Hi!
I put a finger between the cover flap when wrapping it to the back while talking.
But still: when using the corded head-set the SE came with, I feel the level of sound that gets delivered to the other side of the phone call is about 2-3 times as much compared to the internal microphone. Though I personally find the sound clear and OK when I test-phone myself.
I unwrapped the phone from its protective case, which often helps, but today not. This is why I called support, and they said I would have to do backup, factory default, best with itunes via usb, and do test calls in "naked state" without doing any apps or settings. Wow, what a waste of time.
Strange enough, when having the "huh?"-Problem, when I switch to loudspeaker, hands-free mode, they say they can hear me well enough.
As if some configuration is just set to a mic amplification level way to low.
It persists when doing updates of iOs.
Just call your answering "machine".
I use the box of my router, which is hooked-up via VOIP with HD quality codec, and itself records calls in a good quality, and offers me the files for download or email forwarding.
Just don't use one that compresses the audio to near nothingness like my cell provider does. You can hear a lot of compression artefacts when listening to mp3's of telekom (my provider) voice box recordings.
Do bla bla bla in the microphone with 6cm distance to the edge of your mouth, e.g., and then while talking plug in the apple headset your phone came with holding the cable in roughly the same distance to the edge of your mouth.
Again while talking unplug the headset after veryfying the distances of both mics to the edge of your mouth are the same.
Afterwards you can load the audio file in garageband or any other audio editor and search for the plug and unplug moment. Write down the times. Show it to tech or send email to apple documenting the sound.
I feel that the incident "muffled sound" for some people could be quite rare, so this would mean you have to have a flatrate and a answering machine that is quite well equiped with storage (fritzbox can use usb sticks 😉 ) and a lot of spare time to do a big bunch of monologues.
You could, more realistically, catch it when it happens: if the one your are talking to complains about muffled sound or way to low sound level, put him or she on hold and dial your voice box or answering machine number or that of a friend, and make a conference call. By this hopefully the real feedback can be recorded, which is way better than calling yourself, because you yourself do not have to do speech recognition or your test-bla-bla 😉
Look up what your provider charges for conferences beforehand, please.
I searched for some app to record the microphone while talking, but existing apps do not record mic directly, but rather make a conference automatically just in the same way you do manually, but want money for the service, which is ok if you don't have a voice mailbox available. (I.e., no one needs the service;)
Hope it helped.
Andi
