JPH0228699A - Delay device - Google Patents

Abstract

PURPOSE:To confirm a delayed sound signal securely and sensually and to facilitate tempo adjusting operation by performing the tempo adjustment according to the blinking of a visual display means which blinks at a period in proportional relation to a delay time. CONSTITUTION:A delay part 2 has its delay time determined according to the frequency of a driving clock signal outputted by a voltage-controlled oscillation part VCO 5. The VCO 5 inputs a voltage signal having a value corresponding to the delay time set by a delay time setting part 4 and outputs the driving clock signal of frequency corresponding to the voltage signal. Further, a frequency division part 6 is connected to the output of the VCO 5 and divides the frequency of the output signal of the VCO 5 with a frequency division ratio to the period of, for example, the delay time, thereby making a light emitting diode 8 blink through a transistor 7 with the frequency-division output signal. Consequently, the delay time is grasped easily and sensually and the delayed sound signal is confirmed securely and sensually without being sounded, thereby facilitating the tempo adjusting operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a delay device, and more particularly to a delay device that imparts a so-called delay effect to an input audio signal.

(Prior art) For example, in a delay device that can add chorus effects, echo effects, etc. that are derivative effects of delay effects, when setting the delay time relatively large and matching the delay time to the performance tempo. , when this delay time is adjusted to the time of one bar and no echo effect is added, there will be a time difference of exactly one bar between the actually played note and the delayed output note, resulting in a difference between the two voices. You can get a special effect like singing in a circle.

By the way, in the above-described conventional delay device, the set delay time is displayed numerically or intuitively confirmed by a delayed audio signal that is output and emitted.

(Problems to be Solved by the Invention) However, in the former method, there is a problem that the delay time cannot be grasped intuitively because it is displayed numerically, making it difficult to match the tempo.

Further, in the latter case, there is a problem in that the audio signal cannot actually be emitted on a stage or the like, and the delayed audio signal may not be visually confirmed.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned problems, and it is possible to intuitively grasp the delay time when adjusting the tempo of an audio signal to be outputted after being delayed, and also to enable the so-called delayed output to be performed. To provide a delay device that allows the user to intuitively and reliably check the recorded audio signal and easily adjusts the tempo.

(Means for Solving the Problems) In order to solve the above-mentioned problems, a delay device according to the present invention includes: (a) a delay unit that delays and outputs an input audio signal and can variably set the delay time; and (b) a visual display means that blinks at a period proportional to the delay time, and the tempo is adjusted by blinking the visual display means.

(Operation/Effect) Therefore, by using a visual display means that flickers at a period proportional to the set delay time, it is possible to grasp the delay time intuitively, and without emitting the so-called delayed audio signal. You can check the tempo easily and reliably by intuitively checking it.

(Example) Next, regarding a specific example of the delay device according to the present invention,
This will be explained with reference to the drawings.

In FIG. 1, the delay section 2 is BBD in this embodiment.
Analog delay elements such as
has an input terminal 1 for inputting an audio signal, an output terminal 3 for outputting an audio signal with added effects, and a variable resistor 9 forming a feedback circuit from the output side to the input side.

Further, the delay time of the delay section 2 is determined by the frequency of the drive clock signal output from the voltage controlled oscillation section (hereinafter referred to as ``CO'') 5.

A voltage signal having a value corresponding to the delay time set by the delay time setting section 4 is input to the VCO 5, and a driving clock signal having a frequency corresponding to this voltage signal is output. Further, a frequency dividing unit 6 is connected to the output of the VCO 5, and divides the output signal of the VCO 5 with a frequency division ratio equal to the period of the delay time, and uses this frequency-divided output signal to control the transistor 7.
The light emitting diode 8 is blinked via the light emitting diode 8.

If you want to obtain the above effects in the above configuration, reduce the value of the variable resistor 9 so that the performance sound continues for a long time, and then set the delay time setting section 4 while watching the flashing of the light emitting diode 8. By adjusting the delay time to an appropriate delay time, the delay time can be easily set to match the performance tempo, and a performance with the above-mentioned effects can be achieved.

It should be noted that the blinking period of the light emitting diode 8 and the delay time do not need to be equal to each other as long as they have a proportional relationship. For example, by blinking at a cycle of 1/4.1/3 of the delay time, it is possible to blink at 4 beats or 3 beats with the delay time being 1 measure.

Next, FIG. 2 shows another embodiment. In this embodiment, another VC05' is provided in place of the frequency dividing section 6 in FIG. The rest is the same as in Figure 1.

Next, FIG. 3 shows an embodiment in the case of a digital delay device. The delay section 2 includes a storage device, samples the audio signal input to the input terminal 1 at the cycle of the reference clock signal generation section 11, and stores each of the sampled audio signals as a digital signal in the storage device, Delay time setting unit 4 by counting the reference clock signal
A delay signal is obtained by obtaining the delay time set in , reading out the previously stored data, converting it into an analog value, and outputting it from the output terminal 3. Each part is controlled by the control section 10.

Then, the signal outputted from the reference clock signal generating section 11 is frequency-divided in the control section 10, and the light emitting diode 8 is caused to blink at a period proportional to the delay time via the transistor 7.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram for explaining an embodiment of a delay device according to the present invention, and FIGS. 2 and 3 are block circuit diagrams of other embodiments. 1... Input terminal 2... Delay section 3... Output terminal 4... Delay time setting section 5.5''... Voltage controlled oscillator (VCO) 6... Frequency dividing section 7.
...Transistor 8...Light emitting diode 9...Variable resistor 10...Control section 11...Reference clock signal generation section

Claims (1)

[Claims] 1(a) Delaying and outputting an input audio signal, and
It is characterized by comprising a delay means whose delay time can be variably set and (b) a visual display means that blinks at a period proportional to the delay time, and the tempo is adjusted by blinking the visual display means. delay device.