課程設(shè)計(jì)-基于matlab的語音信號(hào)分析與處理的課程設(shè)計(jì)實(shí)驗(yàn)報(bào)告-wenkub.com
2025-01-18 17:16 本頁面
【正文】 ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jumpWhen he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely.If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。 Have declared the end of the encounter that haven39。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說，是自以為是的精神寄托罷了。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個(gè)人的時(shí)候，自己的想法總是特別地清晰。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年齡已經(jīng)到了尾聲。s 21 win.Michel Platini, president of European football39。s about how he felt and I would like to speak to him first to find out what his experience was.Uefa hasEmployment tribunals.The (lack of) air up there Watch mCayman Islandsbased Webb, the head of Fifa39。a damagesbased agreement, you should make sure you39。Further help.If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as at you don39。但最重要的還是感覺到通過課程設(shè)計(jì)能夠?qū)W以致用，并且運(yùn)用以前學(xué)過的工具來更好的理解所學(xué)的內(nèi)容，收獲還是挺大的。因?yàn)闉V波器處理的音頻信號(hào)是我自己的聲音，所以通過濾波器處理后音頻信號(hào)的變化，能大致得出自己聲音的頻率范圍，也是挺有意思的。在圖3—圖10的波形圖和頻譜圖中可以看出，經(jīng)過濾波器處理后，不僅濾除掉了原信號(hào)的部分頻率分量，原信號(hào)的幅度也會(huì)有所衰減，而低通和帶阻濾波器產(chǎn)生的信號(hào)相對(duì)于原信號(hào)變化不大，是因?yàn)樵O(shè)定的選頻范圍是原信號(hào)的頻率段中較集中的部分，所以與此同時(shí)，高通和帶通濾波器產(chǎn)生的信號(hào)相對(duì)于原信號(hào)的幅度就會(huì)大大衰減，其原因也是在于高通和帶通濾波器的選頻范圍是原信號(hào)頻率范圍中較少的一部分。因?yàn)樵诨卣{(diào)函數(shù)中，高通和低通、帶通和帶阻濾波器的截止頻率、波紋系數(shù)、抽樣頻率設(shè)定的值是相同的，所以在下圖中縱向?qū)Ρ瓤梢钥闯?，信?hào)通過高通和低通濾波器之后頻譜相對(duì)于原信號(hào)是互補(bǔ)的，如果對(duì)于高通濾波器在某一頻率段上有幅值，那么對(duì)于低通濾波器該頻率幅值為零。plot(abs(Y))。Y=fft(y)。
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