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Active Noise Control (ANC) - Retrofit 2019 Titanium ?


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  • 1004ron changed the title to Active Noise Control (ANC) - Retrofit 2019 Titanium ?

ANC (if equipped)

 

ANC is an audio system feature that reduces the level of occasional low frequency engine noises which compete with audio system playback. The system uses 3 microphones, the DACMC (integrated into the ACM) and the audio system speakers.

 

The ANC feature reduces the level of occasional low frequency engine noise which competes with audio system playback.

 

The DACMC, built in to the ACM, determines the noise frequency to be canceled from the sound present inside the vehicle and by using engine data from the PCM.

 

While the engine is running, the ANC microphones monitor undesired noise in the passenger compartment. The microphones transmit this noise as analog signals to the DACMC inside the ACM. The signals are processed to create an inverted phase sound wave with the same amplitude as the original sound. This noise-canceling sound created by the DACMC is transmitted internally to the ACM outputs and externally to the DSP. The final output by the ACM and the DSP is sent as fluctuating AC voltage to the speakers.

 

ANC Microphones

 

The ANC microphones are connected to the DACMC, integrated into the ACM

 

ACM

 

For vehicles equipped with the ANC, the ACM contains the DACMC. The DACMC carries out noise canceling to reduce cabin noise.

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In principle, the work of implementing them is not as difficult as it seems. First, you need to lower the ceiling. Next, the locations for installing the microphones are marked, holes are drilled in the ceiling and the microphones are installed.Next, the wiring from the microphones to the audio module is made and everything is put back together. Of course, you need to edit the configuration later.cG8xBGUpBavBh4uY-81j1xjdCN4-960.jpg.451821ab971412e4d7258214d27f1684.jpg0YhqMWh-2cUEEgNhGu0sJkEdlHQ-960.jpg.417d40f26862e5fd8d9dd77ca19ae232.jpg 3NxCyluAiakrktCe791qLy-fGeY-960.jpg.b1499947cdbf7b5e814f113b6aef5463.jpg

Edited by Iroga
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6 hours ago, Wubster100 said:

Nice work. Have you tried it out yet? Does it sound quieter? Are your seats removed in the photo?

This is not on my car. This was done recently for a friend. I am assembling the complete set. I still need to braid the wiring. No. The seats were not removed. The rear ones are folded, the front backrests are reclined as far back as possible. Once I do it completely, I will show you and share my impressions.

Edited by Iroga
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