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Sabine 2.4 GHz Smart Spectrum Wireless (BETA)

8.3.3. Bass Guitar Settings

Bass players use a variety of techniques, often in the same song, that

can benefit from compression. Compressing bass evens out peaks

and keeps the bass level in the mix.

Ratio: set to 4:1

Thresh: set to compress peaks only

Attack: quick attack, medium release, hard knee; (try various re-

lease settings, depending on the speed of notes played)

Gain: output boosted slightly

8.4. Possible Compression Trouble Areas

Like any signal processing, compression can be misused, and im-

proper application may cause undesirable side effects in the audio sig-

nal. Some of these problems include:

1. Noise. If the threshold for compression is set too low, and the

output gain is raised substantially to make up for the gain loss of

compression, the resulting output signal can be noisy. This is

because the overall signal must be raised significantly to produce

the same audible level, and the noise floor of your equipment will

be amplified unnecessarily. This problem will be exaggerated if the

input signal level to the compressor is very low (which will already

degrade the signal-to-noise ratio).

2. Breathing. In situations where the compression ratio is high, the

threshold is low, and the release time of the compressor is short,

the noise floor will modulate up and down as the audio signal rises

above and falls below the threshold.

3. Over-compression. Applying too much compression to a mix

can sometimes result in such evened-out dynamics that the “life”

of the music or speech has been removed or curtailed. Dynamic

variation may be a major component of a performer’s message and

command of the audience; don’t remove dynamics, just control

them. This may be particularly true for percussive musical instru-

ments such as drums.

8.5. Release & Knee Settings

Two other important compressor variables are

release time

and

knee

Release time adjusts the speed with which compression stops and

output gain returns to unity with input gain, once the input signal falls

below the compression threshold. Knee refers to the degree with which

the full ratio of compression is imposed once the input level threshold is

approached and exceeded. A “hard knee” changes from no compres-

sion to maximum compression exactly and immediately at the thresh-

old crossing; a “soft knee” gradually imposes the full compression ratio

as the input gain approaches and exceeds the threshold. In Sabine

products, the “softness” of a knee can vary from 1-40, with the higher

level representing the “softest” character. In such a setting, slight com-

pression will begin well below the compression threshold, increase as

the input gain crosses the threshold, and reach full compression well

above the nominal threshold.

Values for release time and knee are set at the factory: default release

time is 400 mSec, and the default knee setting is a “soft” setting of 20.

These defaults can be temporarily changed or reprogrammed using the

Sabine True Mobility

Remote Software (see Section 13 for details).

Compressor Limiter

Summary of content (8 pages)

PAGE 1
Compressor Limiter 8.3.3. Bass Guitar Settings Bass players use a variety of techniques, often in the same song, that can benefit from compression. Compressing bass evens out peaks and keeps the bass level in the mix. Ratio: set to 4:1 Thresh: set to compress peaks only Attack: quick attack, medium release, hard knee; (try various release settings, depending on the speed of notes played) Gain: output boosted slightly 8.4.
PAGE 2
De-esser 9. DE-ESSER 9.1. De-mystifying De-essers Certain consonant sounds produced by the human voice contain more energy than others, and have the potential to overload a microphone capsule. This can produce a disproportionately harsh result when amplified through a sound system, and/or recorded to analog or digital storage media.
PAGE 3
Program Save & Recall 10 PROGRAM SAVE & RECALL Most wireless microphone systems provide control of one or two settings (RF channel and maybe gain). With so little to remember, the ability to save and recall system settings has not been necessary. With the Sabine SWM7000 series, however, you get a very sophisticated processor with a variety of adjustable parameters. The ability to save and recall your carefully programmed setups can be a tremendous time-saver.
PAGE 4
Multiple Systems Operation 11. MULTIPLE SYSTEMS OPERATION 11.1. Overview In many circumstances a single wireless microphone system is all that will be in use at any one time. Larger applications (church, concert hall, theater stage, conference room, etc), however, can often require a large array of wireless microphones, all demanding flawless uninterrupted simultaneous operation.
PAGE 5
Multiple Systems Operation 3. Third, large installations often entail long distances from transmitters to receivers, or the presence of obstacles (walls, for example) in the transmission path that can interfere with clear reception. While the SWM7000 series is designed to minimize these kinds of problems without accessories, the SWASS-EXT (set of two extension antennas, shown in figure 12b on next page) may prove helpful or even necessary in some situations.
PAGE 6
Multiple Systems Operation Antenna Distributor to a better position, and risking excessive transmission loss back to the receivers or requiring an upgrade to more expensive cable, is to utilize a pair of Sabine Extension Antennas (SWASS-EXT Kit). These will connect to the antenna inputs of the Antenna Distributor, and offer increased range; better rear-source RF rejection; an expanded 180 degree forward sensitivity; flexible mounting options; and signal boost (see Section 12).
PAGE 7
Extension Antennas 12. EXTENSION ANTENNAS Sabine’s SWM7000 series receivers are designed for easy interface with Sabine’s SWA-SSEXT Extension Antenna Kit (figure 12b). This triangular, attractive wood-grained unit is designed to mount easily and unobtrusively on a wall (allowing either a through-the-wall or out-thebottom connection), or (by threading) atop a microphone stand for a more portable or temporary positioning.
PAGE 8
Extension Antennas sensitive to RF reception in a 180-degree arc in front of its mounted position. It extends sensitivity to the front and off-axis side locations as it increases rear RF rejection. The multiple functions (relocation of antenna, boost of signal, directional sensitivity) of Sabine’s Extension Antenna mean there are many applications in which its addition to your system can greatly enhance performance. Here’s a short list of such applications: 1. Antenna repositioning.