閫氫俊鍘熺悊璇曢闆嗗強绛旀
绗竴閮ㄥ垎
閫夋嫨棰?/p>
涓�銆佸崟椤归�夋嫨棰?/p>
(
鏈ぇ棰樺叡
15
灏忛锛屾瘡灏忛
1
鍒嗭紝鍏?/p>
15
鍒?/p>
)
鍦ㄦ瘡
灏忛鍒楀嚭鐨勫洓涓�夐」涓彧鏈変竴涓�夐」鏄鍚堥鐩姹傜殑锛?/p>
璇峰皢姝?/p>
纭�夐」鍓嶇殑瀛楁瘝濉湪棰樺悗鐨勬嫭鍙峰唴銆?/p>
1.
涓�涓簩杩涘埗鏁板瓧淇″彿鐮佸厓鏃堕棿闀垮害涓?/p>
0.1渭s锛屽湪浼犺緭杩囩▼涓?/p>
骞冲潎
2.5
绉掍骇鐢熶竴涓敊鐮侊紝鍒欏叾骞冲潎璇爜鐜囪繎浼间负
( )
A. 5脳10
-
6 B.2脳10
-
8 C.2脳10
-
7 D.4脳10
-8
2.
宸茬煡涓�涓?/p>
8
杩涘埗淇″彿鐨勭鍙烽�熺巼涓?/p>
4800
娉㈢壒锛屽垯鍏跺搴旂殑淇?/p>
鎭�熺巼鏄?/p>
( )
A.4800bit/s B.2400bit/s C.9600bit/s D.14400bit/s
3.
鏌愬潎鍖�閲忓寲鍣ㄧ殑閲忓寲绾ф暟涓?/p>
512
锛屽垯褰撹緭鍏ヤ俊鍙蜂负
-25dB
锛屽垯
鍏堕噺鍖栦俊鍣瘮
(S/D)(
鍧囧寑
)
涓?/p>
( )
A.
杩戜技
30dB B.
杩戜技
29dB C.
杩戜技
34dB D.
杩戜技
40dB
4.
鑻?/p>
PCM30/32
璺郴缁熺殑
=7
锛屽垯
1
甯т腑鍚湁鐨勬瘮鐗规暟涓?/p>
( )
A.256 B.512 C.128 D.224
5.PCM
涓�娆＄兢涓�涓甯х殑鏃堕棿鏄?/p>
( )
A.250渭s B.500渭s C.1000渭s D.2000渭s
6.PCM30/32
璺埗寮忓畾鏃惰剦鍐蹭腑鐨勮矾鑴夊啿鐨勯噸澶嶉鐜囦负
( )
A.2048KHz B.16KHz C.8KHz D.32KHz
7.
鏁板瓧澶嶆帴鐨勬柟娉曟湁鍚屾澶嶆帴鍜屽紓姝ュ鎺ヤ袱绉嶏紝鐩墠澶у鏁?/p>
PDH
閮介噰鐢ㄥ紓姝ュ鎺ワ紝杩欑澶嶆帴鏂规硶鍦ㄥ鎺ュ墠棣栧厛瑕佸仛鐨勫伐浣滄槸
( )