The invention relates to the technical field of time length detection, and discloses a news simulcasting time length detection alarm method based on voice recognition, which comprises the following steps: S1,
noise reduction: integrating an advanced
digital signal processing technology and a professional
noise reduction
algorithm to form a refined
processing system adaptive to'news simulcasting 'audio, according to the
system, aiming at collected useless components such as environment
noise and equipment noise, noise characteristics are captured through a multi-dimensional
signal analysis model, an effective information core identifier is defined, a differentiated characteristic
database of signals and noise is constructed, and a
technician sets scientific
noise reduction parameters according to the differentiated characteristic
database. And accurate noise identification and stripping: integrating an advanced
digital signal processing technology and a professional
noise reduction algorithm, capturing noise characteristics through a multi-dimensional
signal analysis model, accurately stripping
environmental noise (such as
studio echo and external interference sound) and equipment noise (such as sound recording equipment floor noise and transmission link
electromagnetic interference), and simultaneously retaining the original texture of effective audio.