Hi Ian,

I doubt it's relevant, but you'll find the "use compact voice" option under 
settings->General->accessibility->voiceover.  The compact voice is of lower 
quality, but the trade-off is that it will place less of a demand on system 
resources.

Absent any kind of specifics in your problem scenario I can only venture to 
guess at a few possibilities.

Sometimes the speaker volume winds up at the lowest possible setting.  This 
could be as a result of human action such as having the phone in your pocket 
and the volume down button is pressed repeatedly.  I also believe that an IOS 
bug causes this.  For example, pulling my phone out of a dock some times 
results in the loss of volume, or some times it seems to happen for no 
discernible reason.  To resolve this I'll take some action or gesture which 
should cause the speaker to emit output such as telling Siri to play music.  
Then holding the volume button should have an affect, which is not the case 
when there is no active sound output.  If you hear the music, but not vo, try 
toggling it via the tripleClickHome gesture, or if that doesn't bring results 
press the power button eight times quickly to reinitialize.

If you still get nothing other than ringtones emitted from your speaker, you 
may have a dust particle caught in the headphone jack causing the microswitch 
to remain open and consequently your hardware behaves as though headphones are 
connected regardless.  When this occurs, you can usually dislodge the 
obstruction by inserting and withdrawing headphones into your jack about ten 
times quickly.  A vacuum or canned air would also work.

The above two problems are not specific to any particular IOS device or 
firmware level.  Since I got my 4S, however, I've been experiencing an annoying 
intermittent/unreproducable problem that comes in two flavors.  Since my 
hardware and firmware upgrades occurred simultaneously I can't say whether this 
is specific to the 4S, or if others running IOS5 are seeing this.  The two 
others I know of who are experiencing the problem also use a 4S on the AT&T 
network, so perhaps the carrier/sim card is a factor?  I donno!  Anyway, what 
happens is that I answer a call and can hear/speak to my party for a second or 
two.  Then we both go mute for about ten to fifteen seconds.  If the person is 
not a regular caller, they'll likely assume the call was dropped and hang up.  
After the long pause, all goes back to normal.

The second incarnation is that I do not hear my party, and in fact discover 
that my phone appears to be completely turned off since activating the mute 
switch does not cause any vibration.  Pressing the power button has no affect, 
nor does the hard boot sequence (press and hold home and power for ten 
seconds).  My phone becomes a paperweight for about ten minutes, after which I 
can power it on and the functionality returns to normal.

I have not reported this to Apple because I cannot provide a scenario.  I 
recall Sarah A once described how to capture log files, but this problem does 
not appear to generate a log entry.  A friend contacted Apple and in typical 
fashion, they denied everything and replaced the phone which still has the same 
issue.

So, if you're problem is not covered by the above, perhaps you could post a 
detailed description with a helpful subject line and we'll be glad to help.

Best regards.
Geoff


----- Original Message ----- 
  From: Ian McNamara 
  To: Mac OSX & iOS Accessibility 
  Sent: Thursday, February 02, 2012 9:55 AM
  Subject: Re: iphone 4s problem.


  Hi how do i change to compact voice?

  Ian McNamara
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