Signal generation device, signal generation method, and program
A technique is provided to present more intuitive settings of a haptic sensation. In particular, a signal generation device is provided that includes an input unit to accept setting information including information indicative of the direction of the haptic sensation to be presented by a target object; and a generation unit that generates a waveform signal for presenting the haptic sensation based on the setting information accepted by the input unit.
1 . A signal generation device comprising:
an input unit configured to accept setting information that includes first information indicative of a first direction and a second direction of a haptic sensation to be presented by a target object, and second information indicative of an intensity of the haptic sensation to be presented by the target object, the first direction, the second direction and the intensity being associated with a time on a timeline of the haptic sensation to be presented by the target object;
a generation unit configured to generate a waveform signal to generate the haptic sensation based on the setting information accepted by the input unit;
an image generating unit configured to generate an image including a waveform with a time axis representing the timeline, the waveform indicating the first information and the second information of the haptic sensation at each time on the timeline, the first direction and the second direction being indicated by a first side of the time axis and a second side of the time axis that is opposite to the first side; and
an operation unit configured to edit the waveform in the image to change the setting information.
2 . The signal generation device according to claim 1 , wherein the setting information includes information based on a user input received by a user interface.
3 . The signal generation device according to claim 1 , wherein the setting information includes information based on a text input received by a user interface.
4 . The signal generation device according to claim 1 , wherein the setting information includes information based on image operations received by a user interface.
5 . The signal generation device according to claim 1 , wherein the setting information includes information based on at least one of audio data and video data.
6 . The signal generation device according to claim 5 , wherein the setting information includes information based on data after filtering the at least one of the audio data and the video data.
7 . The signal generation device according to claim 5 , wherein the setting information includes information based on features extracted from the at least one of the audio data and the video data.
8 . The signal generation device according to claim 7 , wherein the setting information includes information of a haptic sensation identified from at least one of the audio data and the video data using a model trained by using the features extracted from the at least one of the audio data and the video data as explanatory variables and the haptic sensation as an objective variable.
9 . The signal generation device according to claim 1 , wherein the generation unit is configured to generate the waveform signal based on a combination of basic waveform signals for presenting the haptic sensation in a predetermined direction by the target object.
10 . The signal generation device according to claim 1 , wherein the first direction of the haptic sensation is one of an up-down direction, a right-left direction, a forward-backward direction, or an oblique direction.
11 . The signal generation device according to claim 1 , further comprising at least one processor configured to execute a signal generation program stored on memory to configure a computer including the at least one processor as the generation unit to generate the waveform signal to generate the haptic sensation.
12 . The signal generation device according to claim 1 , wherein:
the operation unit is configured to perform an operation to change the first direction to a third direction; and
the image generating unit is configured to generate the image including the waveform indicating the third direction, the second direction, and the intensity of the haptic sensation at each time on the timeline, with the third direction and the second direction being indicated by the first side of the time axis and the second side of the time axis respectively.
13 . A signal generation method comprising:
accepting, by at least one processor, setting information that includes first information indicative of a first direction and a second direction of a haptic sensation to be presented by a target object, and second information indictive of an intensity of the haptic sensation to be presented by the target object, the first direction, the second direction and the intensity being associated with a time on a timeline of the haptic sensation to be presented by the target object;
generating, by the at least one processor, a waveform signal to present the haptic sensation based on the setting information that is accepted;
generating, by the at least one processor, an image including a waveform with a time axis representing the timeline, the waveform indicating the first information and the second information of the haptic sensation at each time on the timeline, the first direction and the second direction being indicated by a first side of the time axis and a second side of the time axis that is opposite to the first side; and
editing, by the at least one processor, the waveform in the image to change the setting information.
14 . The signal generation method according to claim 13 , further comprising generating, by the at least one processor, the waveform signal based on a combination of basic waveform signals for presenting the haptic sensation in a predetermined direction by the target object.
15 . The signal generation method according to claim 13 , wherein the first direction of the haptic sensation is one of an up-down direction, a right-left direction, a forward-backward direction, or an oblique direction.
16 . The signal generation method according to claim 13 , further comprising receiving, by a user interface, a user input that indicates the setting information.
17 . A signal generation system comprising:
memory that stores software code for a signal generation program; and
at least one processor that, when executing the software code for the signal generation program, configures a computer to provide:
an input unit configured to accept setting information that includes first information indicative of a first direction and a second direction of a haptic sensation to be presented by a target object, and second information indicative of an intensity of the haptic sensation to be presented by the target object, the first direction, the second direction and the intensity being associated with a time on a timeline of the haptic sensation to be presented by the target object;
a generation unit configured to generate a waveform signal to present the haptic sensation based on the setting information accepted by the input unit;
an image generating unit configured to generate an image including a waveform with a time axis representing the timeline, the waveform indicating the first information and the second information of the haptic sensation at each time on the timeline, the first direction and the second direction being indicated by a first side of the time axis and a second side of the time axis that is opposite to the first side; and
an operation unit configured to edit the waveform in the image to change the setting information.
18 . The signal generation system according to claim 17 , wherein the at least one processor, when executing the software code for the signal generation program, is further configured to provide the generation unit to generate the waveform signal based on a combination of basic waveform signals for presenting the haptic sensation in a predetermined direction by the target object.
19 . The signal generation system according to claim 17 , wherein the direction of the haptic sensation is one of an up-down direction, a right-left direction, a forward-backward direction, or an oblique direction.