Publications

Pending research papers by BEK TEK LLC associates:

• "Identification of an Eccentricity in the Date/Time Metadata of a PAL MiniDV Recording" (Lacey, D. S. and Koenig, B. E.) [Accepted for publication in the Journal of Forensic Sciences with a tentative issue date of September 2008.]
• "Distinctiveness of Non-Standard VHS Head Parameters" (Koenig, B. E. and Lacey, D. S.) [Accepted for publication in the Journal of Forensic Identification with a tentative issue date of either January/February or March/April 2009]
• "Forensic Authentication of Digital Audio Recordings" [Peer reviewed; submitted to the Journal of the Audio Engineering Society on June 25, 2008 for their peer review and publication consideration.]
• Forensic analysis of the Toshiba DMR digital audio format: Detailed analysis of the file format completed. Draft of paper being prepared.
• Clipped peak restoration: Test recordings produced at various quantization levels and sampling rates. Analysis of data pending.
• Variance in the record head to erase head distance of a microcassette recorder: Test recordings produced and research conducted. Draft of paper being prepared.
• Forensic analysis of the RadioShack CVS digital audio format: Detailed analysis of the file format completed.

Published, peer-reviewed research papers by BEK TEK LLC associates:

[NOTE: Neither BEK TEK LLC nor its associates profit in any way from the sale of any of the articles linked to below. The links are provided simply as a convenience to those who wish to obtain copies of the papers. For those articles which are linked to directly via websites or as PDFs, they are freely-available or non-copyrighted, or are being provided with permission of the respective journal's editor.]

• "A Digital System for Imaging Bitter Patterns" (2008; Koenig, B. E., Lacey D. S., and Killion, S.A.) Journal of Forensic Identification. 58:2:238-264; 58:3:281-282.
• "Audio Record and Playback Characteristics of Small Solid-State Recorders." (2007; Koenig, B. E. and Lacey, D. S.) Journal of Forensic Identification. 57:4:582-598.
• "Forensic Enhancement of Digital Audio Recordings." (2007; Koenig, B. E., Lacey, D. S., and Killion, S.A.) Journal of the Audio Engineering Society. 55:5:352-371. [Link for Purchase]
• "Fundamental Frequency Analysis of a Metal Baseball Bat." (2007; Marr, K. W. and Koenig, B. E.) Forensic Science Communications. 9:1 (January). [Direct Link]
• "Video and Audio Characteristics in VHS Over-Recordings." (2006; Koenig, B. E., Lacey, D. S., and Herold, N.) Forensic Science Communications. 8:3 (July). [Direct Link]
• "Burning Digital Audio Files to Standard Audio Compact Discs: More Than Drag and Drop." (2005; Lacey, D. S.) NATIA News. Summer 2005 Issue.
• "Procedures for the Playback of the Initial Frames of VHS Video Cassettes." (2004; Koenig, B. E.) NATIA News. Summer 2004 Issue.
• "Analysis of the Radio Shack Micro-30 and the Olympus Pearlcorder S950 Time Code". (2004; Koenig, B. E., Lacey, D. S., and Killion, S. A.) Journal of Forensic Identification. 54:4:442-451. "Authors' Response to Letter". Journal of Forensic Identification. 54:6:629-632.
• "Equipping the Modern Audio-Video Forensic Laboratory." (2003; Koenig, B. E., Lacey, D. S., and Herold, N.) Forensic Science Communications. 5:2 (April). [Direct Link]
• "Signal Convolution of Recorded Free-Field Gunshot Sounds." (1998; Koenig, B. E., Hoffman, S. M., Nakasone, H., and Beck, S. D.) Journal of the Audio Engineering Society. [Link for Purchase]
• "Analysis of Hang-up Transients for the Same Model Telephone." (1996; Merrill, S. B. and Koenig, B. E.) Journal of Forensic Identification. 46:3:294-321.
• "Determination of the Frequency Characteristics of Filters." (1995; Koenig, B. E. and Merrill, S. B.) Journal of Forensic Identification. 45:1:51-68.
• "Selected Topics in Forensic Voice Identification." (1993; Koenig, B. E.) Crime Laboratory Digest. 20:4:78-81.
• "Frequency Measurement of Alternating Current." (1992; Koenig, B. E.) Journal of Forensic Identification. 42:5:408-411.
• "Reel Periodicity Determinations in Authenticity Examinations." (1992; Koenig, B. E.) Journal of Forensic Identification. 42:3:237-247.
• "Voiceprints - Believe It or Not." (1991; Koenig, B. E.) Detective. Spring/Summer issue, pp 8-11.
• "Serial Time Code Analysis in Authenticity Determinations." (1991; Koenig, B. E.) Journal of Forensic Identification. 41:3:179-189.
• "Diagonal Erase Head Marks - An Anomaly." (1991; Koenig, B. E. and Ryan, J. J., Jr.) Journal of Forensic Identification. 41:2:96-101.
• "Tape Duplication Determination in Authenticity Examinations through Analysis of AC Frequencies." (1990; Koenig, B. E.) Crime Laboratory Digest. 17:4:78-81.
• "Authentication of Forensic Audio Recordings." (1990; Koenig, B. E.) Journal of the Audio Engineering Society. 38:1/2:3-33. [Link for Purchase]
• "An Introduction to Single Channel FFT Analysis." (1989; Wallace, A. Jr. and Koenig, B. E.) Crime Laboratory Digest. 16:2:33-39.
• "Enhancement of Forensic Audio Recordings." (1988; Koenig. B. E.) Journal of the Audio Engineering Society. 36:11:884 894. [Link for Purchase]
• "Tape Recorder Azimuth Misalignment." (1988; Koenig, B. E.) Crime Laboratory Digest. 15:2:44 54.
• "Measurement of Recorder Speed Changes in Authenticity Examinations." (1987; Koenig, B. E. and Kohus, B. A.) Crime Laboratory Digest. 14:4:139 152.
• "Reply to 'Some Fundamental Considerations Regarding Voice Identification.'" (1987; Koenig, B. E., Ritenour, D. V. Jr., Kohus, B. A., and Kelly, A. S.) Journal of the Acoustical Society of America. 82:688-689. [Link for Purchase]
• "Making Effective Forensic Audio Tape Recordings." (1987; Koenig, B. E.) FBI Law Enforcement Bulletin. 56:5:10-18.
• "Spectrographic Voice Identification." (1986; Koenig, B. E.) Crime Laboratory Digest. 13:4:105-118.
• "Spectrographic Voice Identification: A Forensic Survey." (1986; Koenig, B. E.) Journal of the Acoustical Society of America. 79:2088-2090. [Link for Purchase]
• "Acoustic Gunshot Analysis - The Kennedy Assassination and Beyond." (1983; Koenig, B. E.) FBI Law Enforcement Bulletin. 52:11:1-9, 52:12:1-9. Reprinted (1985) in the International Criminal Police Review. 40:384:2-11, 40:385:43-53.
[Downloadable PDF (32.5 MB)]
• "Overview of the Federal Bureau of Investigation's Technical Analyses of Forensic Tape Recordings, Particularly in Aviation Related Investigations." (1983; Koenig, B. E.) Journal of Air Law and Commerce. The Seventeenth Annual Air Law Symposium.
• "Review Requested by the Department of Justice of the Acoustical Reports Published by the House Select Committee on Assassinations." (1980; Koenig, B. E., et al.) Released directly to the public by the U.S. Department of Justice, Washington, D.C.
• "Speaker Identification." (1980; Koenig, B. E.) FBI Law Enforcement Bulletin. 49:1:1-4, 49:2:20-22.