Parametric equalizer information
This unit employs Yamaha Parametric Room Acoustic Optimizer (YPAO) technology, together with the Parametric EQ settings (see page 87), to optimize the frequency characteristics of its parametric equalizer to match your listening environment. YPAO uses a combination of the following three parameters (Frequency, Gain and Q factor) to provide highly precise adjustment of the frequency characteristics.
■Frequency
This parameter is adjustable in
YPAO adjusts frequency characteristics to suit your listening requirements using a combination of the above three parameters (Frequency, Gain and Q factor) for each equalizer band in this unit’s parametric equalizer. This unit has 7 equalizer bands for each channel.
The use of multiple equalizer bands enables more precise adjustments of frequency characteristics (as in Figure 2). This is not possible using only a single equalizer band (as in Figure 1).
Figure 1
Gain
Frequency characteristic after
correction
Band 1
Frequency
■Gain
This parameter is adjustable in increments of 0.5 dB between
■Q factor
The width of the specified frequency band is referred to as the Q factor. This parameter is adjustable between the values 0.5 and 10.
Original frequency characteristic
Figure 2
| Gain |
Frequency |
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characteristic after |
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correction | Band 1 |
| Frequency |
| Original frequency |
Band 2 | characteristic |
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■Standing wave
A wave generated when two waves of the same length, frequency and speed but traveling in opposite directions overlap. Standing waves appear to be stationary and simply oscillating in a fixed position without progressing.
Under certain conditions, the sound leaving a speaker and the sound reflecting off a wall, etc., in a room resonate. When this happens, it has a major effect on the frequency response in the room, and depending on the listening position sounds of specific frequencies may sound loud or inversely may be hard to hear. As a result, this hampers accurate reproduction of the sound source.
This unit is equipped with a parametric equalizer to reduce the effect of standing waves. The equalizer’s settings can be optimized through automatic measurements. Even more accurate settings can be made by taking measurements at other positions.
Information | Additional |
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