spectral subtraction method 中文意思是什麼
spectral subtraction method
解釋
光譜差減法- spectral : adj. 1. 鬼的；鬼怪（似）的。2. 【物理學】光譜的。
- subtraction : n. 減去，扣除 （from）; 【數學】減法。
- method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
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Then this spectral subtraction method is applied to noise speech recognition system as the front - end processing. noise speech signal are processed to improve its snr before recognition. so the recognition rate can be improved in noise environments
並將改進譜減演算法作為噪聲下語音識別系統的前端處理過程，即通過對含噪的語音進行語音增強以提高信號的信噪比，從而提高語音識別系統的抗噪聲性能。 -
This dissertation is different from traditional speech enhancement methods which are based on noise characteristic such as adaptive noise cancellation or spectral subtraction processing. in this dissertation the speech signal conducted by bone was taken as the object to be studied and the exploitive study on the acoustical characteristic of speech signal conducted by bone was performed by the method of theory combined with experiment. then a proposition about speech reconstruction based on speech signal conducted by bone was presented, and the design of software and hardware was completed
本文與傳統的基於噪聲特性的自適應噪聲抵消法、頻譜減法等語音增強降噪技術不同，是以骨導語言為研究對象，採用理論與實驗相結合的方法對骨導信號的聲學特性進行了探索性研究，進而提出了基於骨導信號的語音重構技術，並完成了相應的軟硬體開發。 -
In this paper, a new spectral subtraction method is presented, which breaks the assumption that the noise is gaussian distribution with mean 0 in the original spectral subtraction method
本文針對譜減法中關于噪聲是零均值的高斯分佈的假設，提出了一種可以打破這一假設的改進譜減演算法。
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