雙語暢銷書《艾倫圖靈傳》第6章:連接兩個世界(8)
Alan had already suggested that the principle of the Vocoder, taking samples at ten different frequency levels,
could be applied to an attack on the time-segment permuting type of speech scrambler—perhaps with the idea of recognising the neighbouring segments automatically.
這個原理，可以用來破解打亂時間片段型的語音加密系統，方法就是自動識別相鄰的時間片段。His idea for applying the Vocoder to the RCA multiplying speech cipher was something much more sophisticated, and he said it would require at least a week of computational work to see if it was feasible.
把聲碼器應用到語音相乘加密系統則更加巧妙複雜，艾倫說，他需要進行至少一個星期的計算，來檢驗該方案是否可行。
In his second week at Bell Labs he settled down to this work, which involved calculations with Hermite polynomials, and in his third week he had some assistance with the calculations.
在貝爾實驗室的第二週，他開始進行這項工作，這涉及到埃爾米特多項式的計算。在第三週，艾倫得到了一些計算方面的協助。But Alan was also involved in a quite separate 'cell', which was devoted to creating the world's first totally unbreakable speech encipherment system.
艾倫還參與了另一個隔間的工作，那裏致力於創造世界上第一個完全無法破譯的語音加密系統。This was the most advanced work in progress at Bell Labs, and its best guarded secret.
這是貝爾實驗室正在進行的最尖端的研究，也是最高級別的機密。The original goal had been that of finding a way to encipher speech on the Vernam principle, so that if a one-time key were employed, the result would be as unbreakable for speech as it was for telegraph signals.
他們最初的目標是找到一種方法，用維爾南原理對聲音進行加密，就像文本通信一樣，只要使用一次性的密鑰，那麼語音就無法被破譯。With this end in view, they had attacked the quite novel problem of representing speech by the discrete 0's and 1's used in a Vernam cipher system.
爲此，他們要解決如何用"0"和"1"的形式來表示語音，這是一個相當新奇的問題。
