JP2005292317A - Mixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mixing device that enables even a DJ, who is not familiar with operations of an operation part, to reproduce operation indication of an operation part stored in a storage part in timing with the beats detected from an audio signal. <P>SOLUTION: The mixing device is equipped with an input part, which inputs the audio signal, a selection switching part which selects the audio signal inputted from the input part, a switching part which switches an audio signal into audio signal selected by the selection part; a beat detection part which detects beats of the audio signal; an operation procedure storage part which stores an operation procedure of selecting the audio signal by the selection part; and a control part which controls the switching of the audio signal by the switching part, according to the operation procedure of the selection part stored in the operation procedure storage part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mixing apparatus that selects a plurality of input audio signals, performs sound effect processing on the selected audio signals, and outputs an audio signal.

  A conventional mixing apparatus includes a plurality of input terminals for inputting audio signals. In general, an audio signal input to the nth input terminal is referred to as an nth channel audio signal. The operation unit of the mixing device has a plurality of selection switches for selecting an audio signal input from the plurality of input terminals, an operation for storing the audio signal input from the input terminal in the storage unit as sampling data, and the storage unit A plurality of sampler buttons for performing the operation of outputting the sampling data stored in the memory.

  A DJ (Disc Jockey) that operates the mixing apparatus can perform an operation of generating a sound effect from the input audio signal using the selection switch described above. For example, an audio signal of the first channel (hereinafter referred to as ch1) is input to the first input terminal, and an audio signal of the second channel (hereinafter referred to as ch2) is input to the second input terminal. Shall not. The DJ quickly and repeatedly performs the operation of selecting ch1 and ch2 alternately using the selection switch. When the DJ performs an operation of selecting ch1, the audio signal of ch1 is output from the mixing device. When DJ selects ch1 to ch2, the audio signal is not output from the mixing device (silence). For this reason, when the DJ repeatedly performs the operation of selecting ch1 and ch2 by the selection switch, the audio signal and silence are alternately output, and a sound effect can be generated.

  In addition, the DJ can perform an operation of generating a rhythm serving as a base of the music using the sampler button described above. For example, it is assumed that audio signals are already stored as sampling data 1 and sampling data 2, and both of these data are those in which the sound of a drum sound having a high sound pressure level is stored in a storage unit provided in the mixing device. And The DJ repeatedly performs an operation of alternately outputting the audio signal of sampling data 1 and the audio signal of sampling data 2 by using two sampler buttons (sampler button 1 and sampler button 2). When the DJ presses the sampler button 1, an audio signal of sampling data 1 is output from the mixing device. When the DJ presses the sampler button 2, an audio signal of sampling data 2 is output from the mixing device. Therefore, when the DJ repeatedly presses the sampler button 1 and the sampler button 2, the audio signal of the sampling data 1 (drum sound 1) and the audio signal of the sampling data 2 (drum sound 2) are alternately output. Thus, the rhythm that is the basis of the music can be generated.

  In addition, the conventional mixing device reproduces information indicating which operator is operated with respect to an audio signal of which channel and information indicating an elapsed time of the audio signal when the operation is performed. There is an apparatus having an automatic reproduction function that stores information as information and automatically operates an operator according to the reproduction information (see, for example, Patent Document 1).

JP-A-7-202603

  As described above, the DJ sometimes repeats the operation of the selection switch in order to generate the sound effect using the selection switch. At this time, the DJ can generate a sound effect with a constant rhythm and output it from the mixing device by operating the selection switch in accordance with beats generated at a constant interval while listening to the audio signal. Further, the DJ may perform an operation of repeatedly pressing the sampler button 1 and the sampler button 2 alternately in order to generate a rhythm as a base of the music using the sampler button. At this time, the DJ synthesizes the rhythm sound generated from the sampling data by repeatedly pressing the sampler button 1 and the sampler button 2 according to the beat while listening to the audio signal selected by the selection switch. The mixed audio signal can be output from the mixing device.

