Pioneer VSX-919AH-S 用户手册

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• Default setting: ON

1

/ATT 0.0dB (all filters)

Acoustic standing waves occur when, under 
certain conditions, sound waves from your 
speaker system resonate mutually with sound 
waves reflected off the walls in your listening 
area. This can have a negative effect on the 
overall sound, especially at certain lower 
frequencies. Depending on speaker placement, 
your listening position, and ultimately the 
shape of your room, it results in an overly 
resonant (‘boomy’) sound. The Standing Wave 
Control uses filters to reduce the effect of overly 
resonant sounds in your listening area. During 
playback of a source, you can customize the 
filters used for Standing Wave Control for each 
of your MCACC presets.

2

• Filter Channel – Select the channel to 

which you will apply the filter(s): MAIN (all 
except center channel and subwoofer), 
Center or SW (subwoofer).

• TRIM (only available when the filter channel 

above is SW) – Adjust the subwoofer 
channel level (to compensate for the 
difference in output post-filter).

• Freq / Q / ATT – These are the filter 

parameters where Freq represents the 
frequency you will be targeting and Q is the 
bandwidth (the higher the Q, the narrower 
the bandwidth, or range) of the attenuation 
(ATT, the amount of reduction to the 
targeted frequency).

You will return to the Manual MCACC setup 
menu.

• Default  setting:  ON

3

/0.0dB (all channels/

bands)

Acoustic Calibration Equalization is a kind of 
room equalizer for your speakers (excluding 
the subwoofer). It works by measuring the 
acoustic characteristics of your room and 
neutralizing the ambient characteristics that 
can color the original source material 
(providing a ‘flat’ equalization setting). If you’re 
not satisfied with the adjustment provided in 
Automatically setting up for surround sound 
(Auto MCACC) on page 37 or Automatic 
MCACC (Expert) on page 77, you can also 
adjust these settings manually to get a 
frequency balance that suits your tastes.

1 You can switch on or off the Standing Wave and Acoustic Calibration EQ feature in the AUDIO PARAMETER menu. 

See Setting the Audio options on page 63 for more on this.

2 • Since they will be overwritten, you may want to save the standing wave settings made with the Auto MCACC Setup 

to another MCACC preset.
• Standing Wave control filter settings cannot be changed during playback of sources using the HDMI connection.
• When Standing Wave is selected for an MCACC preset memory where STAND.WAVE is set to OFF in the AUDIO 
PARAMETER, STAND.WAVE ON is automatically selected.

3 When EQ Adjust is selected for an MCACC preset memory where EQ is set to OFF in the AUDIO PARAMETER, EQ 

ON is automatically selected.

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