本文關(guān)鍵詞： 耳鳴 習(xí)服治療 IFS算法 分形 分解和弦　出處：《四川大學(xué)學(xué)報(自然科學(xué)版)》2017年03期 　論文類型：期刊論文

【摘要】：耳鳴是在無外界聲源刺激下的一種主觀感知,在臨床上十分常見.習(xí)服治療是目前公認(rèn)的一種有效的耳鳴治療方法.研究表明,具有相似卻又不重復(fù)的分形音樂可以作為耳鳴習(xí)服治療的治療聲源.本文提出了一種基于IFS(Iterated Function System)分形算法和分解和弦的耳鳴康復(fù)音合成新方法,該方法將分形圖形處理技術(shù)運用到耳鳴康復(fù)音的合成中,使得生成的音符整體在可控范圍內(nèi)隨機(jī)出現(xiàn),并且相鄰音符在可調(diào)節(jié)的范圍內(nèi)波動,可有效的避免音調(diào)突變現(xiàn)象.此方法保留了圖像信號中的分形特征,實現(xiàn)了可控范圍內(nèi)的確定性與可預(yù)測性的統(tǒng)一;在加入了分解和弦后,音樂更加連貫.試聽結(jié)果表明,該耳鳴康復(fù)音具有相似不重復(fù)、流暢且突變少的特點,對耳鳴治療有一定的參考價值.
[Abstract]:Tinnitus is a kind of subjective perception without external sound source, which is very common in clinic. Acclimatization therapy is an effective method of tinnitus treatment. Fractal music, which is similar but not repeated, can be used as a therapeutic sound source for tinnitus acclimation therapy. This paper presents a new method of tinnitus rehabilitation sound synthesis based on IFS(Iterated Function system fractal algorithm and decomposed chord. In this method, fractal graphics processing technology is applied to the synthesis of tinnitus rehabilitation sound, which makes the generated notes appear randomly in controllable range, and the adjacent notes fluctuate in adjustable range. This method preserves the fractal feature in the image signal and realizes the unity of certainty and predictability in controllable range. The music is more coherent with the addition of decomposed chords. The audition results show that, The convalescent tone of tinnitus has the characteristics of similar non-repetition, fluency and less mutation, so it has certain reference value for tinnitus treatment.
【作者單位】： 四川大學(xué)電子信息學(xué)院;
【基金】：四川省科技支撐項目(2011SZ0123);四川省科技支撐項目(2013GZ1043)
【分類號】：R764.45;TN912.33
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本文編號：1516211