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Re: [Discuss-gnuradio] Help Needed: ValueError: itemsize mismatch: audio

From: Johnathan Corgan
Subject: Re: [Discuss-gnuradio] Help Needed: ValueError: itemsize mismatch: audio_alsa_source(1):0 using 4, flex_demod(2):0 using 8
Date: Fri, 11 Apr 2008 08:55:24 -0700

On Thu, Apr 10, 2008 at 6:07 PM, Darryl Ross <address@hidden> wrote:

> >        slicer = pager_swig.slicer_fb(5e-6)

The slicer block is expecting a floating point value from -3.0 to 3.0.
 Normally, this is the audio from an FM demodulator block that has the
deviation set so the output is in this range.  In your case, you'll
have to adjust your audio amplitude to match.  You could do this with
an AGC block, or use a scaling multiplier and set your volume control
just so.

Johnathan Corgan
Corgan Enterprises LLC

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