  In a mixing apparatus having an automatic reproduction function as disclosed in Patent Document 1, information indicating the operation of the selection switch, the sampler button 1 and the sampler button 2, and the elapsed time of the audio signal when those operations are performed Is stored as reproduction information, so that the DJ does not need to repeat the selection switch, the sampler button 1 and the sampler button 2 repeatedly in accordance with the beat.

  However, in order to store the reproduction information, the DJ must continue to repeat the selection switch, the sampler button 1 and the sampler button 2 according to the beat. For this reason, since the DJ operates the selection switch, the sampler button 1 and the sampler button 2 in accordance with the beat, it is necessary to have an accurate rhythm sense. In addition, the DJ needs to master the repeated operation of the selection switch, the sampler button 1 and the sampler button 2 in accordance with the beat.

  The present invention has been made in order to solve the above-described problem, and it is detected from an audio signal even by a DJ who is not familiar with the operation of the operation element without performing an operation of pressing the operation element in time with a beat. An object of the present invention is to provide a mixing apparatus that can reproduce the operation of the operation element stored in the storage unit in accordance with the beat.

  In order to solve the above-described problems, an invention according to claim 1 of the present application includes an input unit that inputs a plurality of audio signals, and an acoustic effect processing unit that performs acoustic effect processing on the audio signals input from the input unit. A mixing device comprising: an output unit that outputs an audio signal subjected to sound effect processing by the sound effect processing unit; and a selection unit that selects an audio signal input from the input unit; and the sound effect processing unit A switching unit that switches the audio signal input to the audio signal selected by the selection unit, a beat detection unit that detects a beat of the audio signal selected by the selection unit, and an operation that selects the audio signal by the selection unit An operation procedure storage unit for storing information indicating a procedure, and a previous operation stored in the operation procedure storage unit in accordance with the beat detected by the beat detection unit. Characterized in that it comprises a control unit for controlling the switching of the audio signal by the switching unit according to the information indicating the procedure of the operation selecting unit.

  The invention according to claim 2 of the present application includes: an input unit that inputs a plurality of audio signals; an acoustic effect processing unit that performs acoustic effect processing on the audio signal input from the input unit; and the acoustic effect processing unit. In a mixing apparatus comprising an output unit that outputs an audio signal subjected to sound effect processing, a selection unit that selects an audio signal input from the input unit, and a beat of the audio signal selected by the selection unit Beat detecting unit to detect, audio data storage unit having a plurality of storage areas for storing audio signals, designation unit for designating audio signals stored in a plurality of storage areas of the audio data storage unit, and the designation unit An operation procedure storage unit that stores information indicating an operation procedure for designating an audio signal stored in the storage area of the storage unit, and In accordance with the beat detected by the detection unit, control is performed to read out audio signals stored in a plurality of storage areas of the audio data storage unit according to information indicating the operation procedure of the designation unit stored in the operation procedure storage unit. And a control unit.

  According to the present invention, an operation stored in the storage unit according to the beat detected from the audio signal even by a DJ who is not familiar with the operation of the operator without performing an operation of pressing the operator according to the beat. It is possible to provide a mixing apparatus that can reproduce the operation of the child.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a mixing apparatus according to an embodiment of the present invention. In FIG. 1, 1 is an input unit, 1a is an input terminal to which a ch1 audio signal is input, 1b is an input terminal to which a ch2 audio signal is input, 1c is an input terminal to which a ch3 audio signal is input, and 1d is Input terminal for input of ch4 audio signal, 1e for input terminal for input of ch5 audio signal, 1f for input terminal for input of ch6 audio signal, 2 for switching unit, 3 for ADC (Analog to Digital Converter) ) 4 is an acoustic effect processing unit, 4a is an audio data storage unit, 5 is a DAC (Digital to Analog Converter), 6 is an output terminal, 7 is a beat detection unit, 8 is a control unit, 8a is an operation procedure storage unit, 9 Indicates an operation unit.

