由助聽器專家根據(jù)峰力公司相關(guān)資料翻譯，轉(zhuǎn)載時(shí)請(qǐng)注明出處。
Further detailed slides and illustrations showing competitive approaches compared to SoundRecover are available in the original Naída seminar package and the dedicated SoundRecover presenation<<
有關(guān)SoundRecover功能更深入的對(duì)比與闡釋，您可以在原峰力美人魚產(chǎn)品研討會(huì)資料，及峰力編寫的“高頻重塑造”白皮書上看到。
We introduced SoundRecover around the world and fitters started asking why just for Naída? Why not offer SoundRecover for all types of HL?
我們?cè)?jīng)在全球舉行了峰力高頻重塑技術(shù)的推廣介紹會(huì)。驗(yàn)配師們開始置疑，是否只有美人魚的適應(yīng)用戶才可以采用這種高頻重塑技術(shù)？為什么這個(gè)技術(shù)不能應(yīng)用于所有的聽力損失患者？
We could have introduced SoundRecover for mild and moderate losses at the same time but we didn’t want to add a feature just for the sake of it.
本來，我們完全可以在推廣會(huì)中說，美人魚的高頻重塑功能同時(shí)也適用于輕-中度聽力損失患者，但我們不想不經(jīng)科學(xué)論證，為了加上一個(gè)功能而加上一個(gè)功能。
SoundRecover was developed for severe to profound HL. With the great success and your request we started research for SoundRecover and mild-moderate HL.
高頻重塑研究的初衷是為了滿足重度-極重度聽力損失患者的需要。在我們?nèi)〉昧司薮蟪晒Φ耐瑫r(shí)，以及應(yīng)大家的要求， 我們就高頻重塑功能是否能應(yīng)用于輕度到中度聽力損失人群也開始了研究。
This is an amazing example that shows beautifully the process of acclimatization in adults. Before SoundRecover, this 52 year old man is hearing and producing an /r/ instead of a /z/. After 2 months it is clear that he is starting to hear more high frequencies but is producing a /sh/ and not a /z/. After 3 months, pronunciation of /z/ is clear and appropriate.
Recordings were made courtesy of Andrea Bohnert at the University Hospital for ENT and Communication Disorders, Mainz, Germany.
下面是一個(gè)關(guān)于成人通過適應(yīng)來使用高頻重塑功能并獲得了成功的案例。在使用高頻重塑前，一位52歲的老人把/z/音聽成并發(fā)成/r/音。在2個(gè)月的適應(yīng)期后，他明顯可以聽到更多高頻區(qū)域的聲音，但當(dāng)聽到/z/時(shí)，這位老人發(fā)出的音仍然是/sh/，而不是/z/，但已經(jīng)非常接近了。在3個(gè)月的適應(yīng)期后，他可以正確地聽到并發(fā)出了/z/音。
This is just one story about the benefit of SoundRecover for moderate to severe and profound HL.
這只是高頻重塑功能使中度到重度/極重度聽力損失患者受益的案例中的一個(gè)。
SoundRecover, a Phonakproprietary algorithm, is designed to compress and shift high frequencies into an adjacent area of audible hearing.
高頻重塑功能是瑞士峰力聽力集團(tuán)獨(dú)有的一種助聽器信號(hào)處理方法。它的設(shè)計(jì)理念是將高頻區(qū)域患者原本聽不到的聲音壓縮并轉(zhuǎn)移到相鄰的頻率。
This unique approach enables high-frequency information to be compressed with minimal artifacts.
這種獨(dú)特的聲音信號(hào)處理方式使得高頻區(qū)域的聲音信息在被壓縮的時(shí)候盡可能地保持自然音質(zhì)。
This shows how the cut-off frequency varies depending on the degree of hearing loss. Now we can offer SoundRecoverto a whole range of audio configurations and are no longer restricted to the severe and profound high frequency losses.
