#audi

• ACCA — Global acronym for the 'Association of Chartered Certified Accountants', the international body for professional certified accountants headquartered in the UK. The term designates both the international organization and the elite professional qualification obtained after passing a complex series of specialized exams (audit, financial management, taxation).
• Female admirer — A female person who harbors a feeling of deep esteem, respect, appreciation, or enthusiasm for someone or something; a devoted supporter of an artist, a public figure, an idea, or a work of art. This term defines an active social behavior of recognizing value and talent within a cultural or interpersonal framework.
• To devoice — To deprive of sound, echo, or sonorous properties; to transform a voiced sound into a voiceless one by stopping the vibration of the vocal cords. In modern acoustic engineering, the term is used very rarely to describe the complete attenuation of sound emissions.
• Devoicing — The act of devoicing or deadening sound; the process of transforming a voiced sound into a voiceless one by stopping vocal cord vibration during articulation. In audio engineering, it describes the extreme attenuation of sound waves or the mitigation of resonance within an acoustic chamber.
• Agrippina — A feminine proper name of Latin origin (Agrippina), derived from the masculine name Agrippa. It is highly famous in ancient history through two imperial-rank female figures of the Julio-Claudian dynasty: Agrippina the Elder (mother of Emperor Caligula) and Agrippina the Younger (sister of Caligula, wife of Claudius, and mother of Emperor Nero), both representing archetypes of dynastic political ambition.
• Agrippina — The Latin and international orthographic form frequently used in academic works for the historical name Agripina. It refers to the two outstanding female figures of the Julio-Claudian dynasty in the Roman Empire: Agrippina the Elder and Agrippina the Younger, renowned for their exceptional political influence and tragic fates within the imperial court.
• Ahlborn — A reference name in the electronic musical industry, associated with a famous manufacturing brand of classical digital organs and advanced sound simulation systems for churches. Devices of this type utilize complex structural sound-sampling technologies to replicate with microscopic fidelity the acoustics and timbre of traditional pipe organs.
• Alnico — A ferromagnetic alloy with superior magnetic properties, made from a structural composition of iron mixed with aluminum (Al), nickel (Ni), and cobalt (Co), to which small percentages of copper or titanium may be added. This structural material is widely used in manufacturing high-power permanent magnets for audio loudspeakers, electric motors, industrial sensors, and microphones.
• Speaker — A person who speaks, addresses a speech or an allocution to an audience; the sender of an oral message in a direct communication act. In correlation with the term 'allocutary' (the addressee), the speaker represents the active speaking subject who initiates the verbal interaction, selects stylistic registers, and shapes the utterance according to their pragmatic intent.
• Amphitheater — An ancient public building of circular or elliptical shape, with concentric tiers of seats for spectators surrounding a central arena; by modern extension, a large lecture hall, auditorium, or performance space with rows of seats arranged in a semicircle and gradually elevated in tiers to ensure optimal visibility and acoustics.
• Ampex recorder — A technical and commercial term integrated into television and broadcasting jargon to designate a professional studio tape recorder or a videotape recorder (VTR), a name derived from the famous American Ampex corporation (founded by Alexander M. Poniatoff). In a broader sense, it was used in the past to denote the process of magnetic recording of audio-video signals or the magnetic tape itself.
• Amplifier — An apparatus, electronic device, or technical assembly that increases the power, voltage, or intensity of an electrical, acoustic, or light signal received at the input, utilizing energy from an external source; as an adjective, it describes any element or factor that boosts or intensifies an effect, a state, or a physical or social phenomenon.
• Amplifier — A neologistic term adopted from international technical terminology (English / French) used to designate an electronic amplifier, a power station, or an electroacoustic device intended for increasing the amplitude of sound or electrical signals. In current musical jargon and the high-fidelity (Hi-Fi) audio equipment industry, the word is frequently used as such to specify amplification modules dedicated to guitars or professional sound systems.
• Stereo receiver — A complex high-fidelity electronic apparatus that structurally combines a radio receiver (tuner) and an audio power amplifier within a single chassis. This device allows selecting, receiving, and decoding radio stations broadcast over ultra-short or medium waves, while simultaneously ensuring signal amplification and its efficient distribution to a modular speaker system.
• Amusia — A congenital or acquired neurological disorder (following a brain injury) characterized by the partial or total inability to recognize, hum, reproduce, or understand musical tones, rhythm, and melodies, despite biological hearing and general intellectual functions remaining perfectly intact; tone deafness. This structural phenomenon affects the cognitive processing of sound structures in the secondary auditory cortex.
• Amusia variant — An extremely rare medical and neurological term, sometimes used as a variant or graphical error for 'amusia' or as a niche synonym for the congenital or acquired inability to correctly perceive and process rhythmic structures and tone elements of speech or music. It represents an anomaly in the central auditory analyzer affecting the decoding of complex acoustic signals.
• Anacusis — Total, complete, and permanent loss of hearing in one or both ears, structurally caused by profound damage to the cochlea, the auditory nerve, or the cortical nerve centers in the temporal lobe. This clinical phenomenon differs from hypoacusis by the absolute absence of any functional residual hearing, depriving the patient of sound wave perception and requiring complex neuro-sensory rehabilitation strategies or cochlear implantation.
• Investigation — The act of systematically investigating a problem, an offense, or a situation of public interest, and its result; a set of investigations, hearings, and evidence gathering carried out by a judicial authority, an administrative commission, or by journalists to establish factual truth and identify responsible parties.
• Questioning — The act of investigating a person or a situation; the dynamic and procedural process through which suspects, witnesses, or individuals involved in a case are subjected to interrogations and legal verifications to establish their involvement in an unlawful act.
• Under investigation — Subject to a criminal, administrative, or journalistic investigation; a physical or legal person undergoing official investigations or hearings by law enforcement agencies or an investigative committee to establish the degree of guilt or involvement in an unlawful act.