  FIG. 2 is a diagram illustrating the operation unit 9 of the mixing apparatus according to the embodiment of the present invention. In FIG. 2, 10a is a selection switch for selecting a ch1 audio signal or a ch2 audio signal, 10b is a selection switch for selecting a ch3 audio signal or a ch4 audio signal, and 10c is a ch5 audio signal or a ch6 audio signal. A selection switch for selecting; 11 a display unit; 12 a sampler button for performing operations for storing digital audio data as sampling data 1 in the audio data storage unit 4a and for outputting sampling data 1 stored in the audio data storage unit 4a; Reference numeral 13 denotes a sampler button for performing operations for storing the digital audio data in the audio data storage unit 4a as sampling data 2 and outputting the sampling data 2 stored in the audio data storage unit 4a. Reference numeral 14 indicates a selection switch 10a to a selection switch. An operation storage button for storing information indicating an operation procedure in which the switch 10c or the sampler button 12 and the sampler button 13 are operated in the operation procedure storage unit 8a, and 15 indicates an operation procedure stored in the operation procedure storage unit 8a. A reproduction start button for starting reproduction of the operation procedure according to the information, 16 is a reproduction number setting knob for setting the number of times to reproduce the operation procedure stored in the operation procedure storage unit 8a, and 17a is an audio selected by the selection switch 10a. A ch fader for adjusting the output level of the signal, 17b a ch fader for adjusting the output level of the audio signal selected by the selection switch 10b, and 17c a ch fader for adjusting the output level of the audio signal selected by the selection switch 10c, 18 reproduces the operation procedure according to the information stored in the operation procedure storage unit 8a according to the beat. Shows the number of beats setting knob for setting the number of beats for.

  The input unit 1 shown in FIG. 1 includes six input terminals 1a to 1f. The input terminal 1a to the input terminal 1f are connected to an audio output terminal provided in a playback device such as an analog record player or a CD (Compact Disc) player with a cable, and input analog audio signals from these playback devices. The switching unit 2 switches the analog audio signal input from the input unit 1 to the analog audio signal of the channel selected by the selection switch 10a, the selection switch 10b, and the selection switch 10c of the operation unit 9. The analog audio signal switched by the switching unit 2 is input to the ADC 3. For example, when ch1 is selected by the selection switch 10a, the switching unit 4 switches so as to select an analog audio signal input from the input terminal 1a.

  The analog audio signal input to the ADC 3 is converted into digital audio data and input to the sound effect processing unit 4 and the beat detection unit 7. The sound effect processing unit 4 performs sound effect processing such as generation of sound effects such as echoes from the input digital audio data and synthesis of the generated sound effects and the digital audio data input from the ADC 3. The sound effect processing unit 4 also adjusts the output level of the analog audio signal output from the sound effect processing unit 4 by the ch fader 17a, the ch fader 17b, and the ch fader 17c of the operation unit 9. The sound effect processing unit 4 includes an audio data storage unit 4a that stores digital audio data.

  In the audio data storage unit 4 a, digital towel audio data for a predetermined time is stored as sampling data 1 from the digital audio data input to the sound effect processing unit 4 when the sampler button 12 of the operation unit 9 is pressed. A storage area for storing digital towel audio data for a predetermined time from the digital audio data input to the sound effect processing section 4 as sampling data 2 when the sampler button 13 of the operation section 9 is pressed. I have. When the sampler button 12 is pressed, the sampling data 1 stored in the audio data storage unit 4a is read out and input to the DAC 5. When the sampler button 13 is pressed, the sampling data 2 stored in the audio data storage unit 4a is read out and input to the DAC 5. The DAC 5 converts the digital audio data input from the sound effect processing unit 4 into an analog audio signal. The analog audio signal converted by the DAC 5 is output from the output terminal 6.

  The beat detection unit 7 detects beats generated by a specific musical instrument (for example, a percussion instrument that always generates sounds having substantially the same frequency component) at regular intervals. For example, the beat detector 7 extracts a predetermined frequency band component from the digital audio data input from the ADC 3, and detects the occurrence of a beat when the level of the extracted data exceeds a predetermined level. The beat detector 7 calculates the beat number per minute (BPM) from the detected beat and inputs the calculated BPM to the controller 8.