截止頻率的設(shè)置隨著患者聽力損失的情況不同而不同。因此，現(xiàn)在不光重度到極重度聽力損失患者可以使用峰力的高頻重塑功能， 所有的聽力損失人群都可以從中受益。
Severe – profound: high cut of frequency, high compression rate
Mild – moderate: low cut of frequency and low compression rate
重度-極重度聽力損失人群：采用較高的截止頻率和高壓縮比
輕-中度聽力損失人群：采用較低的截止頻率和低壓縮比
Those frequencies below the cutoff remain unchanged. Depending on the cuttoff frequncy, variable levels of compression are applied to the high High frequencies which are compressed and lowered. Hence the term "non-linear frequency compression“.
截止頻率之前的聲音的放大并沒有發(fā)生任何變化，但截止頻率之后的高頻區(qū)域依據(jù)不同的壓縮比而被壓縮、轉(zhuǎn)移到了較低頻率區(qū)域。因此，峰力的高頻重塑功能被人們稱為一種“非線性的頻率壓縮技術(shù)”。
Now! we Know that all audiometric configurations can profit from SoundRecover. Audéo YES was the first product offering the benefits of SoundRecover for clients with hearing loss outside the power segment. Since then, Exélia Art, Nios micro and now Audéo MINI and SMARTalso all employ this Phonak exclusive. A SoundRecover solution is available for all audiometric configurations, ages and needs.
現(xiàn)在，我們知道了所有聽力損失人群者可以從高頻重塑功能里受益。奧笛YES是第一款超越了功能限制的使用高頻重塑功能的產(chǎn)品。打那以后，神話王、小天使、以及即將上市的奧笛迷你系列和奧笛Smart系列也擁有了峰力獨(dú)一無二的高頻重塑技術(shù)。現(xiàn)在，高頻重塑功能可以滿足不同聽力損失程度、類型、年齡的用戶的需求。
Let’s briefly review the frequency transposition schemes that have been tried.
讓我們來共同回顧一下以前市場(chǎng)上采用過的移頻技術(shù)。
A system which transposed or lowered the entire frequency range was ultimately discontinued and is no longer used commercially.
從前的移頻技術(shù)降低、轉(zhuǎn)移所有的聲音頻率，這種移頻方式現(xiàn)在已經(jīng)被廢止了，幾乎沒有再在商業(yè)上采用。
However another transposition system is available in competitive products.
但是，我們的競(jìng)爭(zhēng)產(chǎn)品上使用了另外一種移頻理念。
The Widex Audibility Extender shifts a **ed frequency section down and mixes it with other sounds. This shift and mix approach can be beneficial, but it also results in spectral blurring and unwanted distortion. >>This feature is also only available as an option in a secondary manual program.
唯聽的可聽度擴(kuò)展移頻技術(shù)是將特定頻率段的聲音轉(zhuǎn)移到較低頻率段，并將它們混合在一起。這種轉(zhuǎn)移和混合的移頻方式可能會(huì)有用，但是同時(shí)它也導(dǎo)致了聲音頻譜的模糊，并制造出患者不想要的失真。并且，此項(xiàng)功能（移頻）只能設(shè)置在第二個(gè)手動(dòng)程序里。
SoundRecover does neither of these things. It sets a cutoff frequency within the audible range, then compresses and shifts high frequencies without any spectral overlap. So the full range of sounds is audible and sounds below the cutoff are unaffected.
峰力的高頻重塑功能則不會(huì)產(chǎn)生以上后患。它在患者的可聽范圍內(nèi)設(shè)置了一個(gè)截止頻率，并將更高頻的聲音壓縮、并轉(zhuǎn)移，并且不發(fā)生頻率重疊現(xiàn)象。 這樣 患者就可以聽到全頻率范圍的聲音，并且截止頻率以前的聲音（較低頻音）沒有受到影響。
What does SoundRecover do?
高頻重塑功能的作用是什么？
Even SoundRecover was introduced last year we get ask a lot: What does SoundRecover do? Therefore we created a simple picture to visualize what SR is doing.
