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YARIS SEDAN_OM_OM99S50z_(U)
265
4-2. Audio System
4
Interior Features
● Multipath noise
Since FM signals can be reflected by obstructions, it is possible
to receive both the direct signal and the reflected signal at the
same time. This causes a slight delay in reception and may be
heard as a broken sound or a distortion. This problem may also
be encountered when in close proximity to the transmitter.
Direct
Reflected wave
● Flutter/Skip noise
Signals from an FM transmit-
ter move in straight lines and
become weak in valleys
between tall buildings, moun-
tains, and other obstacles.
When a vehicle passes
through such an area, the
reception conditions may
change suddenly, resulting in
annoying noise.
● Weak signal noise
In suburban areas, broadcast
signals become weak
because of distance from the
transmitter. Reception in
such fringe areas is charac-
terized by sound breakup.
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2
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