{
  "$type": "site.standard.document",
  "description": "To provide a sound signal generation device capable of artificially generating an engine sound signal indicating a realistic engine sound linked to running of an electric vehicle even when, for example, an engine is not mounted at all. A virtual engine rotation speed generation unit that acquires…",
  "path": "/patents/1323304",
  "publishedAt": "2022-07-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q5/008",
    "SOUND DESIGN LAB LLC"
  ],
  "textContent": "To provide a sound signal generation device capable of artificially generating an engine sound signal indicating a realistic engine sound linked to running of an electric vehicle even when, for example, an engine is not mounted at all. A virtual engine rotation speed generation unit that acquires accelerator opening data indicating an accelerator operation amount in the electric vehicle and running speed data indicating a vehicle running speed of the electric vehicle, calculates a virtual running speed of a virtual engine vehicle, modifies the virtual running speed on the basis of the running speed data, and calculates an engine rotation speed of a virtual engine on the basis of the modified virtual running speed, and an artificial engine sound generation unit that generates a sound signal for outputting an artificial engine sound corresponding to a running state of the electric vehicle on the basis of the accelerator operation amount.",
  "title": "SOUND SIGNAL GENERATION DEVICE, SOUND SIGNAL GENERATION METHOD, AND SOUND SIGNAL GENERATION PROGRAM"
}