盡管高頻重塑功能是在去年被推出的，但我們現(xiàn)在仍然收到很多問題，如，高頻重塑到底是干什么的？為此，我們做了一個(gè)簡(jiǎn)單的示意圖，以便為大家形象說明高頻重塑功能：
左圖為峰力的高頻重塑造功能，右圖為竟?fàn)幃a(chǎn)品。
1.You can see 4 People sitting on a sofa.
你可以看到圖中的沙發(fā)上坐了4個(gè)人。
2. Then one person more is joining and wants to sit down as well.
然后，第五個(gè)人加入，也想坐在這個(gè)沙發(fā)上。
3. Please be aware that we are talking about nonlinear frequency compression. That means below the Cut off frequency nothing happens, just everything above becomes compressed. And that’s what you can see here. Just 2 people are squeezed together to make space for the fifth person.
峰力的高頻重塑功能使有的是非線性頻率壓縮。這意味著截止頻率以下（截止頻率前）的聲音不會(huì)收到任何影響，僅截止頻率以上的聲音（高頻區(qū)域）被壓縮。這也是我們?cè)趫D中所看到的，圖中另邊的兩人擠了擠，讓第五個(gè)人坐下，而第一、二個(gè)人幾乎沒受到任何影響。
4. What would happen in case of transposition? The fifth person would sit on the other two persons.
但如果使用傳統(tǒng)的移頻技術(shù)會(huì)發(fā)生什么樣的情況呢？那就是，第5個(gè)人就得坐在右邊兩個(gè)人的大腿上。
The /S/ sound is located in the high frequencies. The vowel /A/ is low frequency and can be seen clearly. In the second spectrogram, /ASA/, as perceived by someone with a high frequency hearing loss, shows the residual energy of the /S/ sound which is now inaudible. The low frequency vowels are not affected by a high frequency hearing loss and are still audible. When the /ASA/ is amplified with SoundRecover, non-linear frequency compression, the high frequency components are compressed to an audible range and the global relations between different frequency components are preserved.
/s/音的絕大多數(shù)能量位于高頻區(qū)域。元音/A/在低頻區(qū)，現(xiàn)在，使用高頻重塑（非線性頻率壓縮）功能以后，患者可以聽到/s/的聲音，而低頻區(qū)域的元音也沒有受到影響，仍然可以聽到的。 高頻區(qū)域原先聽不到的聲音，如/S/音，被壓縮并轉(zhuǎn)移到了可以聽到的區(qū)域，而且各個(gè)頻率之間的相對(duì)關(guān)系仍然保持不變。
Regardless of the amount of compression applied, the non-linear frequency compressed output signals do not overlap the low frequency range and the global relations between different components remain intact.
無論壓縮比如何改變，經(jīng)非線性頻率壓縮過的信號(hào)輸出都不會(huì)和低頻區(qū)域的輸出重合，且各個(gè)不同頻率之間的相對(duì)關(guān)系依然保持完整。
The graph below shows the gain of a hearing instrument when non-linear frequency compression applied at different settings. The green line shows the original signal. Moving towards the left are different compression settings with the strongest setting (dark blue line) being 1500 Hz cut-off frequency with a compression ration of 4:1.
下面的這張圖反應(yīng)的是當(dāng)非線性頻率壓縮（高頻重塑）在不同設(shè)置時(shí)助聽器的增益情況。圖中綠色的線是代表原始聲信號(hào)的增益。從綠色的線依次向左看，高頻重塑的強(qiáng)度設(shè)置的越來越強(qiáng)，最左邊的那條深藍(lán)色的線是最強(qiáng)的設(shè)置狀態(tài)，即截止頻率1500赫茲處的壓縮比為4：1.
This is similar to what you will see in a test box with non-linear frequency compression turned on. Although it shows that there is no high frequency gain, this is incorrect as the high frequencies have been compressed to a lower frequency.
