moredB                package:seewave                R Documentation

_A_d_d_i_t_i_o_n _o_f _d_B _v_a_l_u_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     This functions calculates the sum of dB values

_U_s_a_g_e:

     moredB(x)

_A_r_g_u_m_e_n_t_s:

       x: a numeric vector or a matrix.

_D_e_t_a_i_l_s:

     The addition of dB values is not linear. See examples.

_V_a_l_u_e:

     A numeric vector or a matrix is returned.

_A_u_t_h_o_r(_s):

     Jrme Sueur jerome.sueur@ibaic.u-psud.fr

_R_e_f_e_r_e_n_c_e_s:

     Hartmann, W. M. 1998 _Signals, sound and sensation_. New York:
     Springer.

_E_x_a_m_p_l_e_s:

     # two sources of 60 dB give an intensity or pressure level of 63 dB
     moredB(c(60,60))
     # addition of three sources
     moredB(c(89,90,95))

