Sound pressure level l - sound pressure level (dB).

Sound Level Pressure(SPL, Russian slang) choke) - autosonic competitions for maximum sound pressure. During the competition, the judges measure the peak sound pressure inside the car, or in the immediate vicinity of the car.
It depends on the moral stability of judges. Using a digital spectrum analyzer or sound level meter. Competitions are held in several classes. The division into classes mainly occurs according to the number of subwoofers installed in the car. The cars with the highest results win in their class. Measurements are traditionally made in decibels.

Competitions for the maximum sound pressure inside the car originated in America about twenty years ago and quickly gained popularity around the world. The spectacular form of the competition quite easily allows you to turn them into a spectacular show, which attracts many fans and spectators. At the same time, SPL competitions are not just an exciting spectacle. Car audio professionals (all as one athletes) believe that only during the competition can you determine the correct choice of amplifiers and speakers, check their durability and quality of work in extreme conditions. Creating a powerful bass in a car is not an easy task, for its solution they use special combinations of huge power amplifiers and a set of the largest subwoofers. The SPL is dominated by the exact sciences, mostly physics and mathematics, although many problems are solved with the help of geometry and the old sopromat. To increase the sound pressure even by 3 dB, the power of the amplifier must be doubled, so few cars can overcome the 150 dB mark. Each new decibel beyond this limit is achieved with great difficulty - a simple increase in the power of amplifiers is no longer enough, reliable speakers and amplifiers of a special design are required. The process of calculating and assembling a sports system is reminiscent of the creation of Formula 1 racing cars.

In fact SP L stands for the Standard PHP Library, a collection of classes and interfaces for solving common problems in PHP. The library was introduced in PHP 5 and is available by default since PHP 5.

Competitions

car audio competition is a spectacular event, dynamic in nature and attracting numerous spectators of the widest range of interests. Car audio competitions originate in America. In Russia, 1998 can be considered the birth date of car audio, at the same time the SPL club was created, which is currently the oldest of the existing domestic competitive systems. All competitions are held according to the same standards and rules, at a high quality level, subject to a single goal - the popularization of car audio in Russia.

SPL-Club (classic SPL)

SPL competition is a type of car audio competition in which the participant must show the maximum sound pressure inside the vehicle.

The vehicle and installation of the participant must comply with the requirements of these Rules.

In cases where a particular system or setup would be outside the scope of these Rules, the right to decide on this participant is transferred to the Chief Judge for consideration, to determine whether the installation is consistent with the spirit and goals of the competition.

The signal source must be a standard car CD/DVD player.
Sound generators, frequency multipliers and any other devices and devices that imitate a real sound signal are prohibited.
All audio material must be played through loudspeakers.
The use of mechanical and / or other devices to reproduce sound is not allowed.
All equipment is located inside the car
The audio system must be powered from the on-board network of the participant's car.

Through holes in the floor (body) are prohibited. It is forbidden to bring out the phase inverter ports.
Any equipment must not protrude beyond the front door opening. This rule applies both to the subwoofer cabinet and applies to amplifiers, capacitors, batteries.
It is forbidden to exhibit the same vehicle in more than one class (category).
The participant has the right to compete in only one class (category).

All rules are interpreted according to their purpose and spirit.
In disputed cases, the decisions of the chief referee are final.
The participant undertakes to comply with these rules and follow the decisions of the Chief Referee

D.B. Drag Racing

Competitions dB Drag Racing appeared in 1994. The name already speaks for itself. dB - designation of the sound pressure value decibel (Russian designation - decibel or dB), Drag Racing - popular quarter-mile races. The main difference between dB Drag Racing and other formats is precisely the similarity to quarter-mile races, where qualifying races are held to determine the order of paired rounds, where two cars in a head-to-head fight find out who is worthy to continue the fight for victory, and who will leave the competition ahead of schedule. To do this, the audio system must be not only loud, but also hardy in order to withstand a series of measurements.
This form of holding significantly increases the excitement of the competition and requires composure, certain tactics from the participants, and great endurance and fault tolerance from the equipment.
Since there are many ways to create sound pressure in the car interior, dB Drag Racing rules clearly regulate all permitted methods and describe the division of participants into divisions and classes according to the degree of modification of the car and the types of equipment used, in order to maximally equalize the opportunities for all participants.

