discovery 3 noise

Hi chaps, could anyone identify this noise ?

LR 3 - 2.7 auto (160k on the clock)
i have a very similar noise to the link, it occurs between gears 1-4 when you take your foot off the accelerator at around (1500rpm upwards), in gears 5 + 6 the noise is constant regardless of throttle/revs.
gear change is smooth, no signs of slippage or over revving + no noise occurs in park, neutral & reverse.

noisy torque converter possibly ? , any ideas ?

Welcome to the forum

Yer be betterer to post yer technical question int disco section over ere:

https://www.landyzone.co.uk/forum/land-rover-discovery.8/

Welcome. Before we go any further, not all members are 'chaps'.
That cleared up, you're more likely to get help by posting your issue in ghe Disco section. Good luck.