Possible ways to end speaker feedback, echo

After I got my iPhone 5 (white, 64 GB, iOS 6) several weeks ago, I was surprised when others said my voice sounded muffly and they were experiencing feedback and echo. When I put them on my speaker, their voices sounded tinny and harsh. Turning down the volume helped, but didn't eliminate the problem.
After some research, I changed several things on my iPhone 5. All is working perfectly now. No feedback. No echo. Incoming speaker voices are normal and clear.
FIRST: in Settings > Music > Volume Limit > on > adjust to about 3/4 of max.
SECOND: I took off my TPU case and put on a shell. Reason: Research brought out the concept of feedback caused by cupping the hand over the speaker/mic area so sound would transfer from one to the other.  Most cases surround the lower speaker/mic area with up to about 1/8 inch-deep of case material. This, I thought, might do the same as the cupped-hand phenomena, especially since the speaker and mic are considerably larger - and closer together - than on earlier iPhones.
THIRD: I make sure the volume is set so the speaker voice sounds normal for incoming calls. Before, it was tinny, scratchy and harsh - hard to listen to. Seems to be working.

dolby wrote:
This is (sort of) what Frugalware does. I bet that command you wrote doesnt work for all packages. I bet it doesnt work for most of them actually.
I dont like this because its not guaranteed to work for "ever" and maintaining such scripts is a waste of time.
Furthermore, many packages just announce new releases. On mailing lists, sourceforge, freshmeat etc
On one hand, it is time-consuming to fix a script and even more annoying to find out that it broke down for some stupid reason.
but on the other hand we'd have to consider how much we'd gain from that. I am not sure whether it is worth it, since i am not a package maintainer, but i bet someone like Jan de Groot who is maintaining almost a thousand packages might find that handy.
The point with the mailing lists and freshmeat and sourceforge and stuff is that unfortunately it just sucks to assemble all this information along with all the crap you don't actually like to have. there are some projects which have a low-traffic, release only mailing list, but unfortunately not all of them do
hm,
anyway, cheers
Barde

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