Beach SPL

Beach SPL- this is an autosound competition in which the main task of the participant is to achieve the highest sound pressure developed by his audio system outside the car.

Competition principles:

Rules

Competition principles:

The audio system should be loud and musical;

The audio system must be accessible to viewers;

The audio system must be safe when operating the vehicle.

Based on these principles, this type of competition differs from similar events in the following ways:

Sound pressure measurement is carried out on an ordinary musical soundtrack, in the entire frequency range, outside the car at a distance of 5 meters;

The participant is obliged to demonstrate his audio system to the audience;

The completeness of audio systems, its aesthetics are evaluated;

The safety of the audio system is assessed;

The division into classes of participants is made:

a) by the number of loudspeaker heads used,

b) to fill the audio system space of the car.

The musicality of the audio system.

A sign of the musicality of the audio system is the ability to work in a wide band of audio frequencies. When playing a phonogram, it must contain not only a low-frequency low-frequency range, but also a mid-frequency midrange and a high-frequency high-frequency range. Musicality is assessed by a measurement judge subjectively by ear or objectively using a spectrum analyzer. The difference in sound pressure level between the main spectrum and the resonant narrow-band sound should not exceed 20 dB. Also, the MF and HF components should not fall by more than 10 dB relative to the average sound pressure.

Additional points are awarded for the musicality of the audio system:

2 points for no resonant narrowband sound;

2 points for the presence of the midrange component;

1 point for the presence of the RF component

Completeness, aesthetics of the audio system.

The participant is obliged to demonstrate his audio system. The audio system must have a complete appearance (all trim and interior panels must be present, all elements of the audio system must be on the podiums or integrated into the interior of the car, fixed, the wiring is hidden). An audio system that was installed to design the interior of a car or to showcase new technology or innovation deserves additional credit for aesthetics.

The aesthetics and completeness of the audio system is determined by the installation judge.

For the completeness of the audio system adds 1 point.

For the aesthetics of the audio system, 1 point is added.

Audio system security.

The protection of passengers and cargo, the protection of audio system elements, and the protection of the audio system from short circuit short circuits are considered.

Protection of passengers and cargo.

Elements of the audio system must be securely fastened so that the possibility of damage to passengers and cargo by the elements of the audio system is excluded. The reliability of fastening the elements of the audio system is checked by hand for displacement.

Protection of audio system elements.

The elements of the audio system must be installed so that passengers and cargo during the operation of the car cannot mechanically act on the diffusers and speaker terminals, controls and terminals of amplifiers, head unit.

Short circuit protection.

There should be no open bare wiring, including capacitors, power distributors, amplifier terminals and other audio system devices that can accidentally get foreign metal objects and cause a short circuit.

For the fulfillment of the safety conditions for each safety item, an additional 1 point can be awarded.

The elements of the audio system include: the head unit, audio frequency amplifiers, control units and audio signal correction, power distribution devices, additional batteries and capacitors, speakers, signal and power wiring.

Only that part of the audio system that is offered for demonstration is evaluated.

Classes.

The participants are currently divided into three classes.

Super class. One subwoofer and/or up to two 8" full range speakers.

Mega class. Two to four subwoofers and no more than four 8" full range speakers.

These classes imply regular use of the car, i.e. the use of all the main seats, the trunk for transporting passengers and goods, maintaining visibility, maintaining the functionality of the doors. In this case, it is allowed to use only elements of the car audio industry in the audio system.

In both classes, the audio system should not occupy more than 50% of the luggage compartment, not go beyond the glazing line, and not occupy seats. The audio system must be powered only from the vehicle's on-board network. The signal and control source is the head unit located at the driver's seat.

Extreme class. More than four subwoofers and/or more than four 8" full range speakers.

The third class is intended for those who have made their car a platform for sound experiments - these are demo cars, cars in which the number of acoustic systems is increased more than reasonable, cars in which car installations are relegated to the background.

