Vibration signal generation device

Abstract

Even if a song has little to no relaxing or stimulating effect, the vibrations based on that song can make it possible to induce the desired effect on the listener's mental and physical state. [Solution] As a vibration signal to vibrate a vibration generating device during music playback, audio signals of a frequency band corresponding to the mode are extracted from the audio signals of the music, and a vibration signal is generated based on these extracted audio signals.

Description

Technical Field

[0001] The present invention relates to a vibration signal generation device.

Background Art

[0002] Techniques have been developed for playing music and applying vibrations based on the music to the listeners of the music. For example, Patent Document 1 discloses a technique of transmitting a low-frequency sound signal converted by signal processing from an audio signal of music played on a car audio for a four-wheeled vehicle to a transducer incorporated in a lumbar cushion, and oscillating the low-frequency sound by the transducer. And Patent Document 1 discloses using relaxing music or a relaxing vibration pattern to obtain a relaxation effect, or using music effective for awakening or a vibration pattern effective for awakening to obtain an awakening effect.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, Patent Document 1 does not disclose a method of obtaining a relaxation effect or an awakening effect using music that is not effective for either relaxation or awakening.

[0005] An example of the problem to be solved by the present invention is to enable a desired effect to be given to the physical and mental state of the listener of the music by vibrations based on the music, even for music having little relaxation effect or awakening effect.

Means for Solving the Problems

[0006] To solve the above problems, the invention described in claim 1 is a vibration signal generating device that generates a vibration signal for vibrating a vibration generating device during the playback of a musical piece, comprising: a mode determination unit that determines one mode from a plurality of modes; an extraction unit that extracts an audio signal of a bandwidth corresponding to the mode determined by the mode determination unit from the audio signal of the musical piece; and a vibration signal that generates a vibration signal based on the audio signal extracted by the extraction unit.

[0007] The invention described in claim 11 is a vibration signal generation method performed by a computer for generating a vibration signal to vibrate a vibration generating device during playback of a musical piece, comprising: a mode determination step of determining one mode from a plurality of modes; an extraction step of extracting audio signals of a frequency band corresponding to the mode determined by the mode determination unit from the audio signals of the musical piece; and a generation step of generating a vibration signal based on the audio signals extracted by the extraction unit.

[0008] The invention described in claim 12 involves having a computer execute the vibration signal generation method described in claim 11.

[0009] The invention described in claim 13 stores the vibration signal generation program described in claim 12. [Brief explanation of the drawing]

[0010] [Figure 1] This figure shows an audio signal / vibration signal output device 100 according to one embodiment of the present invention. [Figure 2] This figure shows an example of processing operation in an audio signal / vibration signal output device 100 according to one embodiment of the present invention. [Figure 3] This figure shows a vibration signal generation unit 130 according to one embodiment of the present invention. [Figure 4] This figure shows an example of the processing operation in the vibration signal generation unit 130 according to one embodiment of the present invention. [Figure 5] This figure shows an example of a frequency range of vibrations that can have a relaxing effect. [Figure 6]This figure shows a vibration signal output unit 140 according to one embodiment of the present invention. [Figure 7] This figure shows an example of processing operation in the vibration signal output unit 140 according to one embodiment of the present invention. [Figure 8] This figure shows an example of the delay time between vibrations and sound, which can have a relaxing effect. [Figure 9] This diagram illustrates the resetting of the pre-set second time. [Modes for carrying out the invention]

[0011] A vibration signal generating device according to one embodiment of the present invention is a vibration signal generating device that generates a vibration signal to vibrate a vibration generating device during the playback of a musical piece, and comprises a mode determination unit that determines one mode from a plurality of modes, an extraction unit that extracts an audio signal of a frequency band corresponding to the mode determined by the mode determination unit from the audio signal of the musical piece, and a generation unit that generates a vibration signal based on the audio signal extracted by the extraction unit. Therefore, in this embodiment, it is possible to provide the listener of the musical piece with vibrations of a frequency band corresponding to the desired effect. As a result, in this embodiment, even if a musical piece has little to no relaxing or stimulating effect, it is possible to provide the desired effect to the physical and mental state of the listener of the musical piece through vibrations based on that musical piece.

