Yamaha RX-V2700 Owner's Manual

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Linear PCM is a signal format under which an analog 
audio signal is digitized, recorded and transmitted without 
using any compression. This is used as a method of 
recording CDs and DVD audio. The PCM system uses a 
technique for sampling the size of the analog signal per 
very small unit of time. Standing for “Pulse Code 
Modulation”, the analog signal is encoded as pulses and 
then modulated for recording.

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When digitizing an analog audio signal, 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 number of quantized bits. The range of rates that can 
be played back is determined based on the sampling rate, 
while the dynamic range representing the sound level 
difference is determined by the number of quantized bits. 
In principle, the higher the sampling frequency, the wider 
the range of frequencies that can be played back, and the 
higher the number of quantized bits, the more finely the 
sound level can be reproduced.

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With the S-video signal system, the video signal normally 
transmitted using a pin cable is separated and transmitted 
as the Y signal for the luminance and the C signal for the 
chrominance through the S-video cable. Using the 
S VIDEO jack eliminates video signal transmission loss 
and allows recording and playback of even more beautiful 
images.

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Windows standard audio file format, which defines the 
method of recording the digital data obtained by 
converting audio signals. It does not specify the 
compression (coding) method so a desired compression 
method can be used with it. By default, it is compatible 
with the PCM method (no compression) and some 
compression methods including the ADPCM method.

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An audio compression method developed by Microsoft 
Corporation. It employs the irreversible compression 
method, which achieves a high compression rate by 
thinning out the data of hardly audible part to the human 
ears. It is said to be capable of compressing the data 
quantity by about 1/22 (64 kbps) while maintaining a 
similar audio quality to music CD.