JPS5918466Y2 - Ensemble effect generator - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an unsample effect generating device suitable for use in electronic musical instruments.

In conventional electronic musical instruments, the sound is produced simply from a fixed speaker, so the sound is extremely flat.

Furthermore, even those equipped with a tremolo device using a rotating speaker or the like simply change the intensity of the sound, or the frequency changes to a certain extent due to the Doppler effect, and it is not possible to obtain a deep sound.

The purpose of this invention is to provide means for obtaining multiple systems of delayed signals from musical tone signals through a plurality of variable delay devices, an ultra-low frequency oscillator for supplying control signals of different phases to each of the delay devices, and An unsample characterized by comprising a plurality of speakers that amplify signals obtained from delay devices and then emit sounds, and a mixing means that mutually mixes musical tone signals between each of these speakers and each of the delay devices. The object of the present invention is to provide an effect generating device.

Next, this invention will be explained in detail with reference to the illustrated embodiments.

FIG. 1 is a system diagram of an embodiment of this invention, in which a musical tone signal is applied from a sound source to an input terminal T and is dividedly connected to delay devices IA, IB, and 1C, which will be described later.The delay device 1A is connected to a speaker via an amplifier A1. Connect to SP1 and delay device 1B
is connected to speaker SP2 via amplifier A2, and delay device 1C is further connected to speaker SP3 via amplifier A3.

Further, the respective speakers are connected through resistors R7, R8, and R9, and the respective musical tone signals are mixed with each other.

In addition, the 7H2 oscillator 3 provided incidentally in the above system is connected to the phase division circuit 4 to extract 7H2 different phase signals, and the other 0,7H2 oscillator 5 is connected to the phase division circuit 6 to output Q, 7H2 different phase signals are extracted.

The phase-specific outputs of these phase dividing circuits 4 and 6, for example Oo, are applied to the delay device 1A through resistors R1 and R2, respectively, and the outputs of 60° phase are delayed through resistors R3 and R4, respectively. The 120° phase outputs are further supplied to the delay device 1C via resistors R5 and R6.

The configuration of this invention is as described above, and a charge coupled device (abbreviated as CCD) is suitable as a delay device used in this device.
) will be explained.

Each voltage line 11.1 for every three electrodes as shown in FIG.
electrodes 11A, 12A, 13A, and electrodes 11B, so that the same voltage with different phases is applied from electrodes 2 and 13.
12B, 13B and other electrodes 11C, 12C, 1
If 3C are connected in parallel for each set and a voltage is applied to the A electrode, holes exist under each electrode according to the signal pattern as shown in Figure 2 A, and then a voltage is applied to the B electrode. Then, as shown in A in the same figure, the potential well of this electrode becomes the deepest, allowing the holes in the A electrode to move.It is known that when a voltage is then applied to the C electrode, the state shown in the figure will occur. In this embodiment, three electrodes constitute one bit in order to give directionality to the hole transfer, so the shift of one bit is completed by further similar transfer.

The CCD is as described above, and the output of the 7H2 oscillator 3 is divided into 0°, 60°,
It is divided into 120° phase and applied to voltage controlled oscillators 2A, 2B, 2C through resistors R□, R3°R5, respectively, and the output of Q, 7H2 oscillator 5 is divided into 0°, 60°, 120° by phase dividing circuit 6. Divide into phases, resistor R2゜R4
, R6, and the outputs of the respective phases of the 7H2 oscillator 3, and are added to the voltage controlled oscillators 2A, 2B, and 2C. The signal is transferred to amplifier A1. A2.
A3 and then speaker SP1. SP2. Send from SP3.

At this time, the human input waveform of the voltage controlled oscillator 2A with a phase of 0° is a waveform in which a 0.7H2 waveform is added to a 7H2 waveform, as shown in FIG. The waveform will be as shown in the figure.

Next, when using this for an electronic musical instrument, as shown in FIG.
When installing SF3, if the speaker SP2 is attached to the front panel 8C, the sound will move from side to side, and the stereo effect can be enhanced.

In particular, by connecting each speaker with resistors R7, R8, and R9 and mixing each musical tone signal with each other, the transition of sound between each speaker becomes smooth, and the transition of sound images between multiple sound sources is extremely natural to the auditory sense. You can get a nice unsampled effect.

In addition, as a means to obtain a three-phase 7H2 signal and a 0.7H2 signal, a 7H2 oscillator and a 0.7H2 signal are used as shown in FIG.
Three oscillators are provided, each with a resistor R1o.
By mixing through R13, R1□ and R14, and R1□ and R15, the oscillation outputs of each oscillator do not have the same phase relationship with each other, so an irregular unsampling effect can be obtained, making it more natural. It is true.

In FIG. 5, E indicates an expression pedal, PK indicates a pedal keyboard, LK indicates a lower keyboard, and UK indicates an upper keyboard.

As described above, this invention includes means for obtaining multiple systems of delayed signals by transmitting musical tone signals through a plurality of variable delay devices, an ultra-low frequency oscillator for supplying control signals of different phases to each of the delay devices, and The present invention includes means for amplifying the signals obtained from each of the delay devices and emitting the sound, and a mixing means for mutually mixing the musical tone signals between the sound emitting means and each of the delay devices. The musical sound signal is delayed by 0, 7H2, and then this is further delayed by 7H2, which creates an unsampled effect that makes it feel like multiple instruments are being played, and the speakers that generate these are placed in the left and right directions. By doing so, the sound image moves left and right, making it possible to obtain an unsampled sound effect with a wide range of sound and depth.

In addition, with this invention, by providing a mixing means, there is no unnatural movement of the sound image even when the number of systems is small.
It is possible to obtain an unsampled sound effect with smooth sound image movement.

[Brief explanation of drawings]

Figure 1 is a system diagram of an embodiment of this invention, Figure 2 is a diagram of the operating principle of a delay element (CCD), Figure 3 is an input waveform diagram of a voltage controlled oscillator, Figure 4 is a speaker output waveform diagram, FIG. 5 is a partially cutaway front view of the electronic musical instrument, and FIG. 6 is a system diagram of a modification of this invention.

Claims (1)

[Scope of utility model registration request] means for obtaining multiple systems of delayed signals from musical tone signals through a plurality of variable delay devices; an ultra-low frequency oscillator for supplying control signals of different phases to each of the delay devices; multiple speakers that emit sound after amplifying the signal;
An unsampling effect generating device characterized in that mixing means for mixing musical tone signals with each other is provided between each of the speakers and each of the delay devices.