[0012] The plurality of modes may include a first mode intended for relaxation, and if the determined mode is the first mode, the extraction unit may extract the audio signal of a first frequency band from the audio signal of the music, and at least a portion of the first frequency band may have a lower frequency than the frequency bands for the other modes. Furthermore, the plurality of modes may further include a second mode intended for awakening, and if the determined mode is the second mode, the extraction unit may extract the audio signal of a second frequency band from the audio signal of the music, and at least a portion of the second frequency band may have a higher frequency than the frequency bands for the other modes. Also, at least a portion of the second frequency band may have a higher frequency than the first frequency band. In this way, it becomes possible to provide the user with vibrations in a frequency band corresponding to the desired effect. As a result, in this embodiment, even with music that has little to no relaxation or awakening effect, it is possible to give the desired effect to the listener's mental and physical state through vibrations based on the music.

[0013] The vibration generating device may be embedded in a seat where the user can sit. In this way, it becomes possible to exert the desired effect on the user's physical and mental state while the user is seated.

[0014] Furthermore, the vibration generating device includes a first vibration generating device embedded in a portion facing the back of the user seated in the seat, and a second vibration generating device embedded in a portion facing the waist of the user seated in the seat, and the vibration signal includes a first vibration signal for vibrating the first vibration generating device and a second vibration signal for vibrating the second vibration generating device, and the first bandwidth for the second vibration signal may be narrower than the first bandwidth for the first vibration signal. In this way, it becomes possible to generate vibrations suitable for each part of the body, and it becomes possible to provide a more effective relaxation effect to the user.

[0015] If the determined mode is the first mode, the vibration signal generation unit may generate the first vibration signal and the second vibration signal such that the intensity of the vibration generated by the first vibration generator is greater than the intensity of the vibration generated by the second vibration generator. Further, if the determined mode is the second mode, the vibration signal generation unit may generate the first vibration signal and the second vibration signal such that the intensity of the vibration generated by the second vibration generator is greater than the intensity of the vibration generated by the first vibration generator. By doing so, it becomes possible to more effectively give the user a relaxation effect or an awakening effect.

[0016] The vibration signal generation device may further include a biological signal acquisition unit that acquires biological information of a user sitting on the seat, and the mode determination unit may determine the mode based on the acquired biological information. By doing so, it becomes possible to give the user an effect according to the physical and mental state of the user.

[0017] Also, a vibration signal generation method according to an embodiment of the present invention is a vibration signal generation method executed by a computer to generate a vibration signal for vibrating a vibration generator during reproduction of a music piece, the method including: a mode determination step of determining one mode from a plurality of modes; an extraction step of extracting an audio signal in a band corresponding to the mode determined by the mode determination unit from the audio signal of the music piece; and a generation step of generating a vibration signal based on the audio signal extracted by the extraction unit. Therefore, in the present embodiment, it is possible to give the listener of the music piece vibrations in a band corresponding to a desired effect. As a result, in the present embodiment, even for a music piece having almost no relaxation effect or awakening effect, it is possible to give a desired effect to the physical and mental state of the listener of the music piece by vibrations based on the music piece.

[0018] Also, a vibration signal generation program according to an embodiment of the present invention causes a computer to execute the above-described vibration signal generation method. Therefore, in this embodiment, even for a piece of music that has almost no relaxation effect or arousal effect, it is possible to give a desired effect to the physical and mental state of the listener of the music by means of vibration based on the music.

[0019] Also, a computer-readable storage medium according to an embodiment of the present invention stores the above-described vibration signal generation program. Therefore, in this embodiment, in addition to being incorporated into a device, the above-described vibration signal generation program can be distributed alone, and it becomes possible to easily perform version updates and the like.

Example

[0020] <Audio signal / vibration signal output device 100> FIG. 1 is a diagram showing an audio signal / vibration signal output device 100 according to an embodiment of the present invention. The audio / vibration signal output device 100 according to this embodiment outputs the audio signal of the music to the speaker 200, and in addition, outputs a vibration signal generated based on the audio signal of the music to the vibration generator 300, and gives vibration to the listener (user) of the music, thereby giving a desired effect to the physical and mental state of the user.

[0021] The audio signal / vibration signal output device 100 according to this embodiment includes an audio signal output unit 110 that outputs an audio signal of a music, a mode determination unit 120 that determines one mode from a plurality of modes related to changes in the physical and mental state, a vibration signal generation unit 130 that generates a vibration signal from the audio signal of the music, and a vibration signal output unit 140 that outputs the vibration signal.

[0022] The audio signal output unit 110 acquires music data stored in a storage device, a storage medium such as a CD (Compact Disc), or the cloud, generates an audio signal of the music from the acquired data, and outputs the generated audio signal to the vibration signal generation unit 130 and the speaker 200.

