參數(shù)資料
型號(hào): CXD2721Q-1
廠商: Sony Corporation
元件分類: 數(shù)字信號(hào)處理
英文描述: Single-Chip Digital Signal Processor for Karaoke
中文描述: 單芯片數(shù)字信號(hào)處理器的卡拉OK
文件頁數(shù): 51/70頁
文件大?。?/td> 941K
代理商: CXD2721Q-1
– 51 –
CXD2721Q-1
9. Filter Coefficient Tables
The cut-off frequencies and PEQ gain, Q, and center frequency settings for each signal flow filter are shown in
Tables 9-1 to 9-9.
Note that if the above setting values are changed during DSP operation, the output level becomes unstable for
several 1/fs.
Tables 9-1 to 9-5 and digital de-emphasis are given for fs = 44.1kHz. Consult your Sony representative with
regard to use at other than this value.
(1) DC Cut1 for Karaoke Mode or Music Mode Accompaniment/DC Cut2 for Karaoke Mode Voice
[Relevant coefficients] DC1a1 (address = 05H), DC1a0 (address = 06H), DC1b (address = 07H),
DC2a1 (address = 3DH), DC2a0 (address = 3EH), DC2b (address = 3FH)
Cut-off
frequency [Hz]
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
7FD1
7FBA
7FA2
7F8B
7F74
7F5D
7F46
7F2F
7F18
7F01
7EEA
7ED3
7EBC
7EA5
7E8E
7E77
7E61
7E4A
7E33
7E1C
7E06
7DEF
7DD9
7DC2
7DAC
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
OFF
7D95
7D7F
7D68
7D52
7D3B
7D25
7D0F
7CF8
7CE2
7CCC
7CB6
7CA0
7C8A
7C73
7C5D
7C47
7C31
7C1B
7C05
7BEF
7BDA
7BC4
7BAE
7B98
0000
DC1a1
DC2a1
802F
8046
805E
8075
808C
80A3
80BA
80D1
80E8
80FF
8116
812D
8144
815B
8172
8189
819F
81B6
81CD
81E4
81FA
8211
8227
823E
8254
DC1a0
DC2a0
7FA2
7F74
7F45
7F17
7EE9
7EBA
7E8C
7E5E
7E30
7E02
7DD4
7DA6
7D78
7D4B
7D1D
7CEF
7CC2
7C94
7C67
7C39
7C0C
7BDF
7BB2
7B85
7B58
DC1b
DC2b
Cut-off
frequency [Hz]
DC1a1
DC2a1
826B
8281
8298
82AE
82C5
82DB
82F1
8308
831E
8334
834A
8360
8376
838D
83A3
83B9
83CF
83E5
83FB
8411
8426
843C
8452
8468
8000
DC1a0
DC2a0
7B2B
7AFE
7AD1
7AA4
7A77
7A4B
7A1E
79F1
79C5
7998
796C
7940
7914
78E7
78BB
788F
7863
7837
780B
77DF
77B4
7788
775C
7731
0000
DC1b
DC2b
Table 9-1.
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