Back to results
US 10,374,564 B2Granted
Loudness control with noise detection and loudness drop detection
AssigneeDTS, Inc.
InventorsBrandon Smith, Aaron Warner, Jeff Thompson
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeDTS, Inc.
InventorsBrandon Smith, Aaron Warner, Jeff Thompson
Estimating the term…
Loudness control systems or methods may normalize audio signals to a predetermined loudness level. If the audio signal includes moderate background noise, then the background noise may also be normalized to the target loudness level. Noise signals may be detected using content-versus-noise classification, and a loudness control system or method may be adjusted based on the detection of noise. Noise signals may be detected by signal analysis in the frequency domain or in the time domain. Loudness control systems may also produce undesirable audio effects when content shifts from a high overall loudness level to a lower overall loudness level. Such loudness drops may be detected, and the loudness control system may be adjusted to minimize the undesirable effects during the transition between loudness levels.
A system configured to detect noise in an input signal, the system comprising:
A loudness control system configured to detect noise in an input signal, the system comprising:
Dependencies are inferred from the claim text.