KS C IEC 61606-1-2008 Audio and audiovisual equipment－Digital audio parts－Basic measurement methods of audio characteristics－Part 1：General《音频和视听设备 数字音频部件 音频特性基本测量法 第1部分 概述》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 61606 1 1： KS C IEC 61606 1:2008 2008 11 20 http:/www.kats.go.krKS C IEC 61606 1:2008 : ( ) ( ) FITI ( ) : (http:/www.standard.go.kr) ： ：2008 11 20 2008-0777 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 616061:2008 i .1 1 1 2 2 3 , 2

2、 4 .5 4.1 5 4.2 (power supply).5 4.3 .5 4.4 6 4.5 7 4.6 7 5 ( / ) 14 5.1 / .15 5.2 15 5.3 16 5.4 17 6 ( / )18 6.1 / .18 6.2 19 6.3 19 6.4 21 KS C IEC 61606 1:2008 1： Audio and audiovisual equipment Digital audio parts Basic measurement methods of audio characteristics Part 1： General 2003 1 IEC 6160

3、6 1, Audio and audiovisual equipment Digital audio parts Basic measurement methods of audio characteristics Part 1： General , . 1 . . CD , DAT , , , . . . / , / . . 1 A/D D/A . KS C IEC 60268 3 . 2 32 kHz . 3 AES 17 . 4 IEC 61606(1997) , AES 17 EIAJ CP-2i50 . KS C IEC 61606 1:2008 2 2 . . ( ) . KS A

4、 ISO 266, KS C IEC 60268 2, 2： KS C IEC 60268 3, 3： KS C IEC 60958 1, 1： KS C IEC 60958 2, 2： KS C IEC 60958 3, 3： KS C IEC 61883 6, / 6： IEC 60107 5： 1999, Recommended methods of measurements on receivers for television broadcast transmissions Part 5： Electrical measurements on multichannel sound t

5、elevision receivers using the NICAM two-channel digital sound-system IEC 60038： 2002, IEC standard voltages IEC 60958 4： 2003, Digital audio interface Part 4： Professional applications(TA4) IEC 61079 4： 1993, Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz ban

6、d Part 4： Electrical measurements on sound/data decoder units for the digital sub-carrier NTSC system IEC 61079 5： 1993, Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band Part 5： Electrical measurements on decoder units for MAC/packet systems IEC 61938： 199

7、6, Audio, video and audiovisual systems Interconnections and matching valuesPreferred matching values of analogue signals ITU R BS 468 4, Measurement of audio-frequency noise voltage level in sound broadcasting AES 17, AES standard method for digital audio engineering - Measurement of digital audio

8、equipment 3 , 3.1 (Terms and definitions) . 3.1.1 (digital audio signal) LPCM(Linear Pulse Code Modulation) . 3.1.2 (coding format) IEC 60958, KS C IEC 61883 6 AV , EUT (bit stream) (coding word) 2 . 3.1.3 (digital interface for measurement) KS C IEC 61606 1:2008 3 IEC 60958, KS C IEC 61883 6 AV , K

9、S C IEC 61606 2( ) IEC 61606 3( ) . 3.1.4 (word length) . 3.1.5 (sampling frequency) fS 3.1.6 (full-scale level) FS , 16 7FFFH 8001H . 3.1.7 (signal level) dBFS . (dBFS) = 20 log10(A/B) A , B . 3.1.8 (analogue full-scale amplitude) EUT 3.1.9 (digital zero) 3.1.10 (normal measuring level) 20 dBFS 3.1

10、.11 (normal source impedance) EUT . KS C IEC 61606 2( ) IEC KS C IEC 61606 1:2008 4 61606 3( ) . , IEC 61938 KS C IEC 61606 2 . 3.1.12 (normal load impedance) EUT . KS C IEC 61606 2( ) IEC 61606 3( ) . , IEC 61938 KS C IEC 61606 2 . 3.1.13 (folding frequency) . 3.1.14 (in-band frequency range) 4 Hz

11、(3.1.15 ) 3.1.15 (upper band-edge frequency) fS0.46 fS 44.1 kHz , 20 kHz fS0.46 . , . 3.1.16 (out-of-band frequencies) 500 kHz . 3.1.17 (aliasing components) 3.1.18 (digital signal generator) RF 3.1.19 (Equipment Under Test) EUT 3.1.20 (jitter) KS C IEC 61606 1:2008 5 3.2 (synchronization input), .

