music playback software audio leveling

[acarroll123]

I have many cds that have been transferred to an external hard drive. I want to compile a playlist that can be played via usb in my car. The problem is that the audio levels transferred to the usb are all over the place when played in my vehicle. While my online research has led to many music playback software programs (including: "6 Free Software Every Audiophile Should Download" by Cliff Heyne at Audioholics - 2013), none mention if they can 'equalize' or set a standard audio level when transferring the playlist to an external (usb) drive. Can someone suggest a transfer software/program that can set/establish a playback level on playlist when transferred to a usb?
Any and all suggestions will be greatly appreciated.
Thank you

 

[lovinthehd]

What head unit, it doesn't have such a feature?

 

[acarroll123]

"Head unit"? Am unfamiliar with that. The external hard drive is connected to a MacMini computer (as server). Using Plex and JRiver for playback through Marantz electronics. Please advise further. Thank you

 

[lovinthehd]

"Head unit"? Am unfamiliar with that. The external hard drive is connected to a MacMini computer (as server). Using Plex and JRiver for playback through Marantz electronics. Please advise further. Thank you

Head unit is basically your receiver/processor in your car's audio system....You run a Mac in the car?

 

[acarroll123]

No, I do not 'run a Mac in the car'. The unit is a standard Nissan system with Bose speakers. Don't know the "name/brand" of the 'head unit' in the car.

 

[lovinthehd]

No, I do not 'run a Mac in the car'. The unit is a standard Nissan system with Bose speakers. Don't know the "name/brand" of the 'head unit' in the car.

It's a custom unit, hard to know whose then (Bose maybe which isn't encouraging). Some still have a feature for balancing loudness among different tracks....

 

[acarroll123]

Will check the unit and manual tomorrow morning and let you know. Appreciate your interest, concern and replies. Thank you