| 摘要 |
PCT No. PCT/AT81/00009 Sec. 371 Date Jan. 29, 1982 Sec. 102(e) Date Jan. 29, 1982 PCT Filed Apr. 23, 1981 PCT Pub. No. WO81/03566 PCT Pub. Date Dec. 10, 1981.In a device for producing artificial reverberation by means of a one-dimensional waveguide, a one-dimensional waveguide is utilized, which is obtained using digital circuits which contain at least two line sections of different length, each line section consisting of two parallel digital delay arrangements, one for each direction of propagation. At least one three-gate adapter of the digital wave filter type is arranged between two line sections lying side by side, each of two gates of the three-gate adapter being connected with one of the two mutually facing ends of these two line sections, and the dependent gate of the three-gate adapter being terminated with a frequency-dependent absorber of the digital type. By using a digital one-dimensional waveguide with discontinuities and absorbers, it is possible to reverberate a signal diffusely and with a programmable frequency response of the reverberation time without the disadvantage of a reduced sound to noise ratio due to limit cycles.
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