Code covered by the BSD License  

Highlights from
Nth_Oct_Hand_Arm_&_AC_Filter_Tool_Box

• progressbar(varargin) Displays a multi leveled progressbar. This makes it easy to nest
• ACdsgn(Fs)
• Test_Nth_oct_filters1(resampl... % Test_Nth_oct_filters1: This program tests the Nth octave time filters for continuous and impulsive noise
• [A2, A_str, real_digitsL, rea... % sd_round: Rounds an array to a specified number of Significant Digits, significant figures, digits of precision
• [B, A]=Nth_octdsgn(Fs, Fc, N,...
• [B, A]=hand_arm_fil(Fs) % hand_arm_fil: Calculates the hand arm vibrations filter coefficients
• [Fsn, p, q, errors]=get_p_q2(...
• [LeqA, LeqA8, LeqC, LeqC8, Le... % Leq_all_calc: Calculates levels and peaks for A, C, and linear weighting
• [SP, f, bin_size, num_average... % pressure_spectra: Calculates an accurate estimate of the pressure spectra
• [SP, f, num_averages_out]=spe... % spectra_estimate: Is a rough estimate of the pressure spectra
• [SP2, mean_array2, mean1, arr... % sub_mean: Removes the running average from a time record given a sampling rate and high pass cutoff frequency.
• [SP2, mean_array2]=sub_mean(S... % sub_mean: Removes the running average from a time record given a sampling rate and high pass cutoff frequency.
• [SP_rms_levels_a, SP_peak_lev... % Test_third_oct_filters: Tests Nth octave filters with pure tones and tone bursts
• [Wa, Wc]=AC_weight_NB(f, outp... % AC_weight_NB: Calculates the A and C frequency weights at specified frequencies
• [bin_size, num_averages_out, ... % number_of_averages: Calculates the number of points not overlapped from the array size, bin size, and number of averages
• [bz, az]=bessel_digital(Fs, F... % bessel_digital: creates a digital low pass bessel filter of order n
• [f, A_atten, A_atten2, C_atte... % Test_ACweight: Tests the A and C weighting filters using pure tones and tone bursts
• [f_sig, Wf ]=Test_hand_arm(Fs... % Test_hand_arm: Tests the accuracy of the hand-arm vibrations filters
• [fc_out, SP_levels, SP_peak_l... % Nth_oct_time_filter: Calculates the Nth octave center frequencies, sound levels, peak levels, and time records
• [fc_out, SP_levels, SP_peak_l... % Nth_oct_time_filter2: Calculates the Nth octave center frequencies, sound levels, peak levels, and time records
• [filename_base, ext]=file_ext... % file_extension: separates a filename and path from the file extension
• [ftwcf]=window_correction_fac... % window_correction_factor: Computes the factor for calibrating a Fourier Transform given specific processing parameters
• [m2]=geospace(a, b, n, flag) % geospace: caculates a geometric sequence or psuedogeometric sequence from a to b with n elements
• [ndraw, count, count2, error]... % rand_int: Quckly generates n random integers from a to b integer
• [prms]=rms_val(p, dim) % rms_val: Calculates the rms value along a specific dimension
• [res,raw]=fastmcd(data,option... version 22/12/2000, revised 19/01/2001,
• [varargout]=convert_double(va... % This program converts the inputs into double precision arrays. Then
• [w]=flat_top(N, type) % Flat top windows are used for calibration, because the wide main lobe
• [xw, xp, xb, SPLw1, SPLp1, SP... % Test_third_oct_filters: Tests Nth octave filters with white, pink, and brown noise.
• [y, t]=tone_burst(Fs, fc, td,... % sinusoidal_w_wave: N wave with known peak level, frequency and duration
• [y, x, a]=match_height_and_sl... % match_height_and_slopes2: creates a quartic with specifed height and slope at the end points.
• [y2, num_settle_pts, settling... % filter_settling_data: Creates data to append to a time record for settling a filter
• [y2]=remove_filter_settling_d... % remove_filter_settling_data: removes data added to time records to settle the filter
• [yAC, errors]=ACweight_time_f... % ACweight_time_filter: Applies an A or C weighting time filter to a sound recording
• [y]=moving(x,m,fun) MOVING will compute moving averages of order n (best taken as odd)
• [y_out, b, a]=bessel_antialia... % bessel_antialias: applies an antialiasing digital Bessel filter
• [y_out, t_out, b, a]=bessel_d... % bessel_down_sample: applies an antialiasing digital Bessel filter
• [y_out, x_out, y_in]=resample... % resample_interp3: resamples using interp1 with additional options
• [yh, B, A, errors]=hand_arm_t... % hand_arm_time_fil: Calculates the hand arm vibrations filter coefficients and returns the filtered time record
• fastlts(x,y,options) version 22/12/2000, revised 19/01/2001, 30/01/2003
• nth_freq_band(N, min_f, max_f... % nth_freq_band: Calculates the 1/nth octave frequency bands center, lower, and upper bandedge limits
• plot_test_Nth_oct_filters(SP_... % plot_test_Nth_oct_filters: plots the third octave filter test data
• rmean(y, db_or_lin) % get_stats: Calculates descriptive statistics for the input variable y.
• save_a_plot_reverb_time(a, fi... % save_a_plot_reverb_time: Saves current figure to specified image type.
• spatialPattern(DIM,BETA) function x = spatialPattern(DIM, BETA),
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