摘要:
In a speech judging section, a speech portion and a speechless portion of an acoustic signal are judged. Data of the acoustic signal are stored in a buffer memory. A memory control section controls writing of the data judged to be the speech portion in the speech judging section into the buffer memory, and reading of the data from the buffer memory. A time-scale modification section determines a time scale modification speed depending on an amount of residual storage data which have not been read out from the buffer memory, and modifies time scale of the acoustic signal depending on the time scale modification speed.
摘要:
Low-frequency components (S2) are selected from the outputted analog sound signal (S1) so that a low-pitched sound signal is derived from the analog sound signal. A key of the low-pitched sound signal is lowered so that a very-low-pitched sound signal (S3) is derived from the low-pitched sound signal (S2). The analog sound signal (S1) and the very-low-pitched sound signal (S3) may be converted into corresponding sounds respectively (S4).
摘要:
A reverberator comprises a tapped delay line (2, 3, 4, 5, 10) connected to an analog audio signal source (1) for deriving therefrom at least one pair of output signals which are respectively delayed by first and second different values with respect to the source signal, the ratio of the first to second values being an irrational number. A recirculating delay line (6, 7, 11, 12) is connected to the output of the tapped delay line having a delay element (63, 73, 113, 123) for introducing an additional delay to the output signals of the tapped delay line and a resistive recirculating path (65, 75,115,125) for recirculating the additionally delayed signals through the delay element. The output of the recirculating delay line is combined with the source signal to derive a reverberating audio signal.
摘要:
In a sound reproduction system having two loudspeakers (1,1b) located in front of a listener, an input audio signal is divided into a plurality of channel signals which are respectively applied through voltage adjusting devices (3) to the front loudspeakers and also to additional speakers (1c, 1d) or localization networks (15) to generate additional real or phantom sound sources at ±90 degrees to the normal to the listener. The additional sound sources and the front loudspeakers are located symmetrically with respect to the listener. By manual operation of the adjusting devices a sonic image can be localized at any point in the front half plane. Continual operation of the adjusting devices causes the localized sonic image to be moved continuously within the localizable area.
摘要:
Low-frequency components (S2) are selected from the outputted analog sound signal (S1) so that a low-pitched sound signal is derived from the analog sound signal. A key of the low-pitched sound signal is lowered so that a very-low-pitched sound signal (S3) is derived from the low-pitched sound signal (S2). The analog sound signal (S1) and the very-low-pitched sound signal (S3) may be converted into corresponding sounds respectively (S4).
摘要:
In a sound reproduction system having two loudspeakers (1,1b) located in front of a listener, an input audio signal is divided into a plurality of channel signals which are respectively applied through voltage adjusting devices (3) to the front loudspeakers and also to additional speakers (1c, 1d) or localization networks (15) to generate additional real or phantom sound sources at ±90 degrees to the normal to the listener. The additional sound sources and the front loudspeakers are located symmetrically with respect to the listener. By manual operation of the adjusting devices a sonic image can be localized at any point in the front half plane. Continual operation of the adjusting devices causes the localized sonic image to be moved continuously within the localizable area.
摘要:
A reverberator comprises a tapped delay line (2, 3, 4, 5, 10) connected to an analog audio signal source (1) for deriving therefrom at least one pair of output signals which are respectively delayed by first and second different values with respect to the source signal, the ratio of the first to second values being an irrational number. A recirculating delay line (6, 7, 11, 12) is connected to the output of the tapped delay line having a delay element (63, 73, 113, 123) for introducing an additional delay to the output signals of the tapped delay line and a resistive recirculating path (65, 75,115,125) for recirculating the additionally delayed signals through the delay element. The output of the recirculating delay line is combined with the source signal to derive a reverberating audio signal.