校了 05 新型CX-5 BOSE プレミアムサウンドの開発

1 25 2017 CX-5 5 1 5 6 Integrated Control System Development Div. bose Automotive Electrical & Electronics Development Dept. CX-5 bose Development of bose Premium Sound for All-New CX-5 CX-5 bose bose CX-5 10 A 8 CX-5 130mm EQ EQ AUDIOPILOT2 Centerpoint Surround Technology bose CX-5 bose

2 Summary The bose sound system for all-new CX-5 features ten speakers while the previous system uses nine speakers. Collaborating with bose from the early development phase, we overcame the issues of first generation CX-5 and realized advanced Mazda Sound . It is achieved by optimized system configuration and speaker layout. Newly designed Silkdome tweeter on A-pillar delivers delicacy of high tone in the much quieter car cabin. The bass box, also newly designed, with 130mm woofer in 8 litter volume reproduces deep, powerful bass sound throughout the cabin.

3 The digital equalization (EQ) amplifier provides separate EQ parameters for leather and cloth seat surfaces. It also features two very convenient features: AUDIOPILOT Noise Compensation Technology and Centerpoint Surround Technology. You can enjoy virtual surround sound with Centerpoint with most music sources. With all these features, the system reproduces very clear sound close to live concert experience at all seats. This Mazda sound is realized by acoustic tuning with bose engineers at development phase. This paper introduces the main features of all-new CX-5 bose sound system and its technology outlines.

4 1 1. CX-5 bose CX-5 9 CX-5 EQ 10 1 2 Yuuhei FuruseTakayoshi Nishijima 3 4 5 Yoshihiro TeshimaDaiji SatoKoji Wakamatsu Atsushi Hinokidani 6 26 2017 2 2. CX-5 bose Fig. 1 Fig. 2 1 80mm 2 25mm 2 165mm 2 130mm 2 60mm 130mm 10 7EQ AUDIOPILOT Mazda Connect Fig.

5 1 bose Sound System for New CX-5 80mm 25mm A 165mm 25mm 130mm 60mm D 130mm 60Hz CX-5 8 CAE 7mm 7EQ DSP Digital Signal Processor 7EQ AUDIOPILOT2 Centerpoint Surround Technology Fig.

6 2 bose Sound System Components 3. CX-5 CX-5 3 27 2017 60Hz 130mm Fig. 3 CX-5 CX-5 Fig. 3 Front Door Vibration 4kHz Fig.

7 4 A Fig. 4 Frequency Response Comparison between New Tweeter and Previous Tweeter CX-5 A A

8 bose Fig. 5 A Fig. 5 Appearance of A-Pillar Tweeter 3k 4k 5k 6k 7k 8k 9k 10k20k-15-10-505 Frequency (hertz)dBReference: New designed tweeter 0246810121420406080100 120 140 160 180 200 CX-5 CX-5 Acceleration m/s2 Frequency (hertz) New CX-5 Original CX-5 28 2017 4 4. CX-5 EQ EQ Fig.

9 6 Fig. 6 Frequency Response Comparison between Cloth and Leather Seats EQ bose CX-5 EQ 5. CX-5 bose CX-5 bose bose AUDIOPILOT Centerpoint bose 102103104-10-8-6-4-2024 Frequency (hertz)dBReference: Leather rear door speakers