Hi Lynfer,
I've never known of being able to hear any of the chakras, and it would be interesting to know if it were possible, but as far as the heart chakra goes, you can definitely feel it, in a few different ways.
Initially like with most energy work, you will feel a tingling sensation in the skin around the heart area, in both front and back, though I usually feel it more in front. When this chakra starts becoming active you will get a feeling like your heart is beating faster.
When the heart chakra really starts to get going that beating will turn into a vibration that will get stronger and faster. It feels like you've got a motor running inside your chest. It this point the vibrations do go into the audible range, so yes I suppose you can hear it then.
Hope this helps.
[:)]
James.
can anyone give me techniques for hearing the hart chakra, please?[:P]