Manual Behringer SNR2000

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  • Behringer SNR2000 - page 1

    DENOISER ® SNR2000 Version 2.3 J u n e 2 0 0 2 Users Manual www.behringer.com ENGLISH ...

  • Behringer SNR2000 - page 2

    2 DENOISER SNR2000 This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure  voltage that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Read the manual. SAFE ...

  • Behringer SNR2000 - page 3

    3 DENOISER SNR2000 FOREWORD Dear Customer, Welcome to the team of DENOISER users and thank you very much for expressing your confidence in BEHRINGER products by purchasing the SNR2000. It is one of my most pleasant tasks to write this letter to you, because it is the culmination of many months of hard work delivered by our engineering team to reach ...

  • Behringer SNR2000 - page 4

    4 DENOISER SNR2000 SNR2000 DENOISER ® Professional and all-purpose single-ended noise reduction system s TAC (Transient Attack Control) dynamic filters respond accurately to signals with fast attacks s Auto-filter circuitry for automatic sliding filters s IRC (Interactive Ratio Control) downward expander for inaudible noise reduction during ...

  • Behringer SNR2000 - page 5

    5 DENOISER SNR2000 T ABLE OF CONTENTS 1 . INTRODUCTION . . ................................................................................................................... 6 1. 1 The design concept .......................................................................................................... ............... 6 1. 2 Before you begin .. ...

  • Behringer SNR2000 - page 6

    6 DENOISER SNR2000 1 . INTRODUCTION Thank you very much for expressing your confidence in BEHRINGER products by purchasing the BEHRINGER DENOISER SNR2000. Electrical noise is still one of the most unpleasant problems in the field of electro-acoustics. The basic noise produced by a single unit is not considered to be annoying. The combination of sev ...

  • Behringer SNR2000 - page 7

    7 DENOISER SNR2000 1. 2 Before you begin Your DENOISER was carefully packed in the factory and the packaging is designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred during transit. + If the unit is damaged, ple ...

  • Behringer SNR2000 - page 8

    8 DENOISER SNR2000 1.3 .1 Front panel Fig. 1.2: Front panel control elements 1 The IN/OUT switch activates the relay and, consequently, the corresponding channel. The unit is bypassed when the switch is not depressed. 2 By depressing the COUPLE switch you will tie channel 1 and 2 together for stereo tracking. + If using the COUPLE switch, it is rec ...

  • Behringer SNR2000 - page 9

    9 DENOISER SNR2000 15 FUSE HOLDER / VOLTAGE SELECTOR . Please make sure that your local voltage matches the voltage indicated on the unit, before you attempt to connect and operate the DENOISER. Blown fuses may only be replaced by fuses of the same type and rating. Some models allow for inserting the fuse holder in two different positions, in order ...

  • Behringer SNR2000 - page 10

    10 DENOISER SNR2000 Fig. 2.1: Operation of the dynamic filter With a low-frequency input signal present, the dynamic filter will reduce any mid or high-band noise as well as any disturbing noise tails. If the input signal is dominated by high-frequency components, however, the dynamic filter will open to its full extent to let the signal pass, main ...

  • Behringer SNR2000 - page 11

    11 DENOISER SNR2000 Fig. 2.2: Comparing the BEHRINGER T AC filter circuitry and the conventional RMS characteristic curve 2.2.1 SENSITIVITY control This control determines the sensitivity of the filter. If the input level exceeds the value adjusted with the SENSITIVITY control, the dynamic filter begins to open. If the adjusted value is, for exampl ...

  • Behringer SNR2000 - page 12

    12 DENOISER SNR2000 2.2.4 AUTO switch The AUTO switch allows to automatically control release time and cut off frequency of the TAC filter. Thus, by depressing the AUTO switch, the RELEASE and CUT OFF controls are deactivated. Release time and cut off frequency of the filter are now automatically derived from the input signal. Generally, good resul ...

  • Behringer SNR2000 - page 13

    13 DENOISER SNR2000 Fig. 2.3: The function of an expander 2. 4 The IRC expander of the DENOISER The response characteristics of conventional expanders tend to cut the signal abruptly and the result is generally unacceptable, since the effect is clearly audible. Inaudible expansion, however, requires a gentle Soft Knee characteristic due ...

  • Behringer SNR2000 - page 14

    14 DENOISER SNR2000 2.4 .1 THRESHOLD control The THRESHOLD control of the expander defines the operating level. It stretches across a very wide range and therefore applies to all working levels. Input levels above the adjusted threshold point do not experience any change. However, if the level falls below the threshold the dynamic process is active ...

  • Behringer SNR2000 - page 15

    15 DENOISER SNR2000 2. 5 The COUPLE function The couple switch links channel 1 and channel 2. This includes each channels expander detection and filter detection circuits. Although this allows the two channels to track each other for stereo applications, it should be pointed out that this is not a master/slave setup, but rather a link and for tr ...

