Vol. 49 No. 2 (2021)

Editorial

• It is time for recovery and restart by setting a new soundscape

  Umberto Berardi

  • 5-6

Article - Bio-Acoustics

• Automated detection of cannabis intoxication from speech

  Arian Shamei, Peter R. Sullivan, Yadong Liu, Muhammad Abdul-Mageed, Bryan Gick

  • 7-12

Article - Engineering Acoustics / Noise Control

• Influence Of Different Distribution Patterns Of Holes On Single Micro-Perforated Panel Sound Absorption Behaviour

  Hatem Teleb, Mohamed Abd-Elbasseer, Abd Elfattah A Mahmoud, Hatem Kh. Mohamed

  • 13-22

• Shape Optimization Of Extended Tube Muffler Using Threshold Acceptance, Simulated Annealing And FEM Methods

  khamchane abdelkader, Youcef Khelfaoui, Brahim Hamtache

  • 23-32

Article - Psychological Acoustics

• Screening For Dichotic Acoustic Context And Headphones In Online Crowdsourced Hearing Studies

  Toso Pankovski

  • 33-42

• Farewell notes for Professor Ramani Ramakrishnan's retirement

  • 43-47

• Minutes of the Spring 2021 CAA Board of Directors Meeting

  • 48-52

• Acoustic Week in Canada 2021 Sherbrooke Conference Announcement

  • 53-54