USER’S MANUAL / bit Tune /
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1. BIT TUNE DESCRIPTION
The bit Tune is a set of electronic tools that improve and simplify audio installations in cars.
The system consists of an audio interface featuring a set of microphones, various connections and a connection to
the PC where the software is the user interface and provides for the management and analysis of the audio system.
The tools are mainly divided into two groups, requiring a connection to the PC: self-calibration of Audison bit
processors, and electrical and acoustic analysis tools.
There is an additional group of tools that do not require a PC and that can help in solving some of the problems that
are often encountered in car audio installations.
The bit Tune, in addition to being a valuable tool to optimally and quickly calibrate the Audison bit signal
processors, is also a very useful set of electronic tools which, in audio applications, replaces several bulky,
expensive and complex traditional instruments that are often not available.
With the bit Tune there is considerable support for increasing audio knowledge, finding solutions to complex issues
and experiment according to your creativity.
AUTOMATIC CALIBRATION OF AUDISON BIT PROCESSORS
The PC software, through the hardware acquisition system connected to the PC via USB, performs the analysis of
the acoustic response of the car’s passenger compartment and it sets, through a Target curve, the optimal acoustic
response and time delays that the installed processor will store in memory.
The Target curve is a goal to be achieved taking into account several factors:
A) Type of vehicle’s passenger compartment.
B) Type of amplification system installed.
C) Response of the speakers.
D) Type of processor installed.
The Target curve can be linear (Flat curve) providing a linear response that can be measured instrumentally by RTA
measurement.
Experience suggests that a degree of coloring of the response confers greater pleasantness to the listening
experience. To that end, two more Target curves (Acoustic, Rhythm) can be chosen according to personal taste.
The Target curve can also be modeled at will (Custom) to allow sound characterization according to personal
listening experience.
In order to listen to the different target curves it is necessary to allow the bit Tune to program the processor using
its available memory. Sound processing is performed by the processor, following the instructions provided by the bit
Tune.
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