Yamaha DVR-S150 Manuel D’Utilisation

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Since the Dolby Surround and DTS systems were 
originally designed for use in movie theaters, their effect 
is best felt in a theater having many speakers and designed 
for acoustic effects. Since home conditions, such as room 
size, wall material, number of speakers, and so on, can 
differ so widely, it’s inevitable that there are differences in 
the sound heard as well. Based on a wealth of actually 
measured data, YAMAHA CINEMA DSP uses 
YAMAHA original sound field technology to combine 
Dolby Pro Logic, Dolby Digital and DTS systems to 
provide the visual and audio experience of movie theater 
in the listening room of your own home.

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“SILENT CINEMA” was developed by YAMAHA as a 
natural, realistic sound effect DSP algorithm for 
headphones.
Parameters for headphones have been set for each sound 
field so that accurate representations of all the sound field 
programs can be enjoyed on headphones.

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YAMAHA has developed a Virtual CINEMA DSP 
algorithm that allows you to enjoy DSP sound field 
surround effects even without any surround speakers by 
using virtual surround speakers.
It is even possible to enjoy Virtual CINEMA DSP using a 
minimal two-speaker system that does not include a center 
speaker.

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A signal that is compressed and changed into digital 
format. Then depending on the decoder it can be 
processed as 5.1 multi-channel audio.

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A channel is an audio type that has been divided based on 
range and other characteristics. 
Ex. 5.1 channel
• Front speakers, Left (1ch), Right (1ch)
• Center speaker (1 ch)
• Surround speakers, Left (1ch), Right (1ch)
• Subwoofer (1 ch x 0.1

*

 = 0.1 ch)

* In contrast to a full 1-channel band, a component designed to 

enhance low frequency sound for added effect.

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The difference between the smallest sound that can be 
heard above the equipment noise and the biggest sound 
that can be heard without distortion is the dynamic range.

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This channel is for the reproduction of low bass signals. 
The frequency range for this channel is 20 Hz to 120 Hz. 
This channel is counted as 0.1 because it only enforces a 
low frequency range compared to the full-range 
reproduced by the other 5/6 channels in Dolby Digital or 
DTS 5.1/6.1-channel systems.

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When converting an analog signal to digital, the number of 
times the signal is sampled per second is called the 
sampling frequency, while the degree of fineness when 
converting the sound level into a numeric value is called 
the quantized bit rate.
The frequency band that can be played back is determined 
by the sampling rate, while the dynamic range expressing 
the difference in sound level is determined by the 
quantized bit rate. In principle, the higher the sampling 
rate, the wider the frequency range that can be played 
back, and the higher the quantized bit rate, the finer the 
sound that can be reproduced.