iPhone 4 settings for iStethoscope Pro
I’ve now got an iPhone 4 and tested my app iStethoscope Pro with the new device. The good news is that it works fine and the microphone may be more sensitive, so it may be even easier to hear your heartbeat with the new device. The bad news is that the frequency response of the iPhone 4 microphone appears to be slightly different to that of the iPhone 3G, so there is less detail at the very low frequencies and more noise at higher frequencies. Do please note that the location of the microphone is different in the iPhone 4 - it is on the bottom left, not on the bottom right!
Because the iPhone 4 has a different microphone and casing, it is necessary to modify the audio filter settings in order to hear the clearest heart sounds. My suggestion is:
Use Heartbeat pure mode and in the Audio Settings change to
Alpha value (default 150) = 125
Amplification (default 0.25) = 1
In General, scroll down and change Spectrogram scaling to
Heartbeat pure (default 0.5) = 0.3
As usual you can find the detailed help pages here and here. If you have your own suggestions for settings for the iPhone 4, leave a comment here. Otherwise if you have any problems, please leave your comments on the main support page as usual.
Stephanie (October 19, 2012 10:44 PM):
Palmer Thongwa (February 24, 2012 11:06 AM):
After reading all the posts and replies on your web site, I am feeling very reluctant to even begin trying to use the program, fearing failure and further disappointment.
Can you say authoritatively, it will work or it will not work with my equipment?
Thanks.
Mr M Ferati (February 22, 2012 6:32 PM):
Serdar (November 26, 2011 11:04 AM):
Peter Bentley (June 25, 2011 12:26 PM):
TONY LEDUE (May 26, 2011 9:24 AM):
Ghaith (November 12, 2010 8:36 AM):
Tarkan (September 12, 2010 3:22 PM):
Peter Bentley (September 10, 2010 10:40 PM):
Michel Arnould (September 9, 2010 4:44 PM):
Peter Bentley (September 4, 2010 11:39 PM):
William Bass (September 4, 2010 10:40 PM):
Peter Bentley (September 4, 2010 6:57 PM):
Annette (September 4, 2010 11:58 AM):
Annette
Steve (September 4, 2010 7:35 AM):
Peter Bentley (September 2, 2010 9:20 AM):
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Debbie (September 1, 2010 6:26 PM):
M Wong (September 1, 2010 2:34 PM):
Victor Lopez-Cepero (September 1, 2010 12:28 AM):