Quote:
Originally Posted by darklife
... However a poorly designed transmitter will sometimes have a tiny bit of frequency modulation on its carrier signal, or in other words it's frequency will vary slightly with the audio program material especially on bass notes or high peaks of modulation. It's only a few tens to hundreds of hertz but that is enough to become a wobbly whining sound when demodulated by your radio.
|
If that transmitter was being fed by Sirius or an MP3 player, some of that wobbly whiney wishy washy sound may be due to overly compressed digital audio. I had a rental car with Sirius satellite radio, and though Howard Stern sounded fine, all music channels on Sirius sounded like crap. It was a Ford Focus, so maybe it was a crappy decoder. But if all possible decoders sound that way, I won't subscribe to Sirius. XM didn't seem to have this problem in another rental car I had years ago.