Any use of the car space is allowed. It is allowed to use any electro-acoustic technologies and developments. The audio system must also be powered only from the vehicle's on-board network. The signal source can be located anywhere in the car or be remote.

One 8" head equals two 6" heads four of 5", eight of 4" or combinations thereof.

Mandatory conditions for all classes are: arrival and departure to the site must be carried out on their own. The audio system must have an aesthetic appearance. Participants using abnormal vocabulary in the phonogram are not allowed to compete. The aesthetics of the audio system installation is determined by the installation judge.

The order of the competition.

Competitions can be divided into several stages: registration of participants, arrival at the measurement site, demonstration of the audio system, assessment of safety and compliance with the class, preparation for the measurement, the measurement of HT itself, evaluation of the results, announcement of the winners.

Registration. Produced in advance on the site www.aespb.ru or the website of the organizer of the competition. Registration conditions are specified in the same place. Registration is allowed at the venue of the competition on the day of the competition, unless it is agreed in advance by the organizer or in agreement with the Chief Referee of the competition.

Check-in to the site. It is carried out strictly in turn in compliance with the rules of the road under the guidance of line judges. At the time of the competition, the participant is obliged to obey the linesman for driving the vehicle on the competition site. The line judge determines to the participant the place where the vehicle stops for measurements. When the vehicle stops, the participant is obliged to take all measures so that it cannot move spontaneously (the vehicle must be put on the parking brake and (or) with the engine turned off at speed). Only one car must be on the site at a time during the race.

Demonstration. To achieve the main goal of the competition, the participant must demonstrate his audio system to the audience. At the same time, the organizers of the competition can resort to the elements of the show, ask questions to the participant, publicly evaluate the audio system, etc. The participant must be ready for this.

Aesthetics, safety, class definition. During the demonstration, the installation judge determines the conformity of the declared class by the participant with reality and evaluates the completeness of the audio system, its aesthetics, and safety. All scores and comments are recorded in the protocol and immediately announced to the participant.

Preparation for measurement. The participant prepares and sets up the audio system, selects a musical soundtrack even before entering the site. On the site, after the demonstration, he quickly prepares the car for measurement (opens or closes doors, windows, trunk, etc. at his discretion). At this time, the judge responsible for the measurement process sets the device at a distance of 5 meters from the extreme point of the car . You can use a template to measure distance. If a participant requires HT measurement from a different position, then he himself rearranges his car in such a way that the position of the device relative to the site does not change. The instrument is preparing for measurement.

HI measurement. The measurement is performed by an instrumental sound level meter with an accuracy class of at least 2.0 with the weighting filter of type "C" switched on in the "MAX" accumulative mode. The choice of the measurement scale can be automatic or manual, vernier with a gradation of at least 0.5 dB. The measurement starts when the participant is ready to turn on the soundtrack at the command of the measurement judge. The soundtrack time is from 20 to 40 seconds. Up to three attempts are allowed. The break between attempts is no more than 2 minutes. The number of attempts in specific competitions is determined by the Chief Judge based on the number of participants. Measurements are possible under the following conditions. First, during the measurement, there should be no extraneous loud sounds on the site, such as the exhaust of another car or a demonstration of the "playability" of another audio system. In case of non-compliance with this rule, the results of the replacement will be invalid. The participant will be given the right to an additional attempt, and administrative measures will be applied to the violator. Secondly, between the device and the car in a solid angle of 60 degrees (the device is the top of the corner) and around this corner within a radius of 2 meters, except for the judge, there should be no one during the measurements. In case of violation of this rule, the result may also be invalid and the need to remeasure.

Evaluation of results, protocol. The protocol of results is kept in the form of a summary table of the sample established by the organizing committee of the competition by one of the judges. All measurement results and additional points are entered into the protocol with their simultaneous announcement to the participants. The overall assessment of the results is made upon completion of all measurements. Seats are posted in classes. A working copy is made. Only after that the participants get access to the protocol of measurements.

The total result of the participant is equal to the sum of the maximum result of measurements and additional points.

