14
TUBE ULTRA-Q T1951
Center frequency (Hz)
1/3 octave
Effects on voice
40 to 125
Sense of power in some outstanding bass singers.
160 to 250
Voice fundamentals.
315 to 500
Important for voice quality.
630 to 1k
Important for voice naturalness. Too much boost in the 315 to 1 kHz
range produces a telephone-like quality.
1.25k to 4k
Voice
fricatives-accentuation
of
vocals.
Important
to
speech
intelligibility. Too much boost between 2 and 4 kHz can mask certain
speech sounds e.g. "m", "b", and "v" can become indistinguishable.
Too much boost anywhere between 1 and 4 kHz can produce
"listening fatigue". Vocals can be highlighted by slightly boosting the
vocal at 3 kHz and at the same time slightly dipping the instruments
at the same frequency.
5k to 8k
Accentuation of voice. The range from 1.25 to 8 kHz governs the
clarity of voice.
10k to 16k
Too much boost causes sibilance.
Tab. 3.2: Effects of equalization on voice reproduction
+
Use the SHELF function to create a small lift in the upper frequencies, this is especially useful
when using analog tape. Trying to recover lost brilliance is always tricky because you boost
hiss as well. It is better to record bright, you can always mix back the brilliance.
3.4 The TUBE ULTRA-Q as tube interface
If you want to use the TUBE ULTRA-Q purely as tube interface switch off all filters with their respective IN/OUT
switches but keep the master IN/OUT switch engaged.
Now you can add upper harmonics by turning up the WARMTH control. Percussive instruments gain in punch
while instruments that are rich in harmonics like horns gain transparency and brilliance.
Connect your TUBE ULTRA-Q via the channel or subgroup inserts of your mixer. This way you can add tube
sound to selected instruments or groups of instruments. The TUBE ULTRA-Q is also very adapt to processing
the entire mix. You can of course combine the tube and parametric equalizer functions of the TUBE ULTRA-Q.
3.5 EQ-ing a P.A. system
Parametric equalizers can also be combined with conventional graphic equalizers. The application of both is
conceivable in a P.A. system: the graphic equalizer can be used for broad-band corrections of the frequency
response, for example, to simulate a tone control circuit, to adjust the sound of specific speaker systems or to
enhance the low-range response and/or to make up for high-frequency loss caused by room acoustics. The
TUBE ULTRA-Q can then be used for the detailed correction and the notching out of resonances.
Before you insert an equalizer in your sound reinforcement system, you should clearly define its tasks. If you
fail to set up the EQ properly, it might deteriorate the sound image more than if you used no sound-processing
device at all.
In a sound reinforcement system equalizers are used in three major areas of application:
1.
Reducing the risk of feedback, while increasing the overall volume level.
2.
Improving the natural sound of music.
3.
Improving the intelligibility of speech.
3. APPLICATIONS
All manuals and user guides at all-guides.com
