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SETUP MENU OPTIONS
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channel trim and compensate for speaker sensitivity differences. However, if your receiver does not
have such functions (many receivers do not support channel trim for their multi-channel analog
inputs), you may adjust channel trim through the player. For most accurate results, it is
recommended that you use test tones from a calibration disc, such as Digital Video Essentials HD
Basics, and a SPL (Sound Pressure Level) meter. The trim level can be set to +/- 10dB in 0.5dB
increments.
NOTE
Increasing the Trim Level above 0dB may result in distortion if the original audio level is
already high. When this occurs the waveform becomes clipped and audible distortion
can be heard. In this situation, it is necessary to reduce the Trim Level until the
distortion is removed. When using the Trim Level to balance speakers, it is
recommended that you set the least sensitive speaker’s Trim Level to 0dB, and set other
speakers’ Trim Level to negative values.
Starting from the firmware version BDP9x-52-0707 (released on July 13, 2011), the “Test
Tone” can be used in conjunction with the player’s trim control. Each speaker can be set
to independent trim levels and there is no linked pair limitation.
Other Audio Processing Settings
In addition to Speaker Configuration, Crossover Frequency and Dynamic Range Control are audio
processing settings that can be configured:
1. Crossover: To set the Bass Management kick-in frequency for all speakers. When the speaker
size is set to “Small” in “Speaker Configuration” (see page 71), bass information below this
frequency are not passed to the speakers to reduce possible distortion, and if the subwoofer is
available, bass information will be redirected to the subwoofer. The available options are:
40Hz / 60Hz / 80Hz / 90Hz / 100Hz / 110Hz / 120Hz / 150Hz / 200Hz / 250Hz – These are
the available crossover frequencies. You can press the UP/DOWN ARROW buttons and
the ENTER buttons to select it. This option applies to all speakers (center, front, surround,
and surround back speakers). By default the crossover frequency is 80Hz.
2. Dynamic Range Control: To set the Dynamic Range Compression (DRC). DRC can smooth out
the sonic peaks and valleys common with wide-range digital audio. Enabling DRC may make low
level audio more audible during low-level listening. Turning off DRC restores the sonic energy
present in the original recording. The available options are:
Auto – Play at the dynamic range specified by the disc. This option applies to Blu-ray
Discs only. For other disc types no dynamic range compression is applied.
On – Turn on dynamic range compression.
Off – Turn off dynamic range compression.
NOTE
The Dynamic Range Compression is applied on the analog audio output, it also works on the
digital audio output (HDMI, Coaxial and Optical) when the audio format is set to PCM.