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[Discuss-gnuradio] gr.pwr_squelch_ff committed to CVS
From: |
Johnathan Corgan |
Subject: |
[Discuss-gnuradio] gr.pwr_squelch_ff committed to CVS |
Date: |
Sun, 18 Jun 2006 12:30:48 -0700 |
User-agent: |
Thunderbird 1.5.0.2 (X11/20060522) |
Johnathan Corgan wrote:
> Per the discussion in a previous thread the first of the new squelch
> blocks has been committed:
>
> gr.pwr_squelch_cc(threshold, alpha=1e-3, ramp=0, gate=False)
>
> threshold is the power in db to set the threshold.
>
> alpha is the power filter iir tap, defaulting to 1e-3
>
> ramp is the number of samples over which to apply a raised cosine window
> when turning on or off squelch, defaulting to 0 (no windowing)
>
> gate determines whether the block outputs zeros when power is below the
> threshold or nothing at all, defaulting to outputting zeros (False)
The float input/output version of the power squelch block has been
committed. This is suitable as a silence eliminator for audio streams,
by enabling the 'gate' parameter.
-Johnathan, AE6HO