Announcement of winners. As a rule, this happens at the end of the competition. According to the results of the competition, all participants are issued a "Participant's Diploma" with the achieved result. Winners from 3rd to 1st place are awarded diplomas of winners. If the organizers of the event provide, then simultaneously with the announcement of the winners, they are also awarded with cups, valuable gifts, etc.

These rules are not absolutely perfect. Therefore, they must be perceived on the basis of the principles and goals of these competitions.

Guys, what is sq and spl in car audio, please give a description

1. That is, the power of the bass?
2. These are types of car audio competitions.

   SQ is a competition for sound system design and sound quality. The more beautiful and neat everything is decorated, and the more beautiful the audio system sounds, the more chances to win.
   SPL is a sound pressure competition. The main task is to squeeze as many decibels out of the audio system as possible. Sun is measured with a special device. Sound quality doesn't matter here. As is the decor. Wires can be scattered everywhere, the body is not sheathed with carpet, dirt in the cabin, etc. etc.

3. SPL Sound Pressure Level
   SPL competition for maximum sound pressure. During the competition, the judges measure the peak sound pressure inside the car, or in the immediate vicinity of the car, it depends on the moral stability of the judges.))
   Measurements are made using a digital analyzer used in a specific format. Competitions are held in several classes. The division into classes mainly takes place according to the number of subwoofers installed in the car, according to the size of the box, etc. The cars that show the highest results win in their class. Measurements are traditionally made in decibels.

   All this originated in America about twenty years ago and quickly gained popularity due to the spectacular form of holding and the easy opportunity to turn competitions into a bright show, which attracts many fans and spectators.
   At the same time, SPL competitions are not just an exciting spectacle. They also determine the correct choice of amplifiers and speakers, check their margin of safety and the quality of work in extreme conditions.
   It should be taken into account that creating a powerful bass in a car is not an easy task, special combinations of huge power amplifiers and a set of the largest subwoofers are used to solve it, exact sciences are also involved in SPL, mainly physics and mathematics, although many problems are solved using geometry and sopromat.
   In the simplest example, to increase the sound pressure even by 3 dB, the power of the amplifier must be doubled. Each new decibel beyond 150 dB is achieved with great difficulty, simply increasing the power of amplifiers is no longer enough. The process of calculating and assembling a sports system is reminiscent of the creation of Formula 1 racing cars, in which everything is decided by the smallest moments of assembly.

   All this is demonstrated at competitions of various formats.

   A type of car audio competition in which the participant must show the maximum sound pressure inside the vehicle.
   The vehicle and installation of the participant must comply with the requirements of the Rules of this format.
   In cases where a particular system or setup would be outside the scope of these Rules, the right to decide on this participant is transferred to the Chief Judge for consideration, to determine whether the installation is consistent with the spirit and goals of the competition.
   The signal source must be a standard car CD/DVD player.
   Sound generators, frequency multipliers and any other devices and devices that imitate a real sound signal are prohibited.
   All audio material must be played through loudspeakers.
   The use of mechanical and / or other devices to reproduce sound is not allowed.
   All equipment is located inside the car
   The audio system must be powered from the on-board network of the participant's car.
   Through holes in the floor (body) are prohibited. It is forbidden to bring out the phase inverter ports.
   Any equipment must not protrude beyond the front door opening. This rule applies both to the subwoofer cabinet and applies to amplifiers, capacitors, batteries.
   It is forbidden to exhibit the same vehicle in more than one class (category).
   The participant has the right to compete in only one class (category).

   All rules are interpreted according to their purpose and spirit.
   In disputed cases, the decisions of the chief referee are final.
   The participant undertakes to comply with these rules and follow the decisions of the Chief Referee.

   The format of the competition is maximum entertainment!
   These competitions feature cars with settings for low and very low everyday bass. All this gathers numerous audiences of fans of flex, heirtrick and cracking windshields.

4. I heard that spl is a brand of car amplifier.

SPL competition is a type of car audio competition in which the participant must show the maximum sound pressure inside the vehicle.

The vehicle and installation of the participant must comply with the requirements of these Rules.

