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2011 Scion xB Release Series 8.0 SoundWave
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Discussion Starter · #1 ·
This is a thread I am creating for the purpose of sharing installation tips I use for installing bluetooth systems in cars. I am considered in my field to know what I'm talking about, got them snowed!!!

Poor audio quality

Typically poor audio quality is caused on all bluetooth installed devices by talking too loudly into the device. From time to time my wife catches me doing this and tells me to talk in a lower tone than I would in a conversation. With our kits, our dsp like that of others will ignore higher tones as it believes it to be road noise. So by simply speaking in a lower tone this eliminates many of the issues related to poor audio on the other end.
Another cause is in regards to where the microphone is located. Mic location is everything, I always install the mic by the rearview mirror, but not attached to the windshield or the rearview mirror. Most of the time when people on the other end complain of a whistling sound or excessive noise though the callers actual voice sounds ok and not garbled or cut off. The mic is mounted too closely to the driver window on or near the A-pillar or on the windshield. This can best be tested by moving the mic and simply dangling it from the visor or the rearview mirror. If for whatever reason there is not enough slack in the microphone cord to reach the rearview mirror area. Some customers have had limited success mounting the microphone in the instrument cluster, but not mounted to the steering wheel column in any way at all!! The steeringwheel column choice will pickup all road noise and then your back to square 1. Note: in any location suggested above there may be added noise when using the windshield defroster or the a/c. It is always suggested to mount the mic in locations where there is the least amount of air movement.


Echo across receiving end.

Typically when this happens it has to do with 1 of 3 things. 1) The caller or the senders phone is in a bad area, 2) the microphone is installed in a bad location like near the windshield or on a hard surface and 3) the black brain box is in a poorly shielded area near the ECU, radio or heavy electrical wires. It may best be tested with the black brain placed further away from the radio or ECU type boxes like the BCM or the likes of it.
 

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hmm, i usually put them somewhere near the A-pillar or attached to the headliner like right in front of the visor. never heard of any issues. i put them there just for the simplicity of some cars. never thought of putting them like in the cluster. its usally attached to either the clarion head units or pioneer avic's never had to install like a standalone parrot unit or anything. what units are you talking about when your say "our"?
 

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Toyota's Bluetooth instructions for the xB say to mount the mic on the instrument panel. They pull the 4-gauge garnish right above the center vents, poke a hole in the garnish, and route the mic wire there. Personally I think the rear view mirror area, or on the headliner in front of the driver, or in the overhead console makes more sense for a mic location, but they are longer and slightly more involved (into the A-pillar) wire runs.
 

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2011 Scion xB Release Series 8.0 SoundWave
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Discussion Starter · #5 ·
hmm, i usually put them somewhere near the A-pillar or attached to the headliner like right in front of the visor. never heard of any issues. i put them there just for the simplicity of some cars. never thought of putting them like in the cluster. its usally attached to either the clarion head units or pioneer avic's never had to install like a standalone parrot unit or anything. what units are you talking about when your say "our"?
About my credentials:
I am the Director of Technical Support for Ego Handsfree USA
Done installations for Car & Driver Magazine
Done installations for Toyota Motors Corp Accessories Division
Installation training for Parrot USA in Southfield Michigan
Technical Support for Parrot at CES
Technical Support for DrivenTalk at SEMA
17 yrs installation experience
10 yrs sales of High End home A/V and 12 Volt
4 yrs Technical Support experience
MECP Certifified
RTTI Certified
JL Audio Certified
Parrot CIP certified
Member of Consumer Electronics Association


Chances are I may have some things to mention. By the way TMI/Vizual Logic told Toyota where to place the microphones and it was based soley on the type of mic they use in that Chinese made kit. Scott West was the Chief product designer for the original CIG Blue kit that morphed into the Blue Logic piece.
 

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lol, i wasnt saying that you werent qualified in saying what you were saying, i remember another thread you had mentioned that you were a manufacturer of a product (i forget now what it was that was being talked about or what the context was) but i was wondering what the product was. when you said our product i figgered that was it. as a retailer im always looking for new products to offer. although that is a long list of credentials lol
 

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2011 Scion xB Release Series 8.0 SoundWave
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746 Posts
Discussion Starter · #7 ·
I get call from Parrot, Bury, Ego, DrivenTalk and others coplaining about people can't hear them well on the other end or they can't be understood. Alot of this is to do with the mic mounted too closely to the driver roll down window or it was mounted on the windshield. Some customers think that this is just how kits sound. I sell our Ego Microphones to customers and stereo shops that use them instead of the crappy China made ones that Alpine, Kenwood, Pioneer, Clarion and others use.
 
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