View Full Version : Trouble reading FM broadcast SA

2007-02-18, 11:33 PM
This show came to me supposedly lossless. Can someone help me interpret the SA and FA? I know it's from an FM broadcast because there's promos, etc. on the recording, but I don't know enough about FM to tell if this is lossless or lossy. There's no blockiness but it looks clipped at about 16k. What are those 2 lines at 16k and 19k?

Also, can you tell by the analyses if it's a pre-FM source or if it was recorded from the broadcast?


2007-02-18, 11:53 PM
I have never seen an FM broadcast that had two stripes... normally only one stripe.

for sure it is not pre-fm, seems like its recorded from FM (with the extra stripe in there I-don't-know-how).

2007-02-21, 02:55 PM
The FA alone is enough to prove that it's not lossy.

I believe the extra stripe in the Spectral Analysis is from static. Does the recording have some radio "hiss" in it?

2007-02-21, 03:04 PM
That top line is a sign of a crappy sound card.

2007-02-21, 07:01 PM
Thanks for the info guys. This is such a great service here.

BTW, no radio "hiss" - the show sounds GREAT - I just thought the SA was odd.