





As you may know, listening to prolonged noise above 85dB will cause irreversible hearing damage and tinnitus (and as an audio engineer that's a no-no). I tested volumes using a decibel meter (honestly unsure if it's set to dBA or dBC, unfortunately), using mastered metal songs as my subjects, with my phone's Bluetooth setting set to full volume.
What I found was, with Spotify (set to normal volume on the in-app settings), 24 should be the highest volume you set your car system to. That averages out to 84dB, with some peaks up to 89dB, but those were brief. Being that both Spotify and YouTube Music normalize their music to -14LUFs, it's safe to say that 24 is a good max for YTM, as well. Apple Music, on the other hand, maxes out at -16LUFs, so you could probably safely push your system to 25 or 26.
The outlier here is if you listen to MP3s or WAVs directly off of your phone's music player. If the songs are mastered (IE brickwalled, with a limiter ceiling of -1dB), then these will be insanely loud. For you to achieve safe volumes with these you'll have to set your cars system to 18. That will, again, average out to 84dB.
All tests were done with my engine on, in idle (5.7 HEMI, no mods. Obviously cold air intake, or modding the muffler/exhaust system is going to affect over all dB). You also will want to turn off the Speed Adjusted Volume setting in the audio menu. That just cranks up the volume when you drive at higher speeds. Noise on top of noise...
So, assuming we all have the same radios/speakers:
Spotify and YouTube Music: 24
Apple Music: 26
Mastered music directly off of your device: 18
The Viofo A129 Pro Duo. The front facing camera can shoot in 4k, while the rear shoots in 1080P, with various settings for both. I have them set to record in 5 minute increments. They'll overwrite the oldest videos when memory runs short, and the current footage can be saved with a single button, or upon a high g-force impact. They can be set to motion detection mode while parked, assuming you leave it plugged in. The previous post showed the camera placement and cable management.
The Viofo A129 Pro Duo. The front facing camera can shoot in 4k, while the rear shoots in 1080P, with various settings for both. I have them set to record in 5 minute increments. They'll overwrite the oldest videos when memory runs short, and the current footage can be saved with a single button, or upon a high g-force impact. They can be set to motion detection mode while parked, assuming you leave it plugged in. The following post will have a short video demo.
Mainly to cover up the putty that's covering where the police antenna went.