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DIGITAL AUDIO SIGNAL GENERATOR
Digital Audio Signal Generator
DG-2630
OUTLINE
DG-2630 generates the test signal by the IEC61937 (with MPEG-2 AAC) and IEC60958 (with PCM) digital audio interface format and measures the characteristic of the equipment which processes the digital signal. The sampling frequency of PCM test pattern is up to 96kHz. Two kinds of output The signals are output by coaxial terminal and optical terminal. External control The key operation of a front panel can be controlled through remote control terminal of the rear panel. Seven segment LED display The output signal frequency and the level or pattern No. is displayed by seven segments LED. Easy test pattern change The test pattern is output in order pre-set by the UP/DOWN/TOP key.
FEATURES
MPEG-2 AAC and PCM Pre-set test patterns of MPEG-2 AAC and PCM are generated by digital. Test patterns of MPEG-2 AAC is fixed. PCM can be rewritten by using RS-232C. BS digital broadcasting standard The MPEG-2 AAC signal comply with the BS digital broadcasting standard in Japan. Manual operation Emphasis bit and copy bit of C-bit, validity flag and L/R-MUTE in digital audio inter face formatting can be manually changed regardless of the test pattern. However, L/R-MUTE is changeable at PCM MODE only.
RS-232C
OPTION
206
DIGITAL AUDIO SIGNAL GENERATOR
DG-2630
SPECIFICATIONS
Memory backup The status of memory data is backed up. MPEG-2 AAC test pattern Sampling frequency 48 kHz, 44.1 kHz, 32 kHz Number of quantization bit 24 bit, 16 bit fixed Profile LC profile Bit-stream form ADTS Sound mode Monaural, Stereo, Multi-channel, Dual-monaural Sound emphasis Non Bit rate 96 kbps, 128 bps, 144 kbps, 192 kbps Test pattern frequency 18.75Hz, 46.875Hz, 93.75Hz, 187.5Hz, 281.25Hz, 375Hz, 562.5Hz, 937.5Hz, 1.125kHz, 1.875kHz, 2.25kHz, 3kHz, 4.5kHz, 5.25kHz, 9kHz, 10.125kHz, 15kHz, 20.25kHz fixed (at sampling frequency 48kHz) 12.5Hz, 31.25Hz, 62.5Hz, 125Hz, 187.5Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 5kHz, 8kHz, 10kHz, 14kHz fixed (at sampling frequency 32kHz) 43.0664Hz, 86.136Hz, 172.2656Hz, 258.398Hz, 516.797Hz, 689.0625Hz, 1.033594kHz, 1.378125kHz, 2.067186kHz, 2.75625kHz, 4.134375kHz, 5.5125kHz, 8.26875kHz, 19.29375kHz, fixed (at sampling frequency 44.1kHz) Test pattern waveform Sine wave Number of test pattern 86 kinds Sampling frequency accuracy Fs 50 ppm (when internal clock is used) MUTE function