18 Feb A collection of terms or related knowledge.

• Active Sound: A device that uses a speaker or other actuator to create a virtual exhaust sound.
• Generator: A device in the housing including a speaker that generates sound ( ≒ speaker )
• POP: A sound called popcorn sound because it is similar to the sound made when popcorn is popped. The sound produced when the accelerator is pressed and released. The length and intensity of the popcorn sound may vary depending on the situation and engine condition.
• Tone: The standard for expressing the high and low of the exhaust sound. A high tone means a high tone, and a low tone means a low tone.
• Idle sound: Engine status when the engine is on and the accelerator pedal is not pressed. Indicates idle state.
• V8: Refers to an engine that has 8 cylinders, that is, the number of combustion chambers, and 4 in series are symmetrical to each other in a V shape. As the number of cylinders is large, the character of the sound is also produced in various ways. It is an engine that makes a mark with the exhaust sound such as a strong AMG with a very low tone and an M with a very good mid-range.
  In-line 6-cylinder (≒ Inline 6): The number of combustion chambers (cylinders) is 6, and it is an engine that is arranged in a row. It is characterized by its characteristic light and sharp exhaust sound.
• 4-cylinder: One of the most commonly used engines. The number of cylinders is 4 and they are arranged in series.
  Horizontally opposed engine (≒ boxer engine ≒ flat engine): An engine mounted on vehicles such as Subaru’s Impreza and Porsche’s 911. there are advantages to On the other hand, in the case of a horizontally opposed six-cylinder, it produces a smooth treble based on an excellent rotational texture.