Yes, I was using the shift control.  I reverted back to 4.17 and all is ok 
again.

Dale, k9vuj



On 06, Nov 2010, at 8:22, Nate Bargmann wrote:

> * On 2010 06 Nov 06:15 -0500, dalej wrote:
>> I just loaded this beta version 4.18 and now I get loud crackling from the 
>> speaker when tuning though the APF filter, also, the audio goes away.  I 
>> uploaded the firmware though the P3 twice, once power on P3 and the second 
>> time power off with the same results.  I will next try loading the firmware 
>> directly into the K3.  If I have the same result, I will then revert back to 
>> the previous version, beta 4.17, which worked fine including the power out.  
> 
> I take it you are tuning the APF with the SHIFT control?
> 
> Ouch!  I just replicated your issue on my K3!  Once I tuned the APF
> above 1 kHz the crackling begins.  During this time the APF function
> disappears and with each step on the display a loud CRACK! is heard in
> the speaker.  Once I tune the APF below 270 Hz the CRACK! goes away and
> the APF is restored. 
> 
> At 1 kHz I hear a loud POP! and then the CRACK! occurs for each step as 
> the knob is advanced to the right although the displayed APF frequency
> remains at 1 kHz.  At 270 Hz I hear a BOOP! and APF is restored.  I've
> done this several times as I've typed this message.  When the APF is in
> the crackle mode, turning it off and then on does not change the crackle
> state, in fact more crackle is heard upon reactivation.  Powering off
> the K3 while in "crackle" mode kills the crackle and APF resumes its
> function.
> 
> I am running MCU 4.18, DSP 2.67, and FPF 1.14 on K3 #4762.
> 
> HTH,
> 
> 73, de Nate >>
> 
> -- 
> 
> "The optimist proclaims that we live in the best of all
> possible worlds.  The pessimist fears this is true."
> 
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