Play audio over an active phone call, so other end can hear it

by jsdf » Sat, 08 Aug 2009 00:27:02 GMT


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 Hi everyone,

Is it possible to play audio over an active phone call, so the other
end can hear it?

For example:
A and B are talking on the phone.
A presses a button that pulls audio from a resource and plays it over
the phone call to B.

If so, what libraries should I look into?

If not, is this something that could become accessible on rooted
phones? (Of course, only other rooted phones would be able to use the
application then...)

Thanks,
jsdf
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Play audio over an active phone call, so other end can hear it

by jsdf » Sat, 08 Aug 2009 19:45:19 GMT


 Marco,
Just to clarify,
The sticking points could be:
1.) hardware design doesn't support it
2.) framework software that integrates Android onto specific phones
doesn't allow it
3.) Android doesn't support it

I definitely see #3 as true.  Does your comment below indicate #1, #2,
or both #1 and #2 are true?
Thanks for the help,
jsdf





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Play audio over an active phone call, so other end can hear it

by tcp » Thu, 20 Aug 2009 23:39:52 GMT


 jsdf -

Did you find an answer to this question somewhere?

It is related to one of my own which is, can I write my own phone app?

It would seem odd if there was no _possible_ programmatic interface to
the audio streams (which would also preclude what I'm trying to do)
because, even if the audio codecs are on the CPU (which I believe is
the case in G1/ADP-land) somehow those data need to get to/from
speakers/mics which are programmatically accessible.

I'm poking around in com.android.internal.telephony for my stuff and
will be trying some tests in the coming week or so.  I'll post
anything of interest here.

All comments are welcome.

Thanks,
- tcp






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Play audio over an active phone call, so other end can hear it

by jsdf » Sun, 30 Aug 2009 03:59:43 GMT


 tcp,
No, I haven't been able to find anything. Looks like it was either
overlooked or intentionally decided against.
jdsf

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Play audio over an active phone call, so other end can hear it

by Josh » Thu, 10 Sep 2009 09:09:33 GMT


 have you figured out how to do this?






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