# Re: Write I/Q to WAV file

**URL:** <https://www.ruby-forum.com/t/re-write-i-q-to-wav-file/238764>\
**Category:** GNU Radio\
**Created:** [January 28, 2014, 1:28am UTC](https://www.ruby-forum.com/t/re-write-i-q-to-wav-file/238764 "2014-01-28T01:28:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\
**Post date:** [January 28, 2014, 1:28am UTC](https://www.ruby-forum.com/t/re-write-i-q-to-wav-file/238764/1 "2014-01-28T01:28:24Z")

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Well it indeed appears to be my graph. Tried using a simple graph.

Signal Source (32k) \> Complex - Float \> WAV

Dream decoded it, SDR# read it, and it was fine.  
My graph of interest must have a sample-rate no lower than 360k. It  
appears  
to be recording something, but its almost as if it is recording the  
samples  
too quickly?

Here is a screenshot of the graph if it helps any.  
[https://lh6.googleusercontent.com/-aSbYCHxTFFk/Uub13Q-yoVI/AAAAAAAAqng/i3lBhqzp4TE/w915-h477-no/Screenshot+-+01272014+-+04%253A11%253A38+PM.png](https://lh6.googleusercontent.com/-aSbYCHxTFFk/Uub13Q-yoVI/AAAAAAAAqng/i3lBhqzp4TE/w915-h477-no/Screenshot+-+01272014+-+04%253A11%253A38+PM.png)

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**Author:** ![jowijo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e95f7d/32.png) [@jowijo](https://www.ruby-forum.com/u/jowijo)\
**Post date:** [January 28, 2014, 9:52am UTC](https://www.ruby-forum.com/t/re-write-i-q-to-wav-file/238764/2 "2014-01-28T09:52:31Z")

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On 01/28/2014 01:26 AM, Jordan J. wrote:

> Well it indeed appears to be my graph. Tried using a simple graph.
> 
> Signal Source (32k) \> Complex - Float \> WAV

Jordan,

this is a common use case for WAV files, actually. What you do is you  
split the complex signal and pass the I part to one channel and Q to the  
other (I think the convention was I → R, but I might be mistaken. IIRC,  
DREAM lets you configure this anyhow). So you get a “stereo” WAV file.

MB