[0023] The mode determination unit 120 determines one mode from a plurality of modes relating to changes in the physical and mental state. The mode determination unit 120 may, for example, determine the mode based on user input. In this case, for example, the audio signal / vibration signal output device 100 may have means for receiving input from the user. Alternatively, the audio signal / vibration signal output device 100 may have means for acquiring the characteristics of the music, and the mode determination unit 120 may determine the mode based on these characteristics of the music. Furthermore, the audio signal / vibration signal output device 100 may have means for learning through machine learning what effects the user seeks when playing music, and the mode determination unit 120 may determine the mode based on these learning results.

[0024] The vibration signal generation unit 130 acquires the audio signal output from the audio signal output unit 110 and generates a vibration signal from this audio signal. The vibration signal generation unit 130 extracts, for example, the low-frequency range (e.g., 20Hz to 100Hz) portion of the audio signal and generates a vibration signal based on this extracted portion. In this case, the vibration signal is a signal consisting of the low-frequency components of the audio signal. The vibration signal generation unit 130 may include, for example, a bandpass filter or a low-pass filter that extracts a portion of the audio signal. Alternatively, the vibration signal generation unit 130 may generate a vibration signal from the audio signal according to the mode determined by the mode determination unit 120, as detailed below.

[0025] The vibration signal output unit 140 outputs the vibration signal generated by the vibration signal generation unit 130 to the vibration generator 300. The vibration generator 300 is a device that generates vibrations based on the input vibration signal and is embedded, for example, in a seat where a user can sit. The vibration signal output unit 130 may output the vibration signal in synchronization with the audio signal output from the audio signal output unit 110, or, as detailed below, it may output the vibration signal with a time delay from the time synchronized with the audio signal output from the audio signal output unit 110, corresponding to the mode determined by the mode determination unit 120.

[0026] Thus, the audio signal / vibration signal output device 100 according to this embodiment outputs the sound of the music from the speaker 200 and generates vibrations based on the audio signal of the music using the vibration generator 300. As a result, in this embodiment, it is possible to provide the listener (user) of the music with vibrations based on the music.

[0027] Figure 2 shows an example of the processing operation in the audio signal / vibration signal output device 100 according to this embodiment. The audio signal output unit 110 outputs the audio signal of the music to the vibration signal generation unit 130 and the speaker 200 (step S201). The vibration signal generation unit 130 generates a vibration signal from the audio signal (step S202), and the vibration signal output unit 140 outputs the vibration signal generated by the vibration signal generation unit 130 to the vibration generator 300 (step S203).

[0028] <Frequency band of vibration signals and changes in mental and physical state> Figure 3 shows a vibration signal generation unit 130 according to one embodiment of the present invention. The vibration signal generation unit 130 according to this embodiment includes an extraction unit 131 and a generation unit 132. The extraction unit 131 extracts audio signals of a bandwidth corresponding to the mode determined by the mode determination unit 120, and the generation unit 132 generates a vibration signal based on the audio signals extracted by the extraction unit 131.

[0029] The inventor discovered that when users listened to music with a relaxing effect and were subjected to vibrations in the lower frequency range of the music's bass frequencies, the users' parasympathetic nervous system became more active, meaning they became more relaxed. The inventor also discovered that when users listened to music with an awakening effect and were subjected to vibrations in the higher frequency range of the music's bass frequencies, the users' sympathetic nervous system became more active, meaning they became more alert.

[0030] Furthermore, the inventor discovered that even with music that has little to no relaxing or stimulating effect (intermediate music), when a user listens to this music and is subjected to vibrations in the lower frequency range of the music's bass frequencies, the user's parasympathetic nervous system becomes more active, meaning the user relaxes. The inventor also discovered that when a user listens to this intermediate music and is subjected to vibrations in the higher frequency range of the music's bass frequencies, the user's sympathetic nervous system becomes more active, meaning the user becomes more alert.

[0031] Therefore, in this embodiment, the multiple modes include a relaxation mode (first mode) aimed at relaxing the user and an awakening mode (second mode) aimed at waking the user.

[0032] The extraction unit 131 then extracts the audio signal of the first band from the audio signal of the music if the mode determined by the mode determination unit 120 is the relaxation mode, and extracts the audio signal of the second band from the audio signal of the music if the mode determined by the mode determination unit 120 is the awakening mode. At this time, at least a portion of the first band has lower frequencies than the bands for the other modes, and at least a portion of the second band has higher frequencies than the bands for the other modes. In particular, the first band is a band that includes frequencies lower than the second band. At this time, the first band and the second band may or may not overlap.