這與您在助聽器檢測(cè)箱中看到的檢測(cè)結(jié)果相似（當(dāng)高頻重塑功能開啟時(shí)）。雖然，這看似表示高頻區(qū)域沒有增益了，其實(shí)這種理解是不正確的，因?yàn)椋哳l區(qū)域的聲音信號(hào)已經(jīng)被壓縮并轉(zhuǎn)移到低頻區(qū)域。
Background information: 背景信息
All pictures derived from MACarena “vcv” speech tests以上所有的圖片均來源于MACarena “vcv” 的言語測(cè)試
On the spectrograms:在言語頻譜圖中（持續(xù)周期為1個(gè)Vcv測(cè)試周期）
x = time (duration of 1 vcv item)橫軸=時(shí)程軸
y = frequency from 0 to 6000 Hz縱軸是頻率軸（0-6000赫茲）
MACarena Speech Tests is a software program designed to present speech stimuli and record subject responses. It was developed by Dr. Waikong Lai from the University of Zurich. Copyright, USZ_ORLLEA (May 2003).
MACarena言語測(cè)試是一種軟件，它用于測(cè)出言語刺激聲和記錄受試者的反應(yīng)。該軟件是被蘇黎世大學(xué)的Waikong Lai博士研制開發(fā)出來的，版權(quán)，USZ_ORLLEA (May 2003).
SoundRecover is about providing audibility for the full spectrum of sounds and enhancing speech intelligibility. It is an effective and proven way to restore high frequency speech and environmental sounds without undesirable artifacts or a perception of shrillness or tinniness.
高頻重塑的目的是為弱人士提供全頻率段聲音的可聽性，并搞高言語可懂度。事實(shí)證明，這是一個(gè)在不產(chǎn)生失真、刺耳、耳鳴的情況下重建高頻言語、讓聾人聽到環(huán)境中的各種聲音的有效途徑。
There is no spectral overlap or mixing as non compressed sounds below the cutoff frequency are not affected.
峰力的高頻重塑技術(shù)沒有頻率重疊或混合的現(xiàn)象，因此截止頻率以下的聲音的音質(zhì)并沒有受到影響。
The resulting expansion of audibility provides benefits for speech intelligibility and environmental sound awareness, even in challenging listening situations.
峰力的高頻重塑技術(shù)為聽力損失人群拓展了可聽度，提高了言語可懂度，讓他們即使在比較困難的聆聽環(huán)境中也能聽到更多的環(huán)境聲。
It is important to remember that while many clients will spontaneously accept SoundRecover, some acclimatization is often required and should be expected. Typically, 4-6 weeks is sufficient for most clients to acclimatize. Of course no solution is right for every single client. For those who do not benefit from or would not prefer SoundRecover, it can easily be deactivated in iPFG with just one mouse click. However field studies indicate no negative consequences of SR, so even if benefit is not perceived, SR can remain active.
然而，我們需要記住非常重要的一點(diǎn)，那就是，雖然很多患者可以自發(fā)地接受高頻重塑，但通常情況下高頻重塑需要一定的適應(yīng)時(shí)間，我們不應(yīng)對(duì)此感到意外。大多數(shù)情況下患者需要4-6周的適應(yīng)時(shí)間。當(dāng)然每個(gè)人都存在個(gè)體差異，沒有一個(gè)解決方案是適用于全體的。對(duì)那些使用高頻重塑沒有效果或是不喜歡高頻重塑的患者來說，要在峰力獨(dú)有的驗(yàn)配軟件iPFG中將此功能關(guān)閉也非常簡(jiǎn)單，只需要點(diǎn)擊一下即可。但是，在有關(guān)專業(yè)領(lǐng)域發(fā)表的研究報(bào)道中并沒有發(fā)現(xiàn)高頻重塑功能帶來負(fù)面影響的案例，所以，即使患者沒有感受到高頻重塑功能所帶來的好處，患者仍然可以開啟并使用這個(gè)功能。
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