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Replay-based deepfakes are malicious works that aim to reproduce a recording of the interlocutor's voice. [29] There are two types: far-field detection and cut-and-paste detection. In far-field detection, a microphone recording of the victim is played as a test segment on a hands-free phone. [30]
Typically, the replay gain and peak level values are then stored as metadata in the audio file. ReplayGain-capable audio players use the replay gain metadata to automatically attenuate or amplify the signal on a per-track or per-album basis such that tracks or albums play at a similar loudness level.
A microphone is a transducer and as such is the source of much of the coloration of an audio mix. Most audio engineers would assert that a microphone preamplifier also affects the sound quality of an audio mix [citation needed]. A preamplifier might load the microphone with low impedance, forcing the microphone to work harder and so change its ...
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Sound card Mozart 16 for ISA-16 bus A Turtle Beach sound card for PCI bus Echo Digital Audio's Indigo IO – PCMCIA card-bit 96 kHz stereo in/out sound card A VIA Technologies Envy sound card for PC, 5.1 channel for PCI slot. Sound cards for IBM PC–compatible computers were very uncommon until 1988.
A pistonphone is an acoustical calibrator (sound source) that uses a closed coupling volume to generate a precise sound pressure for the calibration of measurement microphones. The principle relies on a piston mechanically driven to move at a specified cyclic rate, pushing on a fixed volume of air to which the microphone under test is coupled.
The proximity effect in audio is an increase in bass or low frequency response when a sound source is close to a directional or cardioid microphone. [1] [2] Proximity effect is a change in the frequency response of a directional pattern microphone that results in an emphasis on lower frequencies. It is caused by the use of ports to create ...
The sound film had four double-width optical soundtracks, three for left, center, and right audio—and a fourth as a control track with three recorded tones that controlled the playback volume of the three audio channels. Because of the complex equipment this system required, Disney exhibited the movie as a roadshow, and only in the United States.