grain noise meaning in English
晶粒噪声
颗粒噪声
颗粒造声
Examples
- They are also quite useful in the analysis of noise problems, e.g. that of film grain noise .
它们对分析噪声问题（例如底片颗粒噪声）也是很有用的。 - We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr . adm ) , such as slope overloading and grain noise . in this method , numerical sliding average filtering was used for filtering decoding speech signal . experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr . pcm ) signal , and considerably improves , the playback speech quality in naturalness , legibility and under standability
针对语音信号自适应增量调制( adm )方式中斜率过载和颗粒噪声缺点，提出了一种改进方法，它利用滑动平均方法对解码后的信号进行数字滤波.试验和分析表明，该方法使解码后的信号波形与原脉冲编码调制( pcm )波形具有很好的一致性，使再生语音质量在自然度、清晰度和可懂度方面比改进前均有较大提高