In cases where a particular system or setup would be outside the scope of these Rules, the right to decide on this participant is transferred to the Chief Judge for consideration, to determine whether the installation is consistent with the spirit and goals of the competition.

The signal source must be a standard car CD/DVD player.

Sound generators, frequency multipliers and any other devices and devices that imitate a real sound signal are prohibited. All audio material must be played through loudspeakers.

The use of mechanical and / or other devices to reproduce sound is not allowed. All equipment is located inside the car

The audio system must be powered from the on-board network of the participant's car.

Through holes in the floor (body) are prohibited. It is forbidden to bring out the phase inverter ports.

Any equipment must not protrude beyond the front door opening. This rule applies both to the subwoofer cabinet and applies to amplifiers, capacitors, batteries.

It is forbidden to exhibit the same vehicle in more than one class (category). The participant has the right to compete in only one class (category).

All rules are interpreted according to their purpose and spirit.

In disputed cases, the decisions of the chief referee are final.

The participant undertakes to comply with these rules and follow the decisions of the Chief Referee

CLASSIFICATION SYSTEM OF PARTICIPANTS

All participants are divided into categories:

Bass Super

RESTRICTIONS:

Participants competing in the “Bass” sections are prohibited from starting the car engine during measurements.

The head unit must be installed inside the passenger compartment in the front panel.

External buttons, mute buttons or any other remote control devices other than the original head unit remote control are prohibited.

If the vehicle is a two-seater (driver and passenger) hatchback, all audio equipment not covered by this requirement must be located behind the side pillars, with the exception of amplifiers that may be mounted under the seat.

The total capacitance of the “amplifying” capacitors in the Bas 1 and Bas 2 classes is limited to 1 f.

Batteries must be 12 volts.

Hybrid (i.e. 12/16 volt) and/or custom batteries are prohibited.

It is allowed to fold, but not remove the back of the rear seat during the measurement.

It is allowed to stay inside the car.

It is not allowed to have a remote head unit.

All subwoofers must not protrude above the lower edge of the rear window in the trunk area

Installation of additional generators and/or batteries is not allowed.

Subwoofers must not exceed 12 inches in diameter.

The number of amplifiers connected to each subwoofer is no more than two.

Bass category installations with 1 subwoofer up to 12" and 1 amplifier.

Bass category installations with 2 x 12" subwoofer speakers and 2 x amplifiers

The "Bass Super" category is intended to attract advanced participants with experience in SPL competitions. Audio systems that are different from the usual. This class allows the use of additional batteries

RESTRICTIONS:

Competitors competing in the “Bass Super” sections are not allowed to start the car engine during measurements.

It is not allowed to participate in this category of minibuses and trucks, as well as vehicles with more than 7 seats.

Modifications to the passenger compartment and the car that prevent the use of the vehicle for the intended purpose provided by the manufacturer are prohibited.

It is forbidden to strengthen the body and change its internal and external dimensions.

If the signal source is inside the car, then it can be controlled:

Using the remote control from outside the car.

Directly from the salon

It is allowed to fold and remove the back of the rear seat during the measurement.

All subwoofers must be in the trunk.

All subwoofers must not protrude above the lower edge of the rear window in the trunk area.

Any element of the subwoofer (case, panel, wall, speaker, port) must not protrude into the cabin.

Additional batteries are allowed.

Competitors in the Super Bass 1-2 class are limited to one extra battery.

Subwoofers must not exceed 15 inches in diameter.

The number of subwoofers is not more than 2.

The number of amplifiers connected to each subwoofer is no more than four.

BASS-SUPER -1:

Installations that meet the requirements of the Super Bass category and have 1 subwoofer speaker.

BASS-SUPER -2:

Installations that meet the requirements of the Super Bass category and have 2 subwoofer speakers

The Bass Pro category is aimed at attracting advanced participants who are not new to SPL competition and can overcome a high qualification minimum. Their systems are different from conventional audio systems. An additional generator is allowed.

BAS-PRO1 AND BAS-PRO2 LIMITATIONS:

All subwoofers must be located inside the car

All subwoofers must not protrude above the lower edge of the rear window. (Available for subwoofers or rear shelf ports)

Any element of the subwoofer (body, panel, wall, speaker, port) must not protrude beyond the front door pillar opening.

