Jensen VM9021TS instruction manual Audio Menu, SPK Config Menu, Surround Sound

VM9021TS

AUDIO Menu

The VM9021TS has a built-in Pink Noise generator to help set the relative speaker levels for multi-channel audio playback.

Table 15: AUDIO Menu Features

Setting	Options	Function
Pink	Off	Stop output of pink noise
Noise
	Left	Left channel pink noise
	Center	Center channel pink noise
	Right	Right channel pink noise
	Left Surr	Left surround channel pink noise
	Right Surr	Right surround channel pink noise
	Subwoofer	Subwoofer pink noise
DRC	Off	Employ the Dynamic Range Control for
		better playback for low volumes.
	On
CNTR	5ms	Adjust the time difference between the
CTRL		center and front speakers to create a
	4ms
		time delay between 1 and 5 millisec-
	3ms	onds, producing a more accurate audio
		effect.
	2ms
	1ms
	0ms
REAR	15ms	Adjust the time difference between the
CTRL		rear and front speakers to create a
	12ms
		time delay between 3 and 15 millisec-
	9ms	onds, producing a more accurate audio
		effect.
	6ms
	3ms
	0ms
Down	Off	Normal Output
Sampling
	on	Audio signal output at 48kHz
BACK		Return to previous menu.

NOTE: When Down Sampling is ON, the audio output signal will be converted to 48kHz. When Down Sampling is OFF, the original sampling frequency is preserved.

SPK CONFIG Menu

To change speaker settings for 2-channel mode, use the >> or << buttons (14, 22) on the remote control or the /\ or V buttons (6, 7) on the joystick to select “DownMix”. To change speaker settings for 6-channel mode, select “Full 6CH”. After selecting 2 or 6-channel mode, use the >> button (19) on remote control or the > button on the joystick (9) to move to the speaker settings on the right.

Speaker Selection

Selecting LARGE for the multi-channel speaker option will give a full range output. Selecting SMALL for the multi- channel speaker option will activate a high pass filter whose crossover is dependent upon the sub-woofer low pass filter frequency. For example, if the subwoofer low pass filter is set to 80Hz, then the high pass SMALL speaker crossover will be set to 90Hz.

Low pass	High pass
80Hz	90Hz
120Hz	135Hz
160Hz	180Hz

Refer to Table 16 when selecting speaker options for each mode.

Table 16: SPK CONFIG Menu Features

Setting	Options	Function
FL (Front Left) /	Large	Use when front speakers have
FR (Front Right)		good bass output.
	Small	Use when speakers do not have
		good bass output.

Table 16: SPK CONFIG Menu Features

Setting	Options	Function
LR (Left Rear) /	Large	Use when rear speakers have
RR (Right Rear)		good bass output.
	Small	Use when rear speakers do not
		have good bass output.
	None	Use when rear speakers are not
		present.
SUB (Subwoofer)	Present	Use when subwoofer is present.
	None	Use when subwoofer is not
		present.
CTR (Center)	Large	Use when center speaker has
		good bass output.
	Small	Use when center speaker does
		not have good bass output.
	None	Use when center speaker is not
		present.
BACK		Return to previous menu.

Surround Sound

Dolby Digital

Dolby Digital is the reigning standard for surround sound technology in general and 5.1-channel surround sound in particular.

Dolby Digital is a highly sophisticated and versatile audio encoding/decoding technology. Dolby Digital technology can transmit mono, stereo (two-channel), or up to 5.1-channel surround sound.

Pro-Logic II

Pro-Logic II is a dramatically improved matrix surround system based on the original Dolby Pro Logic system. Pro- Logic II offers two full-range stereo surround channels, more sophisticated steering logic, high channel separation and an exceptionally stable sound field. Dolby Pro-Logic II uses simple servo circuits used to derive the five audio channels. Unlike other "Surround Effects" found in other consumer equipment, Dolby Pro-Logic II does not introduce unwanted delays, echoes, reverberations or tonal colorations.

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