  • Behringer SNR2000 - page 16

    16 DENOISER SNR2000 We recommend the following control settings: Controls Settings IN/OUT s witch IN EXPANDER sw itch IN THRESHOLD c ontrol -50 dBu RELEASE control 2 second s RATIO c ontrol 3:1 FILTER sw itch IN SENSITIVIT Y switch -30 dBu AUTO swi tch IN T ab. 3.2: Initial settings of the DENOISER 3. 2 Studio applications 3.2 .1 Noise reduction du ...

  • Behringer SNR2000 - page 17

    17 DENOISER SNR2000 Fig. 3.2: Noise reduction during recording If the mixer features a line level insert (either pre or post equalizer), the DENOISER should be inserted here. Fig. 3.3: Noise reduction using the line insert 3.2. 3 Reducing noise on subgroups, monitor and effects buses For this application there are several options: 1. If ...

  • Behringer SNR2000 - page 18

    18 DENOISER SNR2000 Fig. 3.4 : Noise reduction in the effects bus 3.2 .4 Noise reduction for effects devices Effects devices such as flangers, phasers, distortion or chorus units, delay and reverb devices, compressors, equalizers, exciters, etc. can considerably increase the overall noise level. The DENOISER will also be useful here. Simply insert ...

  • Behringer SNR2000 - page 19

    19 DENOISER SNR2000 Fig. 3.6: Noise reduction on keyboards + Please note that low level signal sources such as guitars must be pre-amplified beforehand, as the BEHRINGER DENOISER only processes line level signals (-10 dBV to +10 dBu). 3.2 .7 Reducing noise in P.A. systems The noise produced by P.A. systems is particularly annoying. Hum induced in t ...

  • Behringer SNR2000 - page 20

    20 DENOISER SNR2000 Fig. 3.8: Noise reduction in Hi-Fi systems The BEHRINGER DENOISER can be used for: s disc and tape recordings s video and audio cassette playback purposes s TV reception s radio reception 4. TECHNICAL BACKGROUND 4. 1 What are audio dynamics? A remarkable feature of the human ear is that it can detect the widest range of amplitud ...

  • Behringer SNR2000 - page 21

    21 DENOISER SNR2000 The usable dynamic range of electro-acoustic equipment is limited to both the low end and the high end. The thermal noise of the electrons in the components results in an audible basic noise floor and thus represents the bottom limit of the transmission range. The upper limit is determined by the levels of the internal operating ...

  • Behringer SNR2000 - page 22

    22 DENOISER SNR2000 The noise gate is the simplest form of an expander: in contrast to the expander, which continuously attenuates a signal below the threshold, the noise gate cuts off the signal abruptly. In most applications this method is not very useful, since the on/off transition is too drastic. The onset of a simple gate function appears ver ...

  • Behringer SNR2000 - page 23

    23 DENOISER SNR2000 4. 7 The single-ended principle In contrast to conventional noise reduction systems using compressors and expanders, the DENOISER is purely a single-ended system. Single-ended means that the noise reduction system is not based on a process combining both record and playback (encoding and decoding), but is simpl ...

  • Behringer SNR2000 - page 24

    24 DENOISER SNR2000 Fig. 5.1: Different plug types 6. SPECIFICATIONS Analog inputs Connectors XLR and 1/4" TRS Type R F filtered, servo balanced input Impedance 80 kO h ms balanced Nominal operating level -10 dBV to +4 dBu (switchable) Max. input level +20dBu bal anced and unbalanced Analog outputs Connectors XLR and 1/4" TRS Type Elec ...

  • Behringer SNR2000 - page 25

    25 DENOISER SNR2000 6 . SPECIFICATIONS System specifications Bandwidth 5 H z t o 100 kHz, +0/-3dB No i se > 104dBu, fully off T H D 0.02% typ. @ +4dBu, 1 kHz, Gain 1 Crosstal k < -85dBu Expander section Threshold v ariable (-40 to +20 dBu) Release v ariable (0.05 to 6 seconds) Ratio va ria ble (1: 1 to 1: 6) Filter section Sensiti ...

  • Behringer SNR2000 - page 26

    26 DENOISER SNR2000 7 . WARRANTY 7. WARRANTY § 1 WARRANTY CARD/ONLINE REGISTRATION To be protected by the extended warranty, the buyer must complete and return the enclosed warranty card within 14 days of the date of purchase to BEHRINGER Spezielle Studiotechnik GmbH, in accordance with the conditions stipulated in § 3. Failure to return the card ...

Manufacturer Behringer Category Noise Reduction Machine

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Behringer SNR2000 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Behringer SNR2000.

A complete Behringer manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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