Poor audio quality when streaming from 4s

if i play tv programe on iPhone, the audio is ok, when i airplay to ATV some of the audio is muffled. any ideas what is causing this? I have switched sound check off.

Welcome to the Apple Community.
It might be a network issue. How far are all the devices from the router. Do you experience interference.
Interference can be caused by other networks in the neighbourhood or from household electrical items.
You can download and install iStumbler to help you see which channels are used by neighbouring networks so that you can avoid them, but iStumbler will not see household items.
Refer to your router manual for instructions on changing your wifi channel.
Have you tied restarting both devices.

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Message was edited by: Sheryl Kingstone

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Poor audio quality when streaming from 4s

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