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Mad Scientist Jr
 
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Default drop-outs in recording full-duplex audio on iPAQ 36xx pocket pc?

Has anyone tried recording full-duplex audio on their iPAQ and had any
problems with dropouts or small gaps in the recording, every 1 or 2
seconds?

Is this due to inefficient code, hardware limitations, or what?

see the code posted in

http://www.opennetcf.org/forums/topic.asp?TOPIC_ID=2410
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Mad Scientist Jr
 
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Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments) and fill them in by interpolating the
samples directly before & after?
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Mad Scientist Jr
 
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Default

Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments) and fill them in by interpolating the
samples directly before & after?
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Michael R. Kesti
 
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Mad Scientist Jr wrote:

Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments)


Yes, although it may be difficult to distinguish between drop-outs and
segments that are intentionally silent.

and fill them in by interpolating the
samples directly before & after?


This will probably not be a satisfactory approach if more than one or two
samples are "missing".

--
================================================== ======================
Michael Kesti | "And like, one and one don't make
| two, one and one make one."
| - The Who, Bargain
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Michael R. Kesti
 
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Default

Mad Scientist Jr wrote:

Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments)


Yes, although it may be difficult to distinguish between drop-outs and
segments that are intentionally silent.

and fill them in by interpolating the
samples directly before & after?


This will probably not be a satisfactory approach if more than one or two
samples are "missing".

--
================================================== ======================
Michael Kesti | "And like, one and one don't make
| two, one and one make one."
| - The Who, Bargain


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Mad Scientist Jr
 
Posts: n/a
Default

Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments)

Yes, although it may be difficult to distinguish between drop-outs and
segments that are intentionally silent.
and fill them in by interpolating the
samples directly before & after?

This will probably not be a satisfactory approach if more than one or two
samples are "missing".


True, especially for short quick sounds that would be completely
missing.

I am not sure but I am getting dropouts trying to record full-duplex
(while playing back a different mono sound with headphones) on my
Pocket PC (iPAQ 3650) using Smart Device Framework 1.1 (opennetcf.org)
  #7   Report Post  
Mad Scientist Jr
 
Posts: n/a
Default

Is it possible to programatically scan a WAV file for drop-outs
(completely empty segments)

Yes, although it may be difficult to distinguish between drop-outs and
segments that are intentionally silent.
and fill them in by interpolating the
samples directly before & after?

This will probably not be a satisfactory approach if more than one or two
samples are "missing".


True, especially for short quick sounds that would be completely
missing.

I am not sure but I am getting dropouts trying to record full-duplex
(while playing back a different mono sound with headphones) on my
Pocket PC (iPAQ 3650) using Smart Device Framework 1.1 (opennetcf.org)
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