Minibuses and trucks are not allowed to participate in this category.

Subwoofers shall not exceed 18 inches in diameter.

The number of subwoofers is not more than 2.

The number of amplifiers connected to subwoofers is unlimited.

It is forbidden to strengthen the body and change its internal and external dimensions.

The signal source may be outside.

If the signal source is inside the car, then it must be controlled using the remote control outside the car.

The participant must not be inside the car during the measurement.

It is allowed to start the engine for measurement.

The main battery must be in the original location.

The secondary battery (if fitted) may be located behind the side pillars or under the hood, provided that other applicable rules are not violated.

Batteries cannot be installed under the vehicle. (compartments, shelves for the battery under the bottom are prohibited).

Batteries cannot be changed during the competition.

The total capacitance of the “amplifying” capacitors in the Bass-Pro classes is limited to 5 farads

Participants in the class “Bas-Pro” 1-2 are limited to 2 batteries,

Battery compartments located under the vehicle are prohibited.

it is possible to install the entire system behind the front door pillars and below the trunk glazing

The subwoofer system can be installed inside or in the back seat(s) of the vehicle.

The rear seat(s) may be removed or folded at the discretion of the competitor.

Use of additional storage batteries and additional generators is allowed.

The front seats of the car can be folded down during the competition.

The rear seats can be folded OR removed from the vehicle.

The power supply of the audio system must not exceed 18V.

BAS-PRO -1:

Installations that meet the requirements of the Bas-Pro category and have 1 subwoofer speaker.

BAS-PRO -2:

Installations that meet the requirements of the Bas-Pro category and have 2 subwoofer speakers

Subwoofers are not limited in size.

The number of amplifiers is not limited.

The number of batteries and generators is not limited.

It is allowed to modify the car, remove the seats for the time of measurement, replace the windshield, replace the dashboard, replace the seats, reinforce the doors, raise the floor and lower the roof, remove or replace the center console, use zip ties.

RESTRICTIONS:

The viewing area of ​​the windshield must be at least 70% of the standard glass area.

The instrument panel may not exceed the height of the hood by more than 10cm.

Seats can be replaced with non-standard ones, but must provide the ability to drive a car.

The center console must not be higher than the dashboard.

Any element of the subwoofer (case, panel, wall, speaker, port) must not protrude beyond the line of the front door opening.

It is forbidden to change the size and shape of the front door openings.

It is forbidden to change the external dimensions of the car.

There are no restrictions on the number and type of batteries allowed for use.

Battery compartments located under the vehicle are permitted provided they are located under a plane defined by the level of the floor superstructures and satisfy all other requirements.

The original alternators can be replaced or "upgraded". No more than 2 generators can be installed on a vehicle

BASS-EXTREME -1-2:

Installations that meet the requirements of the Bass-Extreme category and have 1 or 2 subwoofer speakers.

BASS-EXTREME - 3+:

Installations that meet the requirements of the Bass-Extreme category and have more than 3 subwoofer speakers.

REQUIREMENTS FOR THE INTERIOR OF THE CAR IN THE BAS-EXTREME CLASS

It is forbidden to change the dimensions of the car doors.

It is forbidden to change the shape of doorways.

It is forbidden to modify the outer part of the car body.

It is allowed to use the hatch for the pedal box.

Regular glass can be replaced with plexiglass.

REQUIREMENTS FOR PARTICIPANTS AND CARS OF PARTICIPANTS

REQUIREMENTS FOR CARS OF PARTICIPANTS

The vehicle (car) participating in the competition must be mass-produced, and not specially created for this competition.

The car must drive in and out of the judging area on its own.

Failure to comply with this requirement will result in disqualification.

The exception is indoor competitions.

INSTALLATION REQUIREMENTS

The subwoofer must not protrude beyond the front door opening.

This rule applies both to the subwoofer cabinet and applies to amplifiers, capacitors, batteries.

It is forbidden to bring out the phase inverter ports.

External generators, batteries, etc. are prohibited.

All components of the audio system must be inside the vehicle.

