conditions

Operating temperature range .......... 0 °C to +40 °C

Storage temperature range ...........–20 °C to +70 °C

Humidity range .....................0 % to 99 % at +20 °C

0 % … 95 % at +60 °C

Acoustical op. principle .............Pressure gradient

transducer

Directional

pattern ........................................................ Card i o i d

Frequency range ............................ 20 Hz to 20 kHz

Sensitivity

..............................................–39 dBFS

Equivalent noise level,

CCIR

............................................................17.5 dB

Equivalent noise level,

A-weighted

.................................................. 7 dB-A

Signal-to-noise ratio

CCIR

........................................................... 76.5 dB

Signal-to-noise ratio

A-weighted

................................................... 87 dB

Maximum SPL

at 0 dBFS

............................................. 134 dBSPL

Dynamic range

including capsule

....................................... 127 dB

A/D conversion ...........................Neumann process

(patented), 28-bit

internal word length

Digital signal processing ..... Fixed-point, variable

internal word length

28 bits to 60 bits

Sampling rates .................................44.1/48/88.2/

96/176.4/192 kHz

Output data format ............................ 24 bits as per

AES/EBU (AES 3)

Sampling rates .................................44.1/48/88.2/

96/176.4/192 kHz

Latency:

44.1/48 kHz ...........................................52 samples

88.2/96 kHz ...........................................61 samples

176.4/192 kHz ...................................... 121 samples

At 0 dB pre-attenuation and 0 dB gain.

All values are for non-condensing moisture.

at 1 kHz, and 94 db SPL

re 94 dB SPL

according to IEC 60268-1;

CCIR-weighting acccording to CCIR 468-3, quasi peak;

A-weighting according to IEC 61672-1, RMS

1 2 3 4 5 6 7 8 9

Comments to this Manuals

No comments

Neumannberlin TLM 103 D User Manual Page 5

Comments to this Manuals

Related products and manuals for Microphones Neumannberlin TLM 103 D