Low frequency audio level detector using PIC ADC?

[HankMcSpank]

Eeek, even a little bit of code like this....

main:
    toggle PortC.4   'pin 6
    'count1 = count1 +1 
    present_sample = ADRESH
    IF  present_sample < 128 then 
    present_sample = (127 - present_sample)
    else 
    present_sample = present_sample -128
    endif

    IF present_sample >= rolling_peak THEN
    rolling_peak = present_sample
    else
    if count1 =  50 and rolling_peak !=0 then   
    rolling_peak = rolling_peak -1       
    count1 = 0
    endif
    endif
    goto main

is only toggling at 16khz - meaning that the main loop is only running at 30khz ...gulp (that's not leaving much room for anything else) bearing in mind I only have a 20khz sample rate going on...I wish the 16f1828 didn't have the ADC iissue about 8Mhz internal clock, becuase the obvious way of winning back por main loop time is to crank the internal clock up.