Issue 3 (March 1931)

  1. Journal of the Society of Motion Picture Engineers — Cover InformationOpen access
  2. Journal of the Society of Motion Picture Engineers — Table of Contents InformationOpen access
  3. Recent Developments in RCA Photophone Portable Recording Equipment Original Research
  4. A Modern Laboratory for the Study of Sound Picture Problems Original Research
  5. The Depth of Field of Camera Lenses with Special Reference to Wide Film Original Research
  6. Two-Way Television Original Research
  7. A Truck Mounted Laboratory for the Diagnosis of Theater Acoustic Defects Original Research
  8. Some New RCA Photophone Studio Recording Equipment Original Research
  9. Materials for the Construction of Motion Picture Processing Apparatus Original Research
  10. Aiding the Theater Patron Who is Hard of Hearing Original Research
  11. Test Set for Servicing Sound Projection Equipment Original Research
  12. Cinematography with the Laryngoscope Original Research
  13. The Call Announcer: A Telephone Application of Sound Picture Ideas Original Research
  14. Committee Activities InformationOpen access
  15. Abstracts InformationOpen access
  16. Abstracts of Recent U. S. Patents InformationOpen access
  17. Book Reviews InformationOpen access
  18. Society of Motion Picture Engineers: Officers 1930–1931 InformationOpen access
  19. Committees 1930–1931 InformationOpen access
  20. Contributors to this Issue InformationOpen access
  21. Society Announcements InformationOpen access
  22. Open Forum InformationOpen access