[0033] The multiple modes may include modes other than the relaxation mode and the awakening mode. For example, the multiple modes may include a third mode that is neither intended for relaxation nor awakening. In this case, for example, if the mode determined by the mode determination unit 120 is the third mode, the extraction unit 131 should extract the audio signal of the third band from the music's audio signal, which includes frequencies higher than the first band and frequencies lower than the second band.

[0034] Furthermore, the audio signal / vibration signal output device 100 may also include a biometric information acquisition unit 150 that acquires the user's biometric information. The mode determination unit 120 may then determine the mode based on the biometric information acquired by the biometric information acquisition unit 150.

[0035] The biometric information acquisition unit 150 may, for example, acquire information about the user's heart rate as the user's biometric information. Information about the user's heart rate includes the user's heart rate and information about the user's heart rate variability (for example, LF (Low Frequency), HF (High Frequency), and the ratio of LF to HF, which is LF / HF). From the information about heart rate and heart rate variability, it is possible to know the user's physical and mental state. For example, when a person is relaxed, their heart rate is low, and when they are awake, their heart rate is high. Therefore, for example, the mode determination unit 120 may, when the biometric information acquired by the biometric information acquisition unit 150 indicates that the user is relaxed, determine the mode to awaken mode with the aim of awakening the user, and when the biometric information acquired by the biometric information acquisition unit 150 indicates that the user is awake, determine the mode to relax mode with the aim of relaxing the user. In this way, it becomes possible to provide the user with effects that correspond to the user's physical and mental state.

[0036] Figure 4 shows an example of processing operation in the vibration signal generation unit 130 according to this embodiment. The processing operation shown in Figure 4 is performed, for example, in step S202 of the processing operation shown in Figure 2. The processing operation shown in Figure 4 is the processing operation when the multiple modes include only the relaxation mode and the awakening mode.

[0037] If the mode determined by the mode determination unit 120 is the relaxation mode (step S401, relaxation mode), the extraction unit 131 extracts an audio signal in the first frequency band, and the generation unit 132 generates a vibration signal based on this extracted audio signal in the first frequency band (step S402). If the mode determined by the mode determination unit 120 is the awakening mode (step S401, awakening mode), the extraction unit 131 extracts an audio signal in the second frequency band, and the generation unit 132 generates a vibration signal based on this extracted audio signal in the second frequency band (step S403).

[0038] <Generating vibration signals for each body part that is subjected to vibration> The inventors discovered that different body parts produce different vibrations that can produce the desired effect. In particular, the frequency range of vibrations that can produce a relaxing effect on the user differs when vibrations are applied to the back and buttocks compared to when vibrations are applied to the waist and calves. Figure 5 shows an example of the frequency range of vibrations that can produce a relaxing effect. As shown in Figure 5, the frequency range of vibrations that can produce a relaxing effect is narrower when applied to the waist and calves compared to when applied to the back and buttocks.

[0039] Therefore, in one embodiment of the present invention, the vibration generating device 300 includes multiple vibration generating devices in order to apply vibration to multiple parts of the user's body, and is embedded, for example, in multiple parts of a seat on which the user can sit. In this embodiment, the vibration signal generated by the vibration signal generation unit 130 includes multiple vibration signals in order to cause the multiple vibration generating devices to vibrate independently.

[0040] For example, the vibration generator 300 includes a first vibration generator 310 that applies vibration to the user's back, a second vibration generator 320 that applies vibration to the user's waist, a third vibration generator 330 that applies vibration to the user's buttocks, and a fourth vibration generator 340 that applies vibration to the user's calves. For example, the first vibration generator 310 is embedded in a part facing the back of a user seated in a seat, the second vibration generator 320 is embedded in a part facing the waist of a user seated in a seat, the third vibration generator 330 is embedded in a part facing the buttocks of a user seated in a seat, and the fourth vibration generator 340 is embedded in a part facing the calves of a user seated in a seat.

[0041] For example, the vibration signal generated by the vibration signal generation unit 130 includes a first vibration signal for vibrating the first vibration generator 310, a second vibration signal for vibrating the second vibration generator 320, a third vibration signal for vibrating the third vibration generator 330, and a fourth vibration signal for vibrating the fourth vibration generator 340.

