倍速

1. Origins, structure, and basic meaning

• Structure: Spelling: 倍速. Reading: ばいそく. Core meaning: playback speed.
• Basic usage: Representative examples: 長い説明動画を一・五倍速で再生した / 音声を倍速にすると、細かな発音が聞き取りにくい.

2. Common pitfalls and similar expressions

• A multiple of playback speed
  • It gives a multiple of the normal playback rate, as in 一・五倍速. The focus is a speed setting with a reference rate and multiplier, not merely the impression of being fast.