Sound mixing strategy - MaxiScan OBD2 Scanner car audio delay processing

In a fever in the car audio to achieve good sound field and intonation, especially in do active crossover, MaxiScan OBD2 Scanner high-end host has time delay control function, but how to calculate time delay and debugging is not all people know the. This in the car audio industry in each have each secret, but all things become not depart from the Pope, today is through this article, for you answer it just a little.

The concept of time delay

In fact is to each speaker to voice, best reach you at the same time set by the emperor, such as driving a. In car DVD active partials, most is mainly each channel voice, and bass, due to the different from home audio installed in a plane, therefore, with the delay technology, will treble and bass to listen to position in time, This is one. Secondly, can also not need to tone or so track BALANCE BALANCE function, (as long as it is a car audio host, all have this function), can let you MaxiScan OBD2 Scanner  accurately the left and right channel that the center of the reduction of sound field position adjustment to your right ahead, or right in the middle of the car.

How to calculate time delay

This and the host name brand companies related to the design and the industry's most famous Japanese AErPa is show time, the cutting edge is directly using distance.

A, measurement methods: each speaker to listener position of the actual distance, use tape direct quantity each speaker sbb key programmer (Alt, bass) to the listener's position (with real in driving A reference), record the elements to the distance of the speaker.
Note: the subwoofer don't this method, adjusting method is described below. If is three frequency, Alt as all the way, the bass for all the way, so Alt measurement take both the average of the distance measurement.
B, AErPa host or processor: it is to use ms (ms) to calculate, usually step 0.1 ms. It's time delay process is reference farthest distance of speakers, other speaker to for reference, in turn, with their distance difference, the unit is mm mm, divided by the speed of sound in air 343 m/s, it can be concluded that the value, such as the measured distance difference for 1.25 m, the speaker to reference the speaker need to delay for: 3.6 ms. Each speaker time delay treatment, according to this method to do.
For example the right sound obd2 scanner  channel after the bass, usually farthest distance, such as 2.25 m, the former left channel in bass such as 0.5 m, then the front left channel its calculation method is 2.25-0.5 = 1.75 m, 1.75 X1000/343 = 5.1 ms. Here after the request right sound channel input value is 0.