[0042] In this case, for example, the frequency distribution widths of the second and fourth vibration signals should be narrower than those of the first and third vibration signals. In other words, the first bandwidth for the second and fourth vibration signals should be narrower than the first bandwidth for the first and third vibration signals. By doing so, it becomes possible to generate vibrations suitable for each part of the body, making it possible to provide a more effective relaxation effect to the user.

[0043] <Timing of vibration signal output and changes in physical and mental state> Figure 6 shows a vibration signal output unit 140 according to one embodiment of the present invention. As described above, the vibration signal is a signal obtained by extracting a portion of the bandwidth of the audio signal of the music. Therefore, if delay processing is not performed on both the audio signal and the vibration signal after the signal is extracted, the audio signal and the vibration signal will be output in a synchronized state. However, the inventors have found that when a user is made to listen to music with a relaxing effect, and vibrations based on this music are not synchronized with the music but are given to the user at a time later than the music, the parasympathetic nervous system of the user becomes more active, that is, the user becomes more relaxed. Furthermore, the inventors have found that when a user is made to listen to music with an awakening effect, and vibrations based on this music are not synchronized with the music but are given to the user at a time earlier than the music, the sympathetic nervous system of the user becomes more active, that is, the user becomes more awakened.

[0044] Furthermore, the inventors discovered that when an intermediate piece of music is played to a user, and vibrations based on this music are not synchronized with the music but are applied to the user at a delayed timing, the user's parasympathetic nervous system becomes more active, meaning the user relaxes. The inventors also discovered that when an intermediate piece of music is played to a user, and vibrations based on this music are not synchronized with the music but are applied to the user at a delayed timing, the user's sympathetic nervous system becomes more active, meaning the user becomes more alert.

[0045] Therefore, the vibration signal output unit 140 according to this embodiment has an output timing adjustment unit 141. The output timing adjustment unit 141 shifts the vibration signal from a time synchronized with the music by a predetermined time according to the mode determined by the mode determination unit 120. As a result, the audio signal / vibration signal output device 100 according to this embodiment outputs the audio signal and vibration signal to the vibration generator 300 with a predetermined time delay between them.

[0046] For example, if the mode determined by the mode determination unit 120 is the relaxation mode, the audio signal / vibration signal output device 100 outputs the vibration signal with a delay of one time compared to the time synchronized with the audio signal of the music. If the mode determined by the mode determination unit 120 is the awakening mode, the device outputs the vibration signal with a delay of two times compared to the time synchronized with the audio signal of the music.

[0047] In this case, for example, if the mode determined by the mode determination unit 120 is the relaxation mode, the output timing adjustment unit 141 should delay the vibration signal by a first time interval from the audio signal of the music, and if the mode determined by the mode determination unit 120 is the awakening mode, it should delay the audio signal by a second time interval from the vibration signal of the music.

[0048] When the values ​​of the first time and the second time are large in relation to the tempo of the music, that is, the length of the beats in the music, the audio signal and the vibration signal may be too out of sync, which can be unpleasant for the user. Therefore, the audio signal / vibration signal output device 100 according to one embodiment of the present invention further includes a tempo information acquisition unit 160 that acquires information about the tempo of the music, such as the length of the beats in the music and the number of beats per unit time (for example, BPM (Beat Per Minute)). In this embodiment, the first time and the second time are determined to be smaller than a threshold based on this tempo information.

[0049] Generally, fast-paced music has a stimulating effect, and users listen to fast-paced music when they want to achieve this effect. However, when the second time value, which is the difference between the audio signal and the vibration signal, becomes large enough to be an order of magnitude smaller than the length of the beat, users will find the vibration unpleasant. Therefore, a good threshold would be, for example, an order of magnitude smaller than the length of the beat. In this case, the threshold should decrease as the tempo of the music increases.

[0050] Figure 7 shows an example of processing operation in the vibration signal output unit 140 according to this embodiment. The processing operation shown in Figure 7 is performed, for example, in step S203 of the processing operation shown in Figure 2. The processing operation shown in Figure 7 is the processing operation when the multiple modes include only the relaxation mode and the awakening mode.

[0051] If the mode determined by the mode determination unit 120 is the relaxation mode (step S701, relaxation mode), the audio signal / vibration signal output device 100 outputs the vibration signal with a delay of one time compared to the time it is synchronized with the audio signal of the music (step S702). If the mode determined by the mode determination unit 120 is the awakening mode (step S701, awakening mode), the audio signal / vibration signal output device 100 outputs the vibration signal with a delay of two time compared to the time it is synchronized with the audio signal of the music (step S703).

