Best bitrate for online streaming (aka internet radio). Options

[uart]

I know that for most of us, as storage capacities have increased we've generally become less concerned about being economic with the bit rates of our encoded music formats. One area however where I"m still kinda interested in bit rate economy is when listening to internet streamed music such as "internet radio". The reason is simple, I've only got 10GB/month downloads and I'd prefer to not use more than about 30% of this for online listening, particularly as it's something that I'm often just using as "background" music.

With that said, what bit-rates to others here find suitable for online radio purposes. Personally I seem to find 64 kbps HE-AAC to be roughly equivalent to FM radio, though that's only a subjective judgement. Just wondering if anyone knew of any tests to establish what codec/bitrates are roughly equivalent FM radio for typical music listening purposes?

Thanks.

[IgorC]

Well, that 64 kbps test is already outdated. And Opus was actually pretty mature at that point.

Both Opus and HE-AAC encoders were improved.
http://www.hydrogenaudio.org/forums/index....st&p=796102
http://www.hydrogenaudio.org/forums/index....st&p=796836