A step change in processes的用法和样例：
- In television, a short duration variation in the luminance following a step change in the video signal.
- Soundscape represents a step change in the field of environmental acoustics in that it combines physical, social and psychological approaches.
- This is effective in preventing low frequency oscillation (of a few Hz or less) and has a particular effect on the rising waveform for a step change in pressure.
- "The quality of content, like video, is improving as are the handsets.It's a step change in the level of service," Vodafone's Graham Ferguson told a forum in this Riviera town.