  The control unit 8 controls the switching unit 2 and the sound effect processing unit 4 according to an operation instruction from the operation unit 9. The control unit 8 calculates an occurrence time T of an interval at which a beat occurs from the BPM input from the beat detection unit 7. For example, when the input BPM is 120, the beat is generated twice per second, so the generation time T is 0.5 seconds. In addition, the control unit 8 includes an operation procedure storage unit 8a that stores an operation procedure in which the selection switch 10a to the selection switch 10c, the sampler button 12, and the sampler button 13 are operated.

A mixing apparatus according to a first embodiment of the present invention will be described.
In the first embodiment, an operation of generating a sound effect from an audio signal input using the selection switch 10a will be described. Here, the first embodiment of the present invention will be described on the assumption that the input terminal 1a is connected to an analog record player and an analog audio signal of ch1 is input, and the input terminal 1b is not connected to a playback device. . FIG. 3 is a flowchart for explaining the operation of the mixing apparatus according to the first embodiment.

  Step 1 shown in FIG. 3 is a step of pressing the operation storage button 14. The DJ presses the operation storage button 14. Step 2 is a step of operating the selection switch 10a. The DJ performs an operation of selecting ch1 with the selection switch 10a (hereinafter referred to as operation 1) and then an operation of selecting ch2 (hereinafter referred to as operation 2).

  Step 3 is a step in which the control unit 8 performs control to store information indicating an operation procedure by the selection switch 10a in the operation procedure storage unit 8a. The control unit 8 performs control to store information indicating the operation procedure of the operation 1 and the operation 2 by the selection switch 10a in the operation procedure storage unit 8a.

  Step 4 is a step of setting the number of times to reproduce the operation procedure according to the information indicating the operation procedure stored in the operation procedure storage unit 8a by the reproduction number setting knob 16. The DJ operates the reproduction number setting knob 16 to set the number of times to reproduce the operation procedure of the operation 1 and the operation 2 according to the information indicating the operation procedure stored in the operation procedure storage unit 8a. In this embodiment, the number of times the operation procedure is reproduced is set to 10. In this case, the operation procedure from the operation 1 to the operation 2 is continuously reproduced 10 times.

  Step 5 is a step of setting the number of beats for reproducing operations 1 and 2 in accordance with the beat by the beat number setting knob 18. The DJ operates the beat number setting knob 18 to set the beat number. For example, when the DJ sets the number of beats to 1, the mixing apparatus according to the present embodiment can reproduce the operation of the operation 1 or the operation 2 every time one beat is generated. When set, for example, when the number of beats is set to 4, the operation 1 or 2 can be reproduced every time four beats are generated. In this embodiment, the number of beats is set to 1. In this case, the mixing apparatus of the first embodiment reproduces the operation 2 when one beat is generated after the operation 1 is reproduced.

  Step 6 is a step of selecting ch1 by the selection switch 10a. When an operation instruction for selecting ch1 is input from the operation unit 9, the control unit 8 controls the switching unit 2 to switch so as to select the analog audio signal of ch1 input from the input terminal 1a. The analog audio signal of ch1 input from the input terminal 10a is converted into digital audio data by the ADC 3 and input to the sound effect processing unit 4 and the beat detection unit 7.

  Step 7 is a step in which the beat detector 7 detects a beat from the input digital audio data. The beat detection unit 7 calculates a BPM from the detected beat, and inputs the calculated BPM to the control unit 8. The control unit 8 calculates a generation time T from the input BPM until a beat is generated.

  Step 8 is a step in which the control unit 8 determines whether or not the reproduction start button 15 of the operation unit 9 has been pressed. The DJ listens to the ch1 audio signal output from the mixing apparatus of the present embodiment, and presses the reproduction start button 15 when listening to the occurrence of a beat at the position where the sound effect is to be generated using the selection switch 10a. . If the reproduction start button 15 is pressed, the process proceeds to step 9.

