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Re: [Discuss-gnuradio] Basic Microphone Integration

From: Richard Bell
Subject: Re: [Discuss-gnuradio] Basic Microphone Integration
Date: Tue, 24 Mar 2015 17:24:41 -0700

Thanks Martin, got it.


On Tue, Mar 24, 2015 at 4:43 PM, Martin Braun <address@hidden> wrote:
The audio sinks do that; you might have to use your OS's mixer settings for selecting the mic.

The audio sink/source are like the UHD blocks in that you pipe in floats, and 1 maps to FS. So keep your abs value below 1 and you're good.

gr-audio has some examples for you to peruse.


On 24.03.2015 16:32, Richard Bell wrote:
Hi all,

I've got my packet based radio working now, so I want to test it by
talking into a mic on the transmitter laptop and playing the stream on
the speakers of the receiver laptop.

I realized I don't know how to integrate the audio sink floating point
output of the mic to my byte based radio input. I assume there is an
encoder that handles this transition, but I'm not familiar with audio
streaming at all.

How should I integrate the mic at the transmitter side and the speakers
at the receiver side?

I looked for an example online but didn't find anything. I thought there
was a tutorial at one point on this but maybe I'm wrong.


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