Hello friends,

I have settled 6.4 and 6.5 versions to my Zgemma H7S.
Everything is okey but at some channels when ac3 sound format is chosen a suden noise rise happens like sound boom.
Even I turned down the voice it happen again when I come back the same channel.It is vert troubling.
I tried to do something on voice menus but could not prevent this.

What can I do to prevent this problem?
Thanks.

There is not a specific channel.
It is happening all channels at which audio is AC3 formats.
No problem having MPEG audio formats.

Default audio level is high and even I turn down the audio level at that channel and come back again the same channel nothing changes.Sound again at high level. I attach sample pictures of two different channels having AC3 tracks at high level automatically.

I have settled the problem leaving using HDF image and installing OpenATV plus egami images together.