Owner's Manual
Table Of Contents
- Quick Reference Guide
- Table of Contents
- Warnings
- Parts & Controls
- Power On / Off
- Switching the Source
- Favorite Function
- Registering Items
- Adroid Auto (Optional)
- Apple CarPlay Operation (Optional)
- Alpine ConnectApp (Optional)
- HD Radio / RBDS Operation
- USB Flash Drive Operation (Optional)
- Pandora Internet Radio Operation (Optional)
- SiriusXM Satellite Radio Operation (Optional)
- HDMI Device (DVD Player) Operation
- iPod / iPhone Operation (Optional)
- Hands-Free Phone Control
- Map Functions
- Navigation Menu
- Setting a Destination
- Note on Using HDMI Connection Cables
- Specs
- Owners Manual
- Reset
- Table of Contents
- Features
- Getting Started
- Location of Controls
- Turning Power On or Off
- Turning the System On
- Initial System Start-Up
- Adjusting the Volume
- Lowering Volume Quickly
- Touch Screen Operation
- Switching Sources
- Operating the Function Button on the Audio/Video Main Screen
- About Basic Operation for List Screen
- About the Shortcut Setup Screen
- About the Menu Screen
- About the Indicator Display
- Opening screen Customization
- How to Input Characters and Numbers (Keypad)
- Favorite Function
- Applying Alpine TuneIt App
- Setup
- Setup Operation
- Wireless (Bluetooth) Setup
- General Setup
- Sound Setup
- Setting the Balance/Fader/Rear Speaker/Subwoofer
- Setting the Media Xpander (MX HD)
- Equalizer Presets
- Adjusting the Parametric Equalizer Curve (Dual HD EQ)
- Adjusting the Crossover Settings (X-Over)
- Adjusting the Time Correction (TCR)
- Setting Defeat
- Setting the Volume for Each Source
- Adjusting the Caller Level
- Adjusting the Microphone Level
- Adjusting the Ring Tone Level
- Volume Setting
- Setting Audio Mute On/Off while Backing up
- Setting the Microphone Effect
- Default Sound Settings
- About the Crossover
- About Time Correction
- Picture Quality Setup
- Display/Key Setup
- General Setup
- Vehicle Setup
- Sound Setup
- Source Setup
- System Setup
- Apple CarPlay (Optional)
- Android Auto (Optional)
- Alpine Connect App (Optional)
- Radio/HD Radio/RBDS
- Radio Basic Operation
- Listening to the Radio
- Presetting Stations Manually
- Presetting Stations Automatically
- Tuning to Preset Stations
- Inputting Frequency Directly and Receiving the Radio Station
- Receiving a Multicast (HD Radio™ Mode only)
- Selecting the Receivable Program Type (RBDS FM Radio mode only)
- Forced Analog Mode
- Displaying Radio Text (RBDS FM Radio mode only)
- Using Ballgame Mode (HD Radio™ Mode only)
- About the Feature Logos
- Radio Basic Operation
- USB Flash drive (Optional)
- iPod/iPhone (Optional)
- Pandora internet radio (optional)
- SiriusXM Satellite Radio Operation (Optional)
- Receiving Channels with the SiriusXM Tuner
- Tuning Channels by Category
- Changing the Display
- Checking the SiriusXM Radio ID Number
- Storing Channel Presets
- Tuning Channels using Presets
- SmartFavorites Functions
- Search Function
- Selecting the Channel Directly
- Storing the desired Song/Artist
- Receiving and Tuning to an Alert
- Replay Function
- Parental Lock Function
- Using Jump Memory and Jump Recall function
- HDMI Device
- About HDMI selector (Optional)
- DVD Player Operation
- CD/MP3/WMA/AAC/WAV
- DVD
- Playing a Disc
- Playing Still Frames (Pausing)
- Stopping Playback
- Fast-forwarding/Fast-reversing
- Finding the Beginnings of Chapters/Tracks/Files
- Forward/Reverse frame-by-frame Playback
- Repeat Playback
- Searching by Title Number
- Searching Directly by Chapter Number
- Switching the Angle
- Switching the Audio Tracks
- Switching the Subtitles (Subtitle Language)
- Info Mode Function
- Switching Display Modes
- HDMI Operation
- Bluetooth Operation
- Auxiliary Device (Optional)
- Camera Operation (Optional)
- iDataLink Operation
- About Remote Control Operation (X209D only)
- Information
- Troubleshooting
- Specs
- Installation Manual
- Vehicle Applications
- Tools Required
- Supplied Accessories
- Programming the iDatalink Maestro Module
- Component Locations
- GPS Antenna Installation
- Factory Unit Disassembly Process
- Installation Instructions
- Connecting the uConnect USB Port
- Connecting a SiriusXM Module
- Mounting Brackets
- Exploded-View Diagram
- Bezel Wiring Diagram
- X209-WRA-OR Wiring Diagram
- X209-WRA-OR with Optional HDMI Interface Wiring Diagram
- Steering Wheel Configuration
- Set Up Guide
- Troubleshooting Guide
- Navigation System User Manual
- Warranty Note
- Warranty
39-EN
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 3.4 cm steps.