  Step 9 is a step in which the control unit 8 performs control to reproduce the operation 1. The control unit 8 controls the switching unit 2 to select the ch1 analog audio signal input from the input terminal 1a according to the operation information indicated by the operation 1 stored in the operation procedure storage unit 8a. Here, since the selection switch 10a is used to select the ch1 audio signal in step 6, the control unit 8 does not perform switching control to select the ch1 analog audio signal input from the input terminal 1a. . As will be described later, when the process of step 9 is performed next, that is, when the process of step 9 is performed after step 12 and step 13 following the reproduction of operation 2 (step 11), the control unit 9 The switching unit 2 performs control to select the analog audio signal of ch1.

  Step 10 is a step in which the control unit 8 determines whether or not the number of beats set in Step 5 has occurred. Since the number of beats is set to 1 in step 5, the control unit 8 reproduces the operation 1 in order to reproduce the operation 2 when the next beat occurs after the control to reproduce the operation 1. Then, it is determined whether or not the generation time T calculated in step 7 has elapsed. If the number of beats set in step 5 is generated, the process proceeds to step 11.

  Step 11 is a step in which the control unit 8 performs control to reproduce the operation 2. The control unit 8 controls the switching unit 2 to select the analog audio signal of ch2 in accordance with the operation information indicated by the operation 2 stored in the operation procedure storage unit 8a.

  Step 12 is a step in which the control unit 8 determines whether or not the number of times to reproduce the operation procedure set in Step 4 has been reached. In step 4, since the number of times the operation procedure is reproduced is set to 10 times, the control unit 8 determines whether or not the operation procedure of operation 1 and operation 2 has been reproduced 10 times. If it is not the number of times to reproduce the operation procedure set in step 4, the process proceeds to step 13.

  Step 13 is a step in which the control unit 8 determines whether or not the number of beats set in Step 5 has occurred. Since the number of beats is set to 1 in step 5, the control unit 8 determines whether or not the generation time T calculated in step 7 has elapsed after performing control to reproduce the operation 2. If the number of beats set in step 5 is generated, the process proceeds to step 9.

  In the first embodiment described above, the control unit 8 selects ch2 and control for reproducing the operation 1 for selecting ch1 by the selection switch 10a in accordance with the beat of the analog audio signal of ch1 input from the input terminal 1a. Control to reproduce operation 2. For this reason, since the ch1 analog audio signal is input from the input terminal 1a and the ch2 audio signal is not input from the input terminal 1b, the mixing apparatus of the present embodiment matches the ch1 of the ch1 analog audio signal with the ch1. The analog audio signal and silent playback sound can be output alternately.

Next, a mixing apparatus according to a second embodiment of the present invention will be described.
In the second embodiment, an operation of generating a rhythm sound using the sampler button 12 and the sampler button 13 and synthesizing the generated rhythm sound with the ch1 audio signal will be described. Here, it is assumed that digital audio data such as a drum sound having a high sound pressure level is already stored in the audio data storage unit 4a as sampling data 1 and sampling data 2. The second embodiment of the present invention will be described on the assumption that the input terminal 1a is connected to an analog record player and an analog audio signal of ch1 is input and no audio signal is input to the other input terminals. FIG. 4 is a flowchart for explaining the operation of the mixing apparatus of the second embodiment.

  Step 21 shown in FIG. 4 is a step of pressing the operation storage button 14. The DJ presses the operation storage button 14. Step 22 is a step of operating the sampler button 12 and the sampler button 13. The DJ performs an operation of pressing the sampler button 12 (hereinafter referred to as operation 3) and then an operation of pressing the sampler button 13 (hereinafter referred to as operation 4).

  In step 23, the control unit 8 performs control to store information indicating the operation procedure by the sampler button 12 and the sampler button 13 in the operation procedure storage unit 8a. The control unit 8 performs control to store information indicating the operation procedure of the operation 3 by the sampler button 12 and the operation 4 by the sampler button 13 in the operation procedure storage unit 8a.

