Chirp Signal Generator
Dependencies: mbed
Fork of TAU_ZOOLOG_Playback_Rev1_1 by
Matlab_Script/AmplCalc.txt@24:88c0f532b436, 2019-06-20 (annotated)
- Committer:
- Arkadi
- Date:
- Thu Jun 20 12:21:57 2019 +0000
- Revision:
- 24:88c0f532b436
- Parent:
- 15:155cd378c3d1
Experiments
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Arkadi | 15:155cd378c3d1 | 1 | function [Amp, Diff] = AmplCalc(L) % L - length of vector |
Arkadi | 15:155cd378c3d1 | 2 | %Value of Playback and Avisoft should be taken from calibration |
Arkadi | 15:155cd378c3d1 | 3 | |
Arkadi | 15:155cd378c3d1 | 4 | % Frequency Vector - KHz |
Arkadi | 15:155cd378c3d1 | 5 | % [30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 Fd12/2]; |
Arkadi | 15:155cd378c3d1 | 6 | % Playback (dB) |
Arkadi | 15:155cd378c3d1 | 7 | Plb = [-23.12 -19.87 -20.77 -26.72 -25 -30.42 -24 -23.25 -22.57 -21.31 -24.32 -24.71 -27.67 -30.61 -33.26 -33.05 -31.94 -35 -37.5 -41.78 -49.73]; |
Arkadi | 15:155cd378c3d1 | 8 | %Recorded by Avisoft |
Arkadi | 15:155cd378c3d1 | 9 | Avs = [-35.7 -33.9 -33.7 -35.35 -32.84 -35.11 -32.56 -33.19 -34.7 -30.73 -32.43 -32 -30.7 -32.6 -30.45 -29.24 -29.9 -29.28 -29.27 -32.77 -32.7]; |
Arkadi | 15:155cd378c3d1 | 10 | |
Arkadi | 15:155cd378c3d1 | 11 | % dB = 10*log10(Amp^2) |
Arkadi | 15:155cd378c3d1 | 12 | % Amp = sqrt(10^(dB/10)) |
Arkadi | 15:155cd378c3d1 | 13 | |
Arkadi | 15:155cd378c3d1 | 14 | D1 = Plb(length(Plb)); |
Arkadi | 15:155cd378c3d1 | 15 | Plb(length(Plb)+1 : length(Avs)) = D1; |
Arkadi | 15:155cd378c3d1 | 16 | |
Arkadi | 15:155cd378c3d1 | 17 | Diff = Avs - Plb; |
Arkadi | 15:155cd378c3d1 | 18 | % Shift to average value |
Arkadi | 15:155cd378c3d1 | 19 | Diff = Diff - mean(Diff); |
Arkadi | 15:155cd378c3d1 | 20 | % Complete for high path filter |
Arkadi | 15:155cd378c3d1 | 21 | % 0 5 10 15 20 25 30 ... KHz |
Arkadi | 15:155cd378c3d1 | 22 | Amp = [0 0 0 0 0 0.1 sqrt(10.^(Diff/10))]; |
Arkadi | 15:155cd378c3d1 | 23 | A1 = Amp(length(Amp)); |
Arkadi | 15:155cd378c3d1 | 24 | Amp(length(Amp)+1 : L) = A1; |
Arkadi | 15:155cd378c3d1 | 25 |