Noise chosen to hide reverberation (4)

I believe the answer is:

echo

'reverberation' is the definition.
('echo' can be a synonym of 'reverberation')

'noise chosen to hide' is the wordplay.
'to hide' indicates the answer is hidden within the clue.
'ECHO' is hidden within 'noise chosen'.

(Other definitions for echo that I've seen before include "Reflection of sound wave" , "The distant sound" , "Languishing nymph" , "Evocation" , "Reminder" .)

I've seen this clue in The Telegraph.

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