[0052] <Vibration output timing for each body part that receives vibration> The inventors discovered that different body parts produce different vibrations that can produce the desired effect. In particular, the delay time (i.e., the first time) between vibrations that can produce a relaxing effect on the user and sound differs when vibrations are applied to the back compared to when vibrations are applied to the buttocks. Figure 8 shows an example of the delay time between vibrations that can produce a relaxing effect and sound. As shown in Figure 8, the delay time between vibrations that can produce a relaxing effect and sound is shorter when applied to the back compared to the buttocks.

[0053] Therefore, in one embodiment of the present invention, the audio signal / vibration signal output device 100 delays the first vibration signal (a vibration signal for vibrating the first vibration signal that vibrates the user's back) compared to the third vibration signal (a vibration signal for vibrating the third vibration signal that vibrates the user's buttocks). In other words, in this embodiment, the first time difference between the audio signal and the vibration signal is shorter for the first vibration signal than for the third vibration signal. By doing so, it becomes possible to generate vibrations suitable for each part of the body, making it possible to provide a more effective relaxation effect to the user.

[0054] Similarly, the second time can also be varied for each vibration signal. For example, the first and second times, which are the time differences between the audio signal and the vibration signal, can be pre-set for each vibration signal.

[0055] As mentioned above, when the tempo of the music increases, the length of the beats becomes closer to the discrepancy between the audio signal and the vibration signal (first time, second time), causing the user to feel discomfort from the vibrations. Therefore, it is best to determine the first and second times so that they are smaller than the thresholds based on this tempo information.

[0056] However, as shown in Figure 9, if the threshold decreases as the tempo of the music increases (in Figure 9, as the BPM increases), and the second time is pre-set for each vibration signal, then when the tempo of the music exceeds a certain speed, the second time may become longer than the threshold. In such cases, it is advisable to readjust the value of the second time so that it is less than the threshold.

[0057] <Vibration intensity for each body part that is subjected to vibration> The inventor discovered that the effects of vibration differ depending on the part of the body. In particular, vibration applied to the back contributes more to relaxation, while vibration applied to the waist contributes more to alertness.

[0058] Therefore, in one embodiment of the present invention, the vibration signal output unit 140 has a vibration intensity adjustment unit 142. The vibration intensity adjustment unit 142 adjusts the first vibration signal (a vibration signal to vibrate the first vibration generator) and the second vibration signal (a vibration signal to vibrate the second vibration generator) so that if the mode determined by the mode determination unit 120 is the relaxation mode, the intensity of the vibration generated by the first vibration generator (a vibration generator that applies vibration to the user's back) is greater than the intensity of the vibration generated by the second vibration generator (a vibration generator that applies vibration to the user's waist), and if the mode determined by the mode determination unit 120 is the awakening mode, the intensity of the vibration generated by the second vibration generator is greater than the intensity of the vibration generated by the first vibration generator. For this reason, in this embodiment, even if the first vibration signal and the second vibration signal are vibration signals based on the same song, in relaxation mode the vibration applied to the back will be greater than the vibration applied to the waist, and in awakening mode the vibration applied to the waist will be greater than the vibration applied to the back. As a result, this embodiment makes it possible to more effectively provide users with relaxation and alertness effects.

[0059] The present invention has been described above with reference to preferred embodiments. While the present invention has been described with specific examples, various modifications and changes can be made to these examples without departing from the spirit and scope of the invention as described in the claims. [Explanation of Symbols]

[0060] 100 Audio signal / vibration signal output device 110 Audio signal output section 120 Mode Determination Unit 130 Vibration signal output section 131 Extraction part 132 Generation part 140 Vibration signal output section 141 Output timing adjustment section 142 Vibration intensity adjustment section 150 Biological Information Acquisition Unit 160 Tempo Information Acquisition Unit 200 speakers 300 Vibration Generator 310 First vibration generating device 320 Second vibration generator 330 Third vibration generating device 340 Fourth vibration generator

Claims

[Claim 1] A vibration signal generating device that generates vibration signals to vibrate a vibration generating device during music playback, A mode determination unit that selects one mode from multiple modes, An extraction unit extracts audio signals from the audio signals of the aforementioned music that correspond to the mode determined by the mode determination unit, A vibration signal generating device having a generating unit that generates a vibration signal based on the audio signal extracted by the extraction unit.

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