
Audio Forensic Blog — Case Notes, Methods & Guides
The Audio Forensic Blog at audioforensicexpert.eu publishes case notes and technical guides on recorded evidence, forensic audio methods, codecs, spectrograms, auditory perception and voice analysis. The articles are intended to explain specific technical questions and methodological limits without replacing the dedicated service pages for audio authentication, forensic voice comparison, restoration, deepfake audio analysis or legal audio consulting.
Editorial content for an international English-language audience outside Italy · Last substantive review: 28 August 2026
Browse the Audio Forensic Blog by Topic
The guides below are grouped by technical question so that file-integrity issues, acoustic interpretation and voice-related case material remain clearly separated. For the examination framework used across these topics, see the forensic audio methodology and best-practice references.
File Integrity, Encoding and Authentication
These articles explain how a file may change through recording, export, compression, conversion or extraction, and why those traces must be interpreted in context rather than treated as automatic proof of manipulation.
- Codec Lineage in Forensic Audio— encoding, transcoding and re-encoding history.
- Audio Artifacts— compression, acquisition, processing and playback artifacts.
- Audio Extracted from Video— direct stream separation versus derived files.
- How to Read a Spectrogram in Forensic Audio— cautious interpretation of time-frequency patterns.
For a case-specific integrity or editing question, see Audio Authentication.
Speech, Hearing and Acoustic Interpretation
These guides address how sound is perceived and how ambiguous or impulsive acoustic events should be described without turning a listening impression or a single visual feature into a forensic conclusion.
- Auditory Pareidolia in Audio Recordings— expectation, ambiguity and perceptual interpretation.
- Human Hearing and Sound Perception— sensitivity, masking, loudness and listening limits.
- Does a Hand Clap Generate a Shock Wave? A Forensic Audio Case Study— de-identified case study on disputed impulsive sounds, competing acoustic hypotheses and interpretation limits.
If the practical issue is speech clarity in a degraded recording, see Forensic Audio Restoration.
Voice Analysis and Case-Based Examination
Case-based material shows how acoustic-temporal or voice observations can be documented while keeping descriptive findings separate from unsupported conclusions about identity, truthfulness or responsibility.
- Garlasco Case: Multidisciplinary Analysis of Public Interviews— descriptive voice, speech-density and non-verbal observations from public material.
For questioned-versus-reference speaker material, see Forensic Voice Comparison. For suspected synthetic or cloned speech, see Deepfake Audio Analysis.
For matters involving report review, technical strategy or several overlapping audio questions, see Legal Audio Consulting.
Technical case study by Roberto Ruggeri, forensic audio specialist. Last substantive review: 28 August 2026. Yes. A hand clap can…
Technical guide by Roberto Ruggeri, forensic audio specialist. Last substantive review: 28 August 2026. Codec lineage is a practical way…
Analysis conceived and coordinated by Dr Marco Strano, with contributions by Lucia Codato on non-verbal communication and Roberto Ruggeri on…
An audio artifact is a feature introduced or materially shaped by the recording, conversion, coding, transmission, processing or playback chain…
Separating an audio stream from a video file is not one single technical operation. The result depends on whether the…
Technical guide by Roberto Ruggeri, forensic audio specialist. Last substantive review: 27 August 2026. Auditory pareidolia means perceiving a meaningful…
Technical guide by Roberto Ruggeri, forensic audio specialist. Last substantive review: 27 August 2026. Human hearing is the process by…
Technical guide by Roberto Ruggeri, forensic audio specialist. Last substantive review: 27 August 2026. A spectrogram is a time-frequency representation…