Note

The battery, if it is not located in a regular place, is considered additional.

REQUIREMENTS FOR VEHICLE AUDIO EQUIPMENT

The battery can be replaced with a more powerful one.

Starting capacitors - equated to batteries

Nothing but seats should be placed in front of the cut of the doorway.

Any part attached to a subwoofer is considered part of it, such as an amplifier or battery.

It is forbidden to rearrange audio system components from one vehicle to another during one competitive stage.

Example: Competitor A, having performed, lends an amplifier to participant B

Passive radiators, ports are not considered woofers.

RULES OF CONDUCT FOR PARTICIPANTS

The participant can be inside the vehicle only in the Bass category.

The participant must be outside the vehicle in the Bas-Super Bas-Pro and Bas-Extreme categories.

Any adjustments to the sound system may be made during the competition.

The participant is given 3 minutes to enter the judges' area and prepare the car for measurement.

Failure to appear at the measuring post within the agreed time after the referee calls the participant is regarded as a refusal.

It is forbidden to open the doors until the end of the measurement. Violation of this rule leads to the annulment of the result and disqualification.

The engine can only be started with the hand brake applied.

If a participant in any way interferes with the competition in the judges' area, he receives a warning.

A second warning will result in the participant being disqualified for the remainder of the season. Rude remarks against the SPL club and the judiciary in oral or written form (Internet) leads to the disqualification of the participant until the end of the season.

INSPECTION OF CARS, VIOLATIONS OF RULES, FINES.

Judges reserve the right to inspect the participant's car for compliance with the declared class.

If a participant refuses to perform an inspection, its result will be canceled and the participant will be disqualified.

Inspection of the car is carried out by a competent team of judges of this stage.

Looking around: Audio system, Subwoofers, Vehicle.

In case of detection of violations of the rules for classifying a car, the result is not counted.

If the violation of the rules is not related to falsification and if the participant is able to eliminate it within 15 minutes, then he is given the right to re-measure.

If the violation of the rules is not related to falsification, but cannot be eliminated within the specified period, then the participant will be disqualified.

PROCEDURE FOR CARRYING OUT OFFSETS.

The participant is given two attempts to register the result.

Exception:

a second attempt is not granted to competitors who did not qualify for their class on the first attempt.

The measurement is made within 30 seconds.

At the signal of the judge, the measuring complex is turned on and the participant (s) is given 30 seconds, during which the sound pressure level is continuously measured in the peak value memorization mode.

The doors and windows of the car must be closed.

The participant is forbidden to open the car during the measurement and leave doors, hatches, windows open.

The highest reading of the device is taken as the result shown by the participant.

POSITIONING THE SENSOR.

The sensitive element of the sensor is placed at a distance of 30 cm from the windshield pillar, 10 cm from the dashboard and 2.5 cm from the inner surface of the windshield.

A special template is used to check the correct installation of the sensor.

The sensor is installed by the judge, who must ensure that the sensor is securely installed and does not touch any objects.

JUDGES ON THE COURT.

There are two judges in the standings.

The chief referee works with measuring devices, the second referee installs the sensor.

After setting the sensor, the head judge waits for the signal that the competitor(s) are ready.

During the round, the judges observe the observance of the rules by the participants and the unchanged position of the sensor.

Note: If the sensor during the measurement is significantly displaced (falls), then the measurement is repeated upon receipt of a ready signal from the participant (s).

An attempt is considered used when a result is obtained according to all measurement rules.

Disqualification of the participant does not allow re-measurement in order to obtain results

You are here because you have a file that has a file extension that ends in .spl. Files with the .spl extension can only be launched by certain programs. It is possible that .spl are data files and not documents or media, which means they are not meant to be viewed at all.

what is a .spl  file?

