I'm going to do my first film and I have a question on how to make songs sound like it's coming out of a car radio. It doesn't have to be surround, I just want to know what eq setting or bit crushing setting I would use.
I was thinking of taking out the low's and some of the highs, boost the middle slightly, and then downsize the bit rate maybe to 12 or 8.
Reducing the bit rate to 8 or 10bit will not make it sound like a car radio, it will make it sound like an old computer sound file.
Are we talking vintage cars or newer cars? Rolling off the lows (start around 100Hz) and the highs (around 10K-ish) will get you close. You may want to run the audio through another compressor to squash it a little bit more. Actually, anything mastered in the last ten years is likely to have been squashed to death already, but with older stuff (say mid 90's and back) there's still a bit of room left.