Fixed Output format Compliant with the IEC61937 digital audio interface standard Test pattern output level 0 dBFS to -120 dBFS fixed PCM test pattern Sampling frequency 96 kHz, 48 kHz, 44.1 kHz, 32 kHz Number of quantization bit 16 bit 2 channel, 24 bit 2 channel Test pattern frequency 1 Hz to (Sampling frequency/2)Hz Test pattern waveform Sine wave, square wave Number of test pattern Maximum 100 kinds Sampling frequency accuracy Fs 50 ppm (when internal clock is used) MUTE function L, R, L + R Output format Compliant with the IEC 60958 digital audio interface standard Test pattern output range -96 to 0 dBm(at 16bit), -144 to 0 dBm (at 24 bit) in 0.1 dBm steps Connectors Coaxial output BNC-R Output impedance 75 Output level 0.5 0.05 V p-p Optical output 1 (Up to 48 kHz of the sampling frequency) TOSLINK TOTX176 Output level : -19dBm fixed and -19dBm to -27dBm variable at 2 kinds Optical output 2 (Up to 96 kHz of the sampling frequency) TOSLINK TOTX179 Output level : -21dBm(min.) and -15dBm(max.) fixed EXT. CLOCK input BNC-R Input level : TTL level *256 times the sampling frequency is input at the 96 kHz of sampling frequency. 512 times the sampling frequency is input at the other sampling frequency. BNC-R Output level : TTL level D-sub 15 pin (female) D-sub 25 pin (female), Compliance with RS-232C standard 210 (W) x 133 (H) x 300 (D) mm approx. 3.9 kg 100 to 240 VAC, 50/60 Hz, approx. 8 W 0 to 50C Optical fiber cable : 1 Power cord : 1 Instruction manual : 1
BIT CLOCK, Fs output Remote control terminal RS-232C terminal Dimensions Weight Power source Operation temp. Accessories
DG-2630
DIGITAL AUDIO SIGNAL GENERATOR
207
DIGITAL AUDIO SIGNAL GENERATOR
MPEG-2 AAC Test Pattern Table (Fixed)
MPEG-2 AAC Test Pattern Table - 1 (Sampling frequency = 48 kHz)
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 Mode 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/.1 3/2/.1 3/2/.1 1+1 2/0/0 3/0/0 2/1/0 3/1/0 2/2/0 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 Bits L 18.75Hz 16 -20dBFS 46.875Hz 16 -20dBFS 187.5Hz 16 -20dBFS 375Hz 16 -20dBFS 562.5Hz 16 -20dBFS 937.5Hz 16 -20dBFS 1.875kHz 16 -20dBFS 3kHz 16 -20dBFS 5250Hz 16 -20dBFS 10.125kHz 16 -20dBFS 15kHz 16 -20dBFS 20.250kHz 16 -20dBFS 93.75Hz 24 0dBFS 93.75Hz 24 -20dBFS 93.75Hz 24 -40dBFS 93.75Hz 24 -60dBFS 93.75Hz 24 -80dBFS 93.75Hz 24 -100dBFS 93.75Hz 24 -120dBFS 937.5Hz 24 0dBFS 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 1125Hz 0dBFS 1125Hz 