Printing files in Microsoft Windows generates a couple of spooled files; one containing the SHD extension and one containing the SPL extension. SHD contains settings while SPL contains commands for drawing the printer. SPL files are commonly used when submitting a print job and the print data they contain is queued, meaning that they contain elements related to digital documents and this data is sent to the printer to start the print job. The data saved in these SPL files is in the format used in raw printers, which means SPL files can be RAW files, i.e. they can contain data similar to that of the data sent for printing, such as CAPSL, PCL, etc. . Since these files serve as temporary storage for print job data, they are freed when the job is completed and saved to C:\Windows\System32\Spool\Printers\ as soon as they are presented. SPL files are not the only files saved on Windows in that exact directory. It also saves url files on it by using which these files allow re-submission of print jobs in case of breaks.

how to open .spl file?

Run the .spl file or any other file on your computer by double-clicking it. If your file associations are set up correctly, the application that is meant to open your .spl file will open it. You may need to download or purchase the correct application. It is also possible that you have the correct application on your computer, but the .spl files are not yet associated with it. In this case, when you try to open the .spl file, you can tell Windows which application is the right one for that file. From then on, opening the .spl file will open the correct application.

applications that open .spl file

Microsoft Windows

Microsoft Windows

Microsoft Windows is a sequence of graphical interface operating systems developed, marketed, and sold by Microsoft Corporation. Some of its features are: (1) Windows Live - is a group of tools and software for Windows’ use. Users can have access to Windows Live by making a free account. This includes a chat client, networking tools, a movie maker and photo gallery, and email and Internet functions. A user can select to download and utilize all of these programs, or only download a selection of them depending on needs; (2) Windows Search - is a search function included with Windows that permits the user to search for files by name, date and file, text within a file in case user cannot remember the document name, and the entire computer. Windows Search is located in the start menu; (3) Windows Updates – this includes an automatic update feature with the purpose of keeping its operating system safe and up-to-date. Security updates are fixed with this feature to help protect against new risks as well as to apply any software updates and bug fixes. Users can set this feature to check for new updates and install them directly or turn off the automatic update feature and check for updates manually on their own; and (4) Windows Taskbar - is the central navigation tool for Windows. It includes the Start Menu, which allows users to open programs and features. It also includes a clock, calendar, and program icons for things such as usually utilized programs and updates. The taskbar and the items displayed in it are customizable. It is located at the bottom of the screen by default, but can be moved to the top or sides of the screen if the user chooses. The company launched an operating setting named Windows on November 20, 1985 as an add-on to MS-DOS in response to the rising interest in graphical user interfaces (GUIs). Microsoft Windows came to rule the world "s personal computer market with over 90% market share, overtaking Mac OS, which had been introduced in 1984. The most recent client version of Windows is Windows 7; the most recent server version is Windows Server 2012 ; the most recent mobile version is Windows Phone 7.5.

EMF Printer Spool File Viewer

EMF Printer Spool File Viewer

EMF Printer Spool File Viewer is used to view EMF spool file, which is an independent format usually held in the raw printer page definition language not officially documented by Microsoft (spool file is only supported by PCL, PostScript or one of many other options but not in Windows NT, 2000, 2003, and XP). This article reveals that it is a series of enhanced metafile records and numerous record types specifically in business. Select the menu File->Open in viewing the EMF spool file. A dialog box will appear allowing you to browse the spool file (with file extension .spl) and these will typically held in your $winnt$\System32\spool\ directory. If you want to send a file who doesn't have the application for viewing, use the application's print function and send the spool file to them since EMF spool file serves as a quick and dirty portable document format. Spool file has the structure of parsing the file in extracting information from it. If you want to extract only the text from a printed document for archiving, parse the file and extract the EMR_EXTTEXTOUTA and EMR_EXTTEXTOUTW records.

word of warning

Be careful not to rename the extension to .spl  files or any other files. This will not change the file type. Only a special conversion program can change a file from one file type to another.

what is the file extension?

A file extension is a set of three or four characters at the end of a filename, in this case, .spl. File extensions tell you what type of file it is, and tell Windows what programs to open. Windows often associates a default program for each file extension, so that when you double-click a file, the program starts automatically. While the program is no longer on your computer, you may sometimes receive an error message when you try to open the corresponding file.

FIX .spl FILE ASSOCIATION ERRORS

Find and fix file extension errors, registry issues, and quickly and easily restore optimal PC performance.

try Registry Reviver® Free.

Start download