Pioneer 2016 Manual page 4

Audio Technologies
MCACC Auto Room Tuning
1131 831 531
Create the optimum acoustic environment with
Pioneer's MCACC (Multi-Channel Acoustic
Calibration System), developed with the
expertise of professional recording studios. The system—
complete with custom microphone—automatically compensates
for differences in speaker size, level and distance, and equalises
response.
Phase Control
1131 831 531
When amplifying multi-channel audio signals,
receivers use a Low Pass Filter (LPF) to process
low-frequency signals for subwoofer output. This
causes "phase lag"—a delay of approximately 5
msec—of the low-frequency signals compared to the main
channel signals. As a result, the delayed bass makes the
sound lack synchronisation. Pioneer's Phase Control
technology effectively eliminates phase lag and significantly
improves the multi-channel sound without any extra
operation.
Subwoofer EQ
1131 831
This EQ feature allows you to adjust the LFE tone. As with
other EQ, the manual adjustment can be done on the AV
receiver's GUI.
Bass Management System for Dolby-Enabled Speakers
1131
When using Dolby-enabled speakers, the low-frequency
components are usually all redirected to the subwoofer.
Since this will include frequencies featuring directivity, the
resulting sound lacks a seamless feel. MCACC redirects the
low frequency component with directionality to the floor
speaker below the Dolby-enabled speaker element, and the
lower frequency components to the subwoofer. This optimal
signal distribution creates superior sound localisation,
maximising the advantage of Dolby Atmos content.
Pioneer
80 Hz 180 Hz
Deep Bass Mid-High
Dolby-enabled
Bass
speaker sound
component
3 Parts
Previous Models
20 Hz 20 kHz
150 Hz
Bass
Mid-High
Deep Bass
2 Parts
Speaker distance, sound pressure level, and
frequency response are all uneven.
The "Phase Control" Compensates for the Delay of Low-Frequency Sound
With Traditional Bass Management System
No horizontal sound localisation
Mid-High
Bass
Deep
Bass Subwoofer
With New Bass Management System for
Dolby-Enabled Speakers
Horizontal sound localisation achieved
Mid-High
Bass
Subwoofer
Deep Bass
4
AV RECEIVERS REFERENCE GUIDE
Acoustic Calibration by MCACC
Before Calibration
The sound field is automatically
measured using the supplied mic.
SET-UP
MIC Calibration
Speaker sizes and number of
speakers are automatically detected.
Source AV Receiver
PHASE CONTROL
Auditory sound
image
After Calibration
Speaker distance, sound pressure level, and
frequency response are all equalised.
SET-UP
MIC
Speakers
Ideal sound image
Ideal sound image =
Auditory sound image