User manual
8
Figure 2 - Rear Panel
9
17
The Volume Stabilizer is a device designed to minimize unwanted volume fluctuations
in music or other audio sources while maintaining the dynamics of the music. It
works by monitoring the input signals and then adjusting a variable gain circuit to
provide the proper output signal. It increases the signals below a threshold and
decreases the signals above this threshold.
The SVS-1B changes only the volume just like a volume control. It does not change
any frequency response or phase information for optimal sound quality and so it
works with surround sound systems.
Refer to figure 7 at left, for the following discussion. The left and right audio signals
are rectified, fed into a logarithmic amplifier and then summed together. The
logarithmic converter is used to convert from the linear voltages to logarithmic voltages
that follow the db curve to give proper volume adjustment. A single control channel
is used to eliminate volume differences between the left and right channels that would
cause imaging shifting of the sounds. This control signal is fed to the dual time
constant circuit and then to the left and right variable gain amplifiers.
Technical Information
8
Figure 2 - Rear Panel
9
17
The Volume Stabilizer is a device designed to minimize unwanted volume fluctuations
in music or other audio sources while maintaining the dynamics of the music. It
works by monitoring the input signals and then adjusting a variable gain circuit to
provide the proper output signal. It increases the signals below a threshold and
decreases the signals above this threshold.
The SVS-1B changes only the volume just like a volume control. It does not change
any frequency response or phase information for optimal sound quality and so it
works with surround sound systems.
Refer to figure 7 at left, for the following discussion. The left and right audio signals
are rectified, fed into a logarithmic amplifier and then summed together. The
logarithmic converter is used to convert from the linear voltages to logarithmic voltages
that follow the db curve to give proper volume adjustment. A single control channel
is used to eliminate volume differences between the left and right channels that would
cause imaging shifting of the sounds. This control signal is fed to the dual time
constant circuit and then to the left and right variable gain amplifiers.
Technical Information