Adjust the time correction level of the front left speaker to a high value
and the rear right to zero or a low value.
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* × 1,000 = 5.1 (ms)
* 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.
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)
These values are the time correction values for the different speakers.
Setting these values to make each sound reach the listening position
at the same time as the sound of other speakers.
Time Correction Value List
Example 1. Listening Position: Front Left Seat
Example 2. Listening Position: All Seats
Time
Difference
(msec)
Distance
(cm)
Distance
(inch)
Time
Difference
(msec)
Distance
(cm)
Distance
(inch)
0.0 0.0 0.0 5.1 173.4 68.3
0.1 3.4 1.3 5.2 176.8 69.7
0.2 6.8 2.7 5.3 180.2 71.0
0.3 10.2 4.0 5.4 183.6 72.4
0.4 13.6 5.4 5.5 187.0 73.7
0.5 17.0 6.7 5.6 190.4 75.0
0.6 20.4 8.0 5.7 193.8 76.4
0.7 23.8 9.4 5.8 197.2 77.7
0.8 27.2 10.7 5.9 200.6 79.1
0.9 30.6 12.1 6.0 204.0 80.4
1.0 34.0 13.4 6.1 207.4 81.7
1.1 37.4 14.7 6.2 210.8 83.1
1.2 40.8 16.1 6.3 214.2 84.4
1.3 44.2 17.4 6.4 217.6 85.8
1.4 47.6 18.8 6.5 221.0 87.1
1.5 51.0 20.1 6.6 224.4 88.4
1.6 54.4 21.4 6.7 227.8 89.8
1.7 57.8 22.8 6.8 231.2 91.1
1.8 61.2 24.1 6.9 234.6 92.5
1.9 64.6 25.5 7.0 238.0 93.8
2.0 68.0 26.8 7.1 241.4 95.1
2.1 71.4 28.1 7.2 244.8 96.5
2.2 74.8 29.5 7.3 248.2 97.8
2.3 78.2 30.8 7.4 251.6 99.2
2.4 81.6 32.2 7.5 255.0 100.5
2.5 85.0 33.5 7.6 258.4 101.8
2.6 88.4 34.8 7.7 261.8 103.2
2.7 91.8 36.2 7.8 265.2 104.5
2.8 95.2 37.5 7.9 268.6 105.9
2.9 98.6 38.9 8.0 272.0 107.2
3.0 102.0 40.2 8.1 275.4 108.5
3.1 105.4 41.5 8.2 278.8 109.9
3.2 108.8 42.9 8.3 282.2 111.2
3.3 112.2 44.2 8.4 285.6 112.6
3.4 115.6 45.6 8.5 289.0 113.9
3.5 119.0 46.9 8.6 292.4 115.2
3.6 122.4 48.2 8.7 295.8 116.6
3.7 125.8 49.6 8.8 299.2 117.9
3.8 129.2 50.9 8.9 302.6 119.3
3.9 132.6 52.3 9.0 306.0 120.6
4.0 136.0 53.6 9.1 309.4 121.9
4.1 139.4 54.9 9.2 312.8 123.3
4.2 142.8 56.3 9.3 316.2 124.6
4.3 146.2 57.6 9.4 319.6 126.0
4.4 149.6 59.0 9.5 323.0 127.3
4.5 153.0 60.3 9.6 326.4 128.6
4.6 156.4 61.6 9.7 329.8 130.0
4.7 159.8 63.0 9.8 333.2 131.3
4.8 163.2 64.3 9.9 336.6 132.7
4.9 166.6 65.7
5.0 170.0 67.0