sig@debian:~$ ecasignalview -f:16,2,44100 /dev/dsp1 null

(audiofx) -- Amplitude statistics -----------------------------
Range, pos/neg, count,(%), ch1...n
Pos   -1.0 dB:   0,0.00%                 0,0.00%
Pos   -2.0 dB:   0,0.00%                 0,0.00%
Pos   -4.0 dB:   47,0.00%                20,0.00%
Pos   -8.0 dB:   13221,1.01%             6771,0.52%
Pos  -16.0 dB:   211236,16.07%           189655,14.43%
Pos  -32.0 dB:   372602,28.34%           394014,29.97%
Pos  -64.0 dB:   61800,4.70%             67646,5.15%
Pos -inf.0 dB:   2547,0.19%              2768,0.21%
Neg -inf.0 dB:   2406,0.18%              2687,0.20%
Neg  -64.0 dB:   60550,4.61%             66711,5.07%
Neg  -32.0 dB:   361757,27.52%           384739,29.27%
Neg  -16.0 dB:   216409,16.46%           194953,14.83%
Neg   -8.0 dB:   11982,0.91%             4596,0.35%
Neg   -4.0 dB:   3,0.00%                 0,0.00%
Neg   -2.0 dB:   0,0.00%                 0,0.00%
Neg   -1.0 dB:   0,0.00%                 0,0.00%
(audiofx) Peak amplitude, period: pos=0.69818 neg=0.65366.
(audiofx) Peak amplitude, all   : pos=0.69818 neg=0.65366.
(audiofx) Clipped samples, period: pos=0 neg=0.
(audiofx) Clipped samples, all   : pos=0 neg=0.
(audiofx) Max gain without clipping, all: 1.43229.
(audiofx) -- End of statistics -------------------------------