Step 24 is a step of setting the number of times to reproduce the operation procedure according to the information indicating the operation procedure stored in the operation procedure storage unit 8a by the reproduction number setting knob 16. The DJ operates the reproduction number setting knob 16 to set the number of times to reproduce the operation procedures of the operation 3 and the operation 4 according to the information indicating the operation procedure stored in the operation procedure storage unit 8a. In this embodiment, the number of times the operation procedure is reproduced is set to 10. In this case, the operation procedure from the operation 3 to the operation 4 is continuously reproduced 10 times.

  Step 25 is a step of setting the number of beats for reproducing operation 3 and operation 4 according to the beat by the beat number setting knob 18. For example, when the DJ sets the number of beats to 1, the mixing apparatus according to the present embodiment can reproduce the operation of the operation 1 or the operation 2 every time one beat is generated. When set, for example, when the number of beats is set to 4, the operation 3 or the operation 4 can be reproduced every time four beats are generated. In this embodiment, the number of beats is set to 4. In this case, the mixing apparatus according to the second embodiment reproduces the operation 4 when four beats are generated after the operation 3 is reproduced.

  Step 26 is a step of selecting ch1 by the selection switch 10a. When an operation instruction for selecting ch1 is input from the operation unit 9, the control unit 8 controls the switching unit 2 to switch so as to select the analog audio signal of ch1 input from the input terminal 1a. The analog audio signal of ch1 input from the input terminal 10a is converted into digital audio data by the ADC 3 and input to the sound effect processing unit 4 and the beat detection unit 7.

  Step 27 is a step in which the beat detector 7 detects a beat from the input digital audio data. The beat detection unit 7 calculates a BPM from the detected beat, and inputs the calculated BPM to the control unit 8. The control unit 8 calculates a generation time T from the input BPM until a beat is generated.

  Step 28 is a step in which the control unit 8 determines whether or not the reproduction start button 15 of the operation unit 9 has been pressed. The DJ listens to the ch1 audio signal output from the mixing apparatus of the present embodiment, and presses the reproduction start button 15 when listening to the occurrence of a beat at the position where the sound effect is to be generated using the selection switch 10a. . If the reproduction start button 15 is pressed, the process proceeds to step 29.

  Step 29 is a step in which the control unit 8 performs control to reproduce the operation 3. The control unit 8 controls to read the sampling data 1 stored in the audio data storage unit 4a according to the operation information indicating the operation 3 stored in the operation procedure storage unit 8a.

  Step 30 is a step in which the control unit 8 determines whether or not the number of beats set in Step 25 has occurred. Since the number of beats is set to 4 in step 25, the control unit 8 performs the control to reproduce the operation 3 in order to reproduce the operation 4 when four beats are generated after performing the control to reproduce the operation 3. Then, it is determined whether or not a time obtained by quadrupling the occurrence time T calculated in step 27 has elapsed. If the number of beats set in step 25 is generated, the process proceeds to step 31.

  Step 31 is a step in which the control unit 8 performs control to reproduce the operation 4. The control unit 8 controls to read the sampling data 2 stored in the audio data storage unit 4a according to the operation information indicated by the operation 4 stored in the operation procedure storage unit 8a.

  Step 32 is a step in which the control unit 8 determines whether or not the number of times to reproduce the operation procedure set in Step 24 has been reached. In step 24, since the number of times the operation procedure is reproduced is set to 10 times, the control unit 8 determines whether or not the operation procedure of operation 3 and operation 4 has been reproduced 10 times. If it is not the number of times to reproduce the operation procedure set in step 24, the process proceeds to step 33.

  Step 33 is a step in which the control unit 8 determines whether or not the number of beats set in Step 25 has occurred. Since the number of beats is set to 4 in step 25, the control unit 8 performs the control to reproduce the operation 4 in order to reproduce the operation 3 when four beats are generated after performing the control to reproduce the operation 4. Then, it is determined whether or not a time obtained by quadrupling the occurrence time T calculated in step 27 has elapsed. If the number of beats set in step 25 has occurred, the process proceeds to step 29.

