You might be interested in these threads:
Prom 1 - HD Sound Severely Limited/Clipped
BBC Reply to complaint about limiting on Prom 1 sound
The excessing limiting (during the music only) was almost certainly a test run for the Havergal Brian Prom a few days later, where the same thing happened.
Thank you for pointing this out - I hadn't been aware of either thread. Depressing that the BBC should be incompetent and/or disingenuous in their response (when the facts are undeniable from the various dB graphs). I assume no further response has been received from the BBC on this?
Originally Posted by johnb
Sorry Elion, somehow I missed you email and message at the time. I have just found and read it. I think it might be useful for you to post the comments on the aac codec and the levels it 'expects' to deal with here. I was certainly not aware of the important issues you raised in that message. I would be most grateful if you were able to reference the information. It appears to be something that the iPlayer team need to be challenged on.
Originally Posted by Elion