where can I get it?!?
At low q-levels, there is very audible noise added.
However, at -q6 even with AoTuV r1, there is still (subtle) audible hiss, most clearly audible at around 22 seconds I think. The problem is present with all versions of oggenc I tested (1.0.1, 1.1.2 and Lancer's 20060903).
Your problem might be completely unrelated, but what your hearing is Noise Normalization if you are using less then a -q 3. If you have a pair of headphones on and are using -q 2 or below it's very noticeable.
If it's that bother some you can use the impulse_trigger_profile switch to see if it makes a difference or you can use it inconjunction with the impulse_noisetune.
Just a thought. It could very well be the recording too.
the_product.flac (working link)