  In the second embodiment described above, the control unit 8 presses the sampler button 13 and the control for reproducing the operation 3 of pressing the sampler button 12 in accordance with the beat of the analog audio signal of ch1 input from the input terminal 1a. Control to reproduce operation 4 is performed. For this reason, the mixing apparatus of the present embodiment can output the ch1 analog audio signal in which the rhythm sound generated from the sampling data 1 and the sampling data 2 is synthesized in accordance with the beat of the ch1 analog audio signal.

  In the mixing apparatus of this embodiment described above, the digital audio data input to the sound effect processing unit 4 may be stored in a predetermined storage area of the audio data storage unit 4a. In this case, the control unit 8 stores in the audio data storage unit 4a digital digital data and information indicating the occurrence of a beat at a position where the beat detection unit 7 has detected a beat from the digital audio data. The control unit 8 performs control to read out the digital audio data and information indicating the occurrence of a beat from the audio data storage unit 4a, and reproduces the operation stored in the operation procedure storage unit 8a according to the information indicating the generation of a beat. You may make it control.

The block diagram which shows the structure of the mixing apparatus which is an Example of this invention. The figure which shows the operation part 9 of the mixing apparatus which is an Example of this invention. The flowchart explaining operation | movement of the mixing apparatus of 1st Example. The flowchart explaining operation | movement of the mixing apparatus of 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Input part, 1a ... Input terminal, 1b ... Input terminal, 1c ... Input terminal, 1d ... Input terminal, 1e ... Input terminal, 1f ... Input terminal, 2 ... Switching part, 3 ... ADC, 4 ... Sound effect processing , 4a ... audio data storage unit, 5 ... DAC, 6 ... output terminal, 7 ... beat detection unit, 8 ... control unit, 8a ... operation procedure storage unit, 9 ... operation unit 10a ... selection switch, 10b ... selection switch, 10c ... Selection switch, 11 ... Display section, 12 ... Sampler button, 13 ... Sampler button, 14 ... Operation memory button, 15 ... Reproduction start button, 16 ... Reproduction count setting knob, 17a ... Ch fader, 17b ... Ch fader, 17c ... ch fader, 18 ... beat setting knob

Claims (2)

An input unit that inputs a plurality of audio signals, an acoustic effect processing unit that performs acoustic effect processing on the audio signal input from the input unit, and an audio signal that has been subjected to acoustic effect processing by the acoustic effect processing unit is output In a mixing device having an output unit,
A selection unit for selecting an audio signal input from the input unit;
A switching unit that switches the audio signal input to the sound effect processing unit to the audio signal selected by the selection unit;
A beat detection unit for detecting a beat of the audio signal selected by the selection unit;
An operation procedure storage unit for storing information indicating an operation procedure for selecting an audio signal by the selection unit;
A control unit that controls switching of an audio signal by the switching unit according to information indicating an operation procedure of the selection unit stored in the operation procedure storage unit in accordance with the beat detected by the beat detection unit. A mixing device. An input unit that inputs a plurality of audio signals, an acoustic effect processing unit that performs acoustic effect processing on the audio signal input from the input unit, and an audio signal that has been subjected to acoustic effect processing by the acoustic effect processing unit is output In a mixing device having an output unit,
A selection unit for selecting an audio signal input from the input unit;
A beat detection unit for detecting a beat of the audio signal selected by the selection unit;
An audio data storage unit having a plurality of storage areas for storing audio signals;
A designation unit for designating audio signals stored in a plurality of storage areas of the audio data storage unit;
An operation procedure storage unit for storing information indicating an operation procedure for designating an audio signal stored in the storage area of the storage unit by the designation unit;
Control for reading out audio signals stored in a plurality of storage areas of the audio data storage unit according to information indicating the operation procedure of the designation unit stored in the operation procedure storage unit in accordance with the beat detected by the beat detection unit A mixing unit.

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