Alpine IVE-W535HD Owner's Manual (english) - Page 46
Setting Defeat, Volume Setting, Setting the Volume for Each Source, About Time Correction
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4 To store the adjusted setting value, touch and hold [Preset1], [Preset2], or [Preset3] for at least 2 seconds. • Touch [Flat] to initialize all values. • If the Rear Speaker setting is "Off," the Rear Speaker setting cannot be edited (Refer to page 43). • If the Subwoofer setting is "Off," the Subwoofer setting cannot be edited (Refer to page 43). • While adjusting the X-OVER you should consider the frequency response of the connected speakers. Calling the X-OVER adjusted value Calling the pre-set X-OVER adjusted value. Touch [Preset1], [Preset2], or [Preset3] on the XOVER screen. The setting stored in the Preset will be recalled. About Time Correction The distance between the listener and the speakers in a car vary widely due to the complex speaker placement. This difference in the distances from the speakers to the listener creates a shift in the sounds image and frequency characteristics. This is caused by the time delay between the sound reaching the listener's right versus the left ear. To correct this, this unit is able to delay the audio signal to the speakers closest to the listener. This effectively creates a perception of increased distance for those speakers. The listener can be placed at an equal distance between the left and right speakers for optimum staging. The adjustment will be made for each speaker in 3.4cm steps. Example 1. Listening Position: Front Left Seat Adjust the time correction level of the front left speaker to a high value and the rear right to zero or a low value. Setting Defeat [Defeat] is selected on the Sound setup menu in step 3. Refer to "Sound Setup Operation" (page 42). If Defeat is "On," MX, Bass Max EQ, Download Sound Setting and Parametric EQ functions are turned OFF. This disables any settings made for these functions. Setting item: Defeat Setting content: Off (Initial setting) / On 0.5m 2.25m 5.1ms Volume Setting [Volume] is selected on the Sound setup menu in step 3. Refer to "Sound Setup Operation" (page 42). You can change the volume of the sound heard when a button is touched. Setting item: Key Sound Feedback Setting contents: 0 to 7 (Initial setting: 4) Setting the Volume for Each Source [Source Volume Setup] is selected on the Sound setup menu in step 3. Refer to "Sound Setup Operation" (page 42). The volume level for each source can be adjusted. Setting item: Radio / SiriusXM / DVD / CD / Compressed Media / iPod Music / iPod Video / Pandora / AUX / AUX3 / BLUETOOTH Audio* Setting contents: -14 to +14 (Initial setting: 0) * BLUETOOTH Pandora correspond to BLUETOOTH Audio. • Settable source differ depending on the connected device and settings. The sound is not balanced because the distance between the listening position and the various speakers is different. The difference in distance between the front left speaker and the rear right speaker is 1.75 m (68-7/8"). Here we calculate the time correction value for the front left speaker in the diagram on the above. Conditions: Farthest Speaker - listening position : 2.25 m (88-9/16") Front left speaker - listening position : 0.5 m (19-11/16") Calculation: L = 2.25 m - 0.5 m = 1.75 m (68-7/8") Time correction = 1.75 ÷ 343*1 × 1000 = 5.1 (ms) *1 Speed of sound: 343 m/s (765 mph) at 20°C In other words, giving the front left speaker a time correction value of 5.1 ms makes it seem as if its distance from the listener is the same as the distance to the farthest speaker. Time correction eliminates the differences in the time required for the sound to reach the listening position. The time of the front left speaker is corrected by 5.1 ms so that its sound reaches the listening position at the same time as the sound of other speakers. Example 2. Listening Position: All Seats Adjust the time correction level of each speaker to almost the same level. 1 Sit in the listening position (driver's seat, etc.) and measure the distance (in meters) between your head and the various speakers. 2 Calculate the difference between the distance correction value to the farthest speaker and the other speakers. L = (distance to farthest speaker) - (distance to other speakers) 46-EN