Audio Restoration and Forensics Glossary

What is Language Identification? Language identification is the process of determining the language of a given text or speech sample. It is a crucial task in various fields such as natural language processing, machine translation, speech recognition, and forensic investigations. Language identification algorithms analyze the linguistic features of a text or speech sample to identify … Read more

What is a wax cylinder? A wax cylinder is a type of recording medium used in the late 19th and early 20th centuries for audio recordings. It consists of a hollow cylinder made of wax, onto which sound waves are etched or engraved. These cylinders were one of the earliest forms of audio recording technology, … Read more

What is Dynamic Range Expansion? Dynamic Range Expansion is a signal processing technique used in audio engineering to increase the difference between the quietest and loudest parts of a sound signal. This process aims to enhance the overall dynamic range of the audio, allowing for a more balanced and natural sound reproduction. How does Dynamic … Read more

What is an Expert Witness? An expert witness is a professional who possesses specialized knowledge, skills, or experience in a particular field that is relevant to a legal case. Expert witnesses are called upon to provide their expertise and opinions to assist the court in understanding complex technical or scientific issues. In the context of … Read more

What is Audio Tampering Detection? Audio tampering detection refers to the process of identifying and detecting any unauthorized alterations or manipulations made to audio recordings. This can include activities such as editing, cutting, splicing, or adding sounds to audio files with the intent to deceive or mislead listeners. Audio tampering detection is crucial in various … Read more

What is Rumble Removal? Rumble removal is the process of eliminating low-frequency noise or vibrations from audio recordings. This unwanted noise, often referred to as rumble, can be caused by a variety of factors such as equipment vibrations, air conditioning units, or even the rumble of passing vehicles. Rumble removal is essential in audio restoration … Read more

What is Analog Audio Forensics? Analog audio forensics is the process of analyzing and enhancing audio recordings that are stored in analog formats, such as cassette tapes, vinyl records, or reel-to-reel tapes. This field of forensic science involves using specialized tools and techniques to clarify and authenticate audio evidence for use in legal proceedings. How … Read more

What is Residual Noise Analysis? Residual Noise Analysis is a technique used in audio processing to identify and remove unwanted noise that remains in a recording after initial noise reduction processes have been applied. This residual noise can include background hiss, hum, clicks, pops, and other artifacts that can degrade the quality of the audio … Read more

What is a Forensic Report? A forensic report is a detailed document that presents the findings of a forensic investigation. It is a crucial tool in the field of forensic science, as it provides a comprehensive analysis of evidence collected during an investigation. Forensic reports are used in various fields, including criminal investigations, civil litigation, … Read more

What are Compression Artifacts? Compression artifacts are visual or auditory distortions that occur when data is compressed using lossy compression algorithms. In audio, compression artifacts manifest as unwanted noise, distortion, or other imperfections in the sound quality. These artifacts are a result of the compression process discarding some of the original data to reduce file … Read more