Reducing the Costs of TV Commercials by Use of Time Compressions
研究了时间压缩技术（将30秒广告压缩至24秒播放，音调不变且观众无感知）对广告回忆率的影响，发现压缩广告的未提示回忆率提高36%，提示回忆率提高40%。
The amount of time needed to broadcast a television commercial can be reduced by means of an electronic process called time compression. A 30-second commercial can be broadcast in 24 seconds by this process. No shift occurs in voice pitch and subjects are not aware that commercials have been altered. Recall scores are substantially higher for time compressed commercials than for their normal speed counterparts. There is a 36% increase in unaided recall scores and a 40% increase in aided recall scores.