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.
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.