12、, EUT , . , . AES 17 . 3.3 KS C IEC 60268 2 . , . 4 4.1 (9610) kPa 1535 (6015) % 4.2 (power supply) 4.2.1 IEC 60038 . 1 % . , 10 % 10 % . 4.2.2 ( ) . 2 % . . 4.2.3 (ripple) . 4.3 KS C IEC 61606 1:2008 6 1 . , , . , 997 Hz , 1 kHz . 1 (Hz) (Hz) fS= 32 kHz fS= 44.1 kHz fS= 48 kHz fS= 88.2 kHz fS= 96 k

13、Hz fS= 176.4 kHz fS= 192 kHz4 4 4 4 4 4 4 4 8 7 7 7 7 7 7 7 16 17 17 17 17 17 17 17 32 31 31 31 31 31 31 31 63 61 61 61 61 61 61 61 125 127 127 127 127 127 127 127 250 251 251 251 251 251 251 251 500 499 499 499 499 499 499 499 1 K 997 997 997 997 997 997 997 2 K 1 999 1 999 1 999 1 999 1 999 1 999

14、1 999 4 K 3 997 3 997 3 997 3 997 3 997 3 997 3 997 8 K 7 993 7 993 7 993 7 993 7 993 7 993 7 993 10 K 10 007 10 007 10 007 10 007 10 007 10 007 10 007 12 K 12 503 14 K 13 999 14.5 K 14 501 16 K 16 001 16 001 16 001 16 001 16 001 16 001 18 K 17 997 17 997 20 K 19 997 19 997 19 997 19 997 19 997 19 9

15、97 22 K 22 001 30 K 30 011 30 011 35 K 34 981 34 981 40 K 40 009 40 009 40 009 40 009 44 K 43 997 50 K 49 999 49 999 70 K 70 001 70 001 80 K 79 999 79 999 88 K 88 001 (sweep signal) , 16 Hz 1/2fS . 4.4 4.4.1 EUT 4.4.1.1 EUT . KS C IEC 61606 1:2008 7 4.4.1.2 EUT EUT . 4.4.1.3 RF IEC 60107 5, IEC 6107

16、9 4 IEC 61079 5 4.4.2 EUT 4.4.2.1 . 4.4.2.2 . 4.4.3 a) EUT . b) , 997 Hz EUT . . , 997 Hz EUT . c) EUT , . d) ： / , . , . e) ： , EUT . . , . . 4.5 . . , 5 . , . , . 4.6 KS C IEC 61606 1:2008 8 4.6.1 4.6.1.1 4.6.1.1.1 2 % 3 dB EUT . 4.6.1.1.2 . . 1/fS . 1/2 LSB 4.6.1.2 60 Hz( 70 Hz) 7 kHz 4： 1 , . CC

17、IF (11 kHz 12 kHz) . 4.6.1.3 4.6.1.3.1 1 . 1 ： , 4 Hz . , 2 . 4.6.1.3.2 KS C IEC 61606 1:2008 9 , 2 . 2 , 4 Hz . 2 . , . 4.6.1.4 , , . 4.6.1.5 RF RF , . 4.6.2 4.6.2.1 ( ) . 4 Hz (ripple)： 0.3 dB 0.55 fS ： 60 dB 0.46 fS , fS1/10 4.6.2.2 ( ) KS C IEC 61606 1:2008 10 . ( 1/10fS) 500 kHz ： 0.3 dB ： 60 d

18、B 500 kHz 18 dB/ 4.6.2.3 ( ) 4.6.2.3.1 / a) b) . 4.6.2.3.2 . 4.6.2.3.3 ： 0.3 dB ： 2 60 dB 4.6.2.3.4 1 . KS A ISO 266 1/3 . 4.6.2.4 ITU R BS 468 4 . 4.6.3 4.6.3.1 dBFS . ： ： FS 1 LSB KS C IEC 61606 1:2008 11 1/2 LSB 1 % . 4.6.3.1.1 . 4.6.3.1.2 KS C IEC 61606 2( ) IEC 61606 3( ) . 4.6.3.2 . 30 dB 115

19、dB (0 dB = 1 V) 4 Hz 2 % . , - . 4.6.3.3 . 500 kHz 2 % . 0 dB 100 dB (0 dB = 1 V) , . 4.6.4 4.6.4.1 . (%) . 3 % . ： KS C IEC 61606 1:2008 12 4.6.4.2 . (%) . 4 Hz . . 4 Hz . 4.6.4.2.1 . 4.6.4.2.2 FS 2 1 LSB 4.6.4.2.3 3 % 1 LSB . 4.6.4.2.4 KS C IEC 61606 2( ) IEC 61606 3( ) . 4.6.5 1 % . 4.6.6 4.6.6.1 997 Hz oR R . . 997/1360/RR= oC C . . f/1360/CC= . RC = , fS . , 2 . KS C IEC 61606 1:2008 13 2 4 T (T = 1/fS) 1T (T = 1/fS) 8 192 1 024 5.4 Hz 100 Hz 100 Hz 44.1 kHz 48 kHz 4 Hz 40 Hz 11 Hz 200 Hz 200 Hz