外文翻譯--語(yǔ)音電路的介紹-文庫(kù)吧資料
2025-05-22 05:52本頁(yè)面
【正文】 ntent reads in does not need to revise, may consider uses OTP (disposable fever to write) the pronunciation electric circuit and to cover the membrane pronunciation electric circuit Second, how chooses OTP perhaps the MASK pronunciation electric circuit: How these two center selects, then mainly reads the order form the quantity, the variety as well as the date of delivery. After the OTP pronunciation electric circuit must use specialpurpose programming fever writing to burn into the pronunciation content edition, needs the PC machine support. This kind of chip not subscribes the quantity limit, a piece also may manufacture, the delivery is quick. Periphery part few, partition simple, the price is lower, at present has 10 second /21 second /42 second /85 second /,170 second /,341 second and so on the many kinds of models to be possible to elect (to be allowed to divide multistage application). Suits must fast promote the product, the batch few, the variety are many, the pronunciation does not have to modify the product selects. On each kind of product and so on electrical appliances, motorcycle, coal gas alarm apparatus, rental car mileage fare meter has obtained the widespread application. If the order form quantity is very big (above 20,000 pieces), request price very low application, like each kind of electronic toy, electronic praying to Buddha machine and so on product, then should use covers the membrane (MASK) the pronunciation electric circuit. At present has 3 second 360 second many kinds of specifications to supply the choice, may divide into the multistage. When MASK chip ordering has to subscribe the quantity and Man Danliang, if throws the single quantity not to be able to achieve for the first time the factory stipulation pletely the single quantity, usually also must pay 15003000 Dollar light cover to spend (general factory all to pledge throws full stipulation quantity in a year to return light cover to spend). The production cycle is longer, usual need 3545 day. Throws after the list, is unable to change, the risk is bigger. Third, looks at pronunciation transcribing the length: May see from the above introduction, the ISD/APR monolithic pronunciation recording and sending out chip longest recording time is16 minutes (the 4KHZ sampling rate). In this recording time, uses the ISD/APR chip to have the better natural price ratio. Flows rapidlyBMP5008 multistage recording and sending out board which the pany newly promotes, uses the brandnew 32K sampling circuit design, the acoustic fidelity good, may make 48 minute multistage recording and sending out, also the price is low, needs the monolithic integrated circuit support not in addition, the suggestion use. If makes a longer time the sound recording (to surpass above 16 minutes), above chip superiority is not obvious,
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