The September JASA Express Letters cover features figure 3 of “Moving source depth estimation in deep ocean direct arrival zone with a horizontal line array,” by Feilong Zhu, Fenghua Li, Yanjun Zhang, Bo Zhang, Wen Li, and Tongchen Wang. The image depicts the horizontal line array beam output power in sine of the arrival angle and time.

This month’s issue also included a few Editor’s Picks you don’t want to miss:

• “In-process volumetric sensing of defects in multiple parts during powder bed fusion using ultrasound,” by Nathan J. Kizer, Corey J. Dickman, Abdalla R. Nassar, Edward W. Reutzel, and Christopher M. Kube.
• “Improved snapshot-deficient active target localization using the knowledge-aided covariance of reverberation,” by He Wang, Ting Zhang, and Hangfang Zhao.
• “Underwater source ranging by Siamese network aided semi-supervised learning,” by Hao Wen, Chengzhu Yang, Daowei Dou, Lijun Xu, and Yuchen Jiao.
• “Accent rating of vocoded foreign-accented speech by native listeners,” by Jing Yang, Jaskirat Sidhu, Gabrielle Totino, Sarah McKim, and Li Xu.

Browse the rest of the issue at https://pubs.aip.org/asa/jel/issue/3/9.