0dBFS 1125Hz 0dBFS 1125Hz 0dBFS 1125Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 4500Hz 0dBFS 4500Hz 0dBFS 4500Hz 0dBFS 4500Hz 0dBFS 4500Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS R 18.75Hz -20dBFS 46.875Hz -20dBFS 187.5Hz -20dBFS 375Hz -20dBFS 562.5Hz -20dBFS 937.5Hz -20dBFS 1.875kHz -20dBFS 3kHz -20dBFS 5250Hz -20dBFS 10.125kHz -20dBFS 15kHz -20dBFS 20.250kHz -20dBFS 93.75Hz 0dBFS 93.75Hz -20dBFS 93.75Hz -40dBFS 93.75Hz -60dBFS 93.75Hz -80dBFS 93.75Hz -100dBFS 93.75Hz -120dBFS LS 18.75Hz -20dBFS 46.875Hz -20dBFS 187.5Hz -20dBFS 375Hz -20dBFS 562.5Hz -20dBFS 937.5Hz -20dBFS 1.875kHz -20dBFS 3kHz -20dBFS 5250Hz -20dBFS 10.125kHz -20dBFS 15kHz -20dBFS 20.250kHz -20dBFS 93.75Hz 0dBFS 93.75Hz -20dBFS 93.75Hz -40dBFS 93.75Hz -60dBFS 93.75Hz -80dBFS 93.75Hz -100dBFS 93.75Hz -120dBFS RS 18.75Hz -20dBFS 46.875Hz -20dBFS 187.5Hz -20dBFS 375Hz -20dBFS 562.5Hz -20dBFS 937.5Hz -20dBFS 1.875kHz -20dBFS 3kHz -20dBFS 5250Hz -20dBFS 10.125kHz -20dBFS 15kHz -20dBFS 20.250kHz -20dBFS 93.75Hz 0dBFS 93.75Hz -20dBFS 93.75Hz -40dBFS 93.75Hz -60dBFS 93.75Hz -80dBFS 93.75Hz -100dBFS 93.75Hz -120dBFS C 18.75Hz -20dBFS 46.875Hz -20dBFS 187.5Hz -20dBFS 375Hz -20dBFS 562.5Hz -20dBFS 937.5Hz -20dBFS 1.875kHz -20dBFS 3kHz -20dBFS 5250Hz -20dBFS 10.125kHz -20dBFS 15kHz -20dBFS 20.250kHz -20dBFS 93.75Hz 0dBFS 93.75Hz -20dBFS 93.75Hz -40dBFS 93.75Hz -60dBFS 93.75Hz -80dBFS 93.75Hz -100dBFS 93.75Hz -120dBFS LFE 18.75Hz -20dBFS 46.875Hz -20dBFS 187.5Hz -20dBFS 375Hz -20dBFS 562.5Hz -20dBFS 937.5Hz -20dBFS Note
MPEG-2 AAC Test Pattern Table - 2 (Sampling frequency = 32 kHz)
No. 39 40 41 42 43 44 45 46 47 48 49 50 93.75Hz 0dBFS 93.75Hz -20dBFS 93.75Hz -40dBFS 93.75Hz -60dBFS 93.75Hz -80dBFS 93.75Hz -100dBFS 93.75Hz -120dBFS 51 52 53 54 55 56 57 58 Mode 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/.1 3/2/.1 3/2/.1 1+1 2/0/0 3/0/0 2/1/0 3/1/0 2/2/0 3/2/.1 3/2/.1 3/2/.1 3/2/.1 3/2/.1 Bits L 12.5Hz 16 -20dBFS 31.25Hz 16 -20dBFS 125Hz 16 -20dBFS 250Hz 16 -20dBFS 500Hz 16 -20dBFS 1kHz 16 -20dBFS 2kHz 16 -20dBFS 5kHz 16 -20dBFS 14kHz 16 -20dBFS 10.125kHz 16 -20dBFS 62.5Hz 24 0dBFS 62.5Hz 24 -20dBFS 62.5Hz 24 -40dBFS 62.5Hz 24 -60dBFS 62.5Hz 24 -80dBFS 62.5Hz 24 -100dBFS 62.5Hz 24 -12dBFS 1kHz 24 0dBFS 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 937.5Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 937.5Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 4kHz 0dBFS 4kHz 0dBFS 4kHz 0dBFS 4kHz 0dBFS 4kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS R 12.5Hz -20dBFS 31.25Hz -20dBFS 125Hz -20dBFS 250Hz -20dBFS 500Hz -20dBFS 1kHz -20dBFS 2kHz -20dBFS 5kHz -20dBFS 14kHz -20dBFS 10.125kHz -20dBFS 62.5Hz 0dBFS 62.5Hz -20dBFS 62.5Hz -40dBFS 62.5Hz -60dBFS 62.5Hz -80dBFS 62.5Hz -100dBFS 62.5Hz -120dBFS LS 12.5Hz -20dBFS 31.25Hz -20dBFS 125Hz -20dBFS 250Hz -20dBFS 500Hz -20dBFS 1kHz -20dBFS 2kHz -20dBFS 5kHz -20dBFS 14kHz -20dBFS 10.125kHz -20dBFS 62.5Hz 0dBFS 62.5Hz -20dBFS 62.5Hz -40dBFS 62.5Hz -60dBFS 62.5Hz -80dBFS 62.5Hz -100dBFS 62.5Hz -120dBFS RS 12.5Hz -20dBFS 31.25Hz -20dBFS 125Hz -20dBFS 250Hz -20dBFS 500Hz -20dBFS 1kHz -20dBFS 2kHz -20dBFS 5kHz -20dBFS 14kHz -20dBFS 10.125kHz -20dBFS 62.5Hz 0dBFS 62.5Hz -20dBFS 62.5Hz -40dBFS 62.5Hz -60dBFS 62.5Hz -80dBFS 62.5Hz -100dBFS 62.5Hz -120dBFS C 12.5Hz -20dBFS 31.25Hz -20dBFS 125Hz -20dBFS 250Hz -20dBFS 500Hz -20dBFS 1kHz -20dBFS 2kHz -20dBFS 5kHz -20dBFS 14kHz -20dBFS 10.125kHz -20dBFS 62.5Hz 0dBFS 62.5Hz -20dBFS 62.5Hz -40dBFS 62.5Hz -60dBFS 62.5Hz -80dBFS 62.5Hz -100dBFS 62.5Hz -120dBFS LFE 12.5Hz -20dBFS 31.25Hz -20dBFS 125Hz -20dBFS 187.5Hz -20dBFS 187.5Hz -20dBFS Note
62.5Hz 0dBFS 62.5Hz -20dBFS 62.5Hz -40dBFS 62.5Hz -60dBFS 62.5Hz -80dBFS 62.5Hz -100dBFS 62.5Hz -120dBFS
1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 1kHz 0dBFS 62.5Hz 0dBFS 187.5kHz 0dBFS Matrix mixdown factor (PCE) Dual Mono (PCE) Stereo 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 1Hz 0dBFS 2kHz 0dBFS 2kHz 0dBFS 2kHz 0dBFS 2kHz 0dBFS 2kHz 0dBFS 1Hz 0dBFS 500Hz 0dBFS 500Hz 0dBFS 500Hz 0dBFS 500Hz 0dBFS 500Hz 0dBFS L, C, R L, C, R (PCE) 1Hz 0dBFS L, C, R, S L,R,Ls,Rs (PCE) 8kHz 0dBFS 8kHz 0dBFS 8kHz 0dBFS 8kHz 0dBFS 8kHz 0dBFS 62.5Hz 0dBFS 62.5Hz 0dBFS 62.5Hz 0dBFS 62.5Hz 0dBFS 62.5Hz 0dBFS
937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 281.25Hz 0dBFS Matrix mixdown factor (PCE) Dual Mono (PCE) Stereo 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 0dBFS 937.5Hz 937.5Hz 0dBFS 0dBFS 2250Hz 562.5Hz 0dBFS 0dBFS 2250Hz 562.5Hz 0dBFS 0dBFS 2250Hz 562.5Hz 0dBFS 0dBFS 2250Hz 562.5Hz 0dBFS 0dBFS 2250Hz 562.5Hz 0dBFS 0dBFS L, C, R L, C, R (PCE) 937.5Hz 0dBFS L, C, R, S L, R, Ls, Rs (PCE) 9000Hz 0dBFS 9000Hz 0dBFS 9000Hz 0dBFS 9000Hz 0dBFS 9000Hz 0dBFS 93.75Hz 0dBFS 93.75Hz 0dBFS 93.75Hz 0dBFS 93.75Hz 0dBFS 93.75Hz 0dBFS
59 60 61 62 63 64 65 66 67 68 69 70 71 72 PCE bitrate= 96kbps bitrate= 128kbps bitrate= 192kbps 73 74
PCE bitrate= 96kbps bitrate= 128kbps bitrate= 192kbps
