leq(m), leq dba,leq dbc, k-system (k-20, k-14, k-12) by bob katz , level meter norm > din45406, level meter norm > nordic n9, # level meter norm > bbc ppm, level meter norm > ebu ppm, integration time from none up to 300ms, referenz level 0 dbfs and -18 dbfs, note detector, dbfs and rms peak level meter, weighting filters db(a), db(b) and db(c), 1/3, 1/6, 1/12, 1/24 octave displaying of the spectrum,