The division between the LF and HF driver on the speaker was approximately 5 feet from the concrete floor. The garage doors were closed during the measurements. The entire procedure takes place in a 3 car garage that is approximately 35’x16’x8 ½â€™. The final reason is that the DR260 has the ability to show the RTA data in real time. The second is based on the assumption that the auto-EQ algorithms are the same. The first is that the limited amount of time available to take the data prohibited testing more than one device. The DriveRack PA was not used in this test for three reasons. €¢Ěll audio cable is Canare L-2T2S and hand terminated by me €¢ĝata collected by computer (Dell Inspiron 8200) through a Sound Devices USB Pre 1.5 The test data is taken with the following equipment. In the interest of having a familiar set of working parameters, some very common and relatively inexpensive components were chosen for testing. All of these issues become important and the combination is just too demanding of the number of measurements to get timely and valuable data.
These include, on-axis, off-axis, centered, off center, with and without subs, different distances between subs/LF drivers, crossover slopes, etc. Multiple speakers are not considered since there are so many combinations of issues that could be measured. Repeatability measurement of the DR 260 auto-EQĢ.ĝirect on axis speaker frequency response measurement in close range (near field)ģ.ĝirect on axis speaker frequency response measurement at greater distance (far field)Ĥ.ğrequency response with the measurement microphone on the floor This data will be gathered through four measurements.ġ. These issues include the repeatability of the data, effects of microphone position, the effects of the room and a comparison to an FFT based analysis program. Data is collected to explore several issues through the measurements.
The purpose of this paper is to provide comparative acoustic measurements between SmaartLive, and the real time analysis (RTA) and auto-EQ functions of the DriveRack 260 (DR260) under various conditions.
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