208
DIGITAL AUDIO SIGNAL GENERATOR
DG-2630
PCM Test Pattern Table ( initial value)
MPE2 AAC Test Pattern Table - 3 (Sampling frequency = 44.1 kHz)
No. 75 76 77 78 79 80 81 82 83 84 85 86 Mode 3/2/.1 3/2/.1 3/2/.1 3/2/0 3/2/0 3/2/0 3/2/0 3/2/0 3/2/.1 3/2/.1 3/2/.1 3/2/.1 Bits L 430664Hz 16 -20dBFS 1722656Hz 16 -20dBFS 689.0625Hz 16 -20dBFS 1378.125Hz 16 -20dBFS 2756.25Hz 16 -20dBFS 5512.5Hz 16 -20dBFS 19293.75Hz 16 -20dBFS 1033.594Hz 16 -20dBFS 1033.594Hz 24 0dBFS 1033.594Hz 24 0dBFS 1033.594Hz 24 0dBFS 1033.594Hz 24 0dBFS R 430664Hz -20dBFS 1722656Hz -20dBFS 689.0625Hz -20dBFS 1378.125Hz -20dBFS 2756.25Hz -20dBFS 5512.5Hz -20dBFS 19293.75Hz -20dBFS 1033.594Hz -20dBFS 4134.375Hz 0dBFS 4134.375Hz 0dBFS 4134.375Hz 0dBFS 4134.375Hz 0dBFS LS 430664Hz -20dBFS 1722656Hz -20dBFS 689.0625Hz -20dBFS 1378.125Hz -20dBFS 2756.25Hz -20dBFS 5512.5Hz -20dBFS 19293.75Hz -20dBFS 1033.594Hz -20dBFS 2067.186Hz 0dBFS 2067.186Hz 0dBFS 2067.186Hz 0dBFS 2067.186Hz 0dBFS RS 430664Hz -20dBFS 1722656Hz -20dBFS 689.0625Hz -20dBFS 1378.125Hz -20dBFS 2756.25Hz -20dBFS 5512.5Hz -20dBFS 19293.75Hz -20dBFS 1033.594Hz -20dBFS 516.797Hz 0dBFS 516.797Hz 0dBFS 516.797Hz 0dBFS 516.797Hz 0dBFS C 430664Hz -20dBFS 1722656Hz -20dBFS 689.0625Hz -20dBFS 1378.125Hz -20dBFS 2756.25Hz -20dBFS 5512.5Hz -20dBFS 19293.75Hz -20dBFS 1033.594Hz -20dBFS 8268.75Hz 0dBFS 8268.75Hz 0dBFS 8268.75Hz 0dBFS 8268.75Hz 0dBFS LFE Note 430664Hz -20dBFS 1722656Hz -20dBFS 689.0625Hz -20dBFS Data No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Sampling freq.(Hz) 44.1k 32k 48k 96k Test signal freq.(Hz) 1k 4 8 16 63 125 250 500 1k 2k 4k 8k 10k 12.5k 16k 18k 20k 1k 125 4k 10k 16k 1k 4 8 16 63 125 250 500 1k 2k 4k 8k 10k 12.5k 14k 14.5k 1k 4 8 16 63 125 250 500 1k 2k 4k 8k 10k 12.5k 16k 18k 20k 22k 1k 4 8 16 63 125 250 500 1k 2k 4k 8k 10k 14k 20k 40k 44k Level L-ch -12 0 -12 MUTE -12 O -1 -3 -6 -10 -30 -60 -90 0 -12 0 -12 -1 -3 -6 -10 -30 -60 -90 -12 0 -12 -1 -3 -6 -10 -30 -60 -90 -12 (dBm) channel status (C bit) R-ch Copy bit Emphasis Other bit -12 Prohibit OFF all"0" 0 -12 MUTE -12 ON ON ON ON ON 0 OFF -1 -3 -6 -10 -30 -60 -90 0 SCMS 7Hz OK -12 Prohibit 0 -12 -1 -3 -6 -10 -30 -60 -90 -12 0 -12 -1 -3 -6 -10 -30 -60 -90 -12 User data (U bit) all"0" Validity flag Flag "0"
86.136Hz 0dBFS 86.136Hz 0dBFS 86.136Hz 0dBFS 86.136Hz 0dBFS
bitrate= 96kbps bitrate= 128kbps bitrate= 192kbps
DG-2630
DIGITAL AUDIO SIGNAL GENERATOR
209

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