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1、中心人民播送电台CHINANATIONALRADIO告REPORT TEST检测编号(Serial No.)：测 报检From ： 送检单位Apply检测种类Test Type：调音台检测：Data Test 检测日期2009/5/11检 测 报 告TEST REPORTZIRKON规格型号 Model调音台名称 Name LAWO商标 Trademark检测类 Test Type 送检单 Apply Firm 试件等 Sample Grade LAWO序生产单Serial NoManufacturerSystem TwoAudio Procession 仪器型 System TwoModel
2、 测试仪 Test lnstrumentAudio Procession 生产厂 Manufacturer1GY7198 广抽样基 Sample 声频通路运行技术标测量方 1 样品数 GY/检测依 T192-200Sample NumberSpecifications数字音频设备的满中心抽样地电 Sample Place2009-05-11测试日 Test DataA/D D/A A/频响 THD+、串扰、噪声指标满足录制播出结论意见 Test Conclusion求，到达说明书参考指标。满度电平符合国家标准调音台附带配置软件能够自行编辑自己所需的功能可实路信号的电平同时检测，可以满足播出功
3、用。假设配备显示掌握件和触摸屏幕，能够敏捷显示掌握调音台参数信息签发日期 2009-05-11Certificate Data 见附备注Note Confirm：Check：测试人员：Main Tester检 测 结 果TEST RESULTSAudio PrecisionA-D FREQUENCY RESPONSE05/11/09 17:22:10+2.5+-2.-7.5-10B-12.5-1-17.-2-22.-22010520501252100HzAxisDataThickLine StyleColorLeft1SolidDSP Anlr.Level ACyanLeft1SolidDSP
4、 Anlr.Level BYellowA-D FREQ RESP.at21、 A/D 转换，输入电平 4dBu 频率响应曲线：TDH+NAudio PrecisionA-D THD+N vs FREQUENCY05/11/09 17:20:05-70-75-80-85d-90B-9-10-10-11201025510205021kHz AxisDataLine StyleColorThickLeftDSP Anlr.THD+N Ratio1CyanSolidLeftDSP Anlr.THD+N RatioSolidYellow1A-D THD+N VS FREQ.at2通道间串扰：Audio
5、PrecisionA-D CROSSTALK or SEPARATION vs05/11/09 17:20:30FREQUENCY-50-60-70-80d-90B-100-110-120-130-1401k2k5k10k20k5002050100200HzAxisLine StyleColorDataThickLeftCyan1SolidDSP Anlr.CrosstalkLeftYellowSolidDSP Anlr.Crosstalk1A-D XTALK VS FREQ.at2-40Audio PrecisionA-D FASTTEST (Multitone) NOISE05/11/09
6、 17:22:27-20-20-40-40-60-60dd-80-80BBFF-100-100S-12-12-14-14-16-162010125102520500HzAxisLineStyleThickDataColorLeft1Fasttest.Ch.1 AmplCyanSolidRight1Fasttest.Ch.2 AmplYellowSolidA-D MULTI NOISE.at2噪声-20dBFs 转换，输入电平 2、DA 率响应曲线：05/11/09 17:06:03D-A FREQUENCYRESPONSEAudio Precision+25+20+15+10+5dB+0u-5
7、-10-15-2020k1k5010201002005002k5k10kHzAxisThickColorLine StyleDataLeftAnlr.Level ASolidCyan1Left1SolidYellowAnlr.Level BD-A FREQ RESP.at2THD+N：Audio PrecisionD-A THD+N vs FREQUENCY05/11/09 17:07:02-70-75-80-85d-90B-9-10-10-11201025510202501kHzAxisDataColorLine StyleThickLeftAnlr.THD+N RatioCyan1Soli
8、dLeft1YellowAnlr.THD+N RatioSolidD-A THD+N VS FREQ.at2通道间串扰：-20-40-60d-80Bu-100-120-14020501002005001k2k5k10kHzColorLine StyleThickDataAxisLeftCyanSolid1Fasttest.Ch.1 AmplLeftSolid1Fasttest.Ch.2 AmplYellowD-A MULTI XTALK.at2Audio PrecisionD-A FASTTEST (Multitone)05/11/09 17:04:59CROSSTALK or SEPARAT
9、ION多频噪声Audio PrecisionD-A FASTTEST (Multitone) NOISE05/11/09 17:06:59+40+20+0-20d-40Bu-60-8-10-1210512505102020HzAxisThickDataColorLine StyleLeft1SolidCyanFasttest.Ch.1 AmplLeftSolid1YellowFasttest.Ch.2 AmplD-A MULTI NOISE.at2Audio PrecisionA-A FREQUENCY RESPONSE05/11/09 16:58:12+10+7.5+5d+2.5Bu+0-2
10、.5-5-7.520k5k10k5002k1k1002050200Hz3、 AA 转换，输入电平 4dbu 率响应曲线：AxisThickLine StyleColorDataLeftSolidCyan1Anlr.Level ALeftAnlr.Level BYellowSolid1Frequency Response from 20k to 20 Hz. F4 first to set 0 dBr at 1kHz. The 2 Ch Ampl Function Reading meter BW isset to 500kHz so the bandwidth is the same as t
11、he Level meter. Optimize for detail.A-A FREQ RESP.at2THD+N：Audio PrecisionA-A THD+N vs FREQUENCY05/11/09 16:59:09+0-20-40d-60B-8-10-12201025105205021kHzAxiDatThicColoLine StylLefAnlr.THD+N RatiSoliCya1LeftSolidAnlr.THD+N RatioYellow1Consecutive sweeps produce a stereo THD+N sweep of Ch A and Ch B wh
12、en data 1 is set for THD+N and the Stereo box ischecked. The upper Analyzer bandwidth is 22kHz. At a 7kHz fundamental only the 2nd and 3rd harmonics are included,above 11kHz only the noise is included in the measurement bandwidth. For band-limited systems IMD testing is better.A-A THD+N VS FREQ.at2通
13、道间串扰：Audio PrecisionA-A CROSSTALK or SEPARATION vs05/11/09 17:01:51FREQUENCY-20-40-60d-80B-100-120-14020k5k2k50010k1k2002050100Hz+0AxisColorThickLine StyleDataLeft1CyanSolidAnlr.CrosstalkLeft1Anlr.CrosstalkYellowSolidThe Crosstalk Function meter setting uses the driven channel signal to set the band
14、pass filter while reading the channelwith no signal applied. The data is a ratio of the quiet channel signal to the driven channel at each frequency.Set AnlrCrosstalk in Data 1 and check the Stereo box. Stereo sweeps will then swap driven and measured channels automatically.A-A XTALK VS FREQ.at2多频噪声
15、Audio PrecisionA-A FASTTEST (Multitone) NOISE05/11/09 16:57:26-20-40-60d-80Bu-100-12-141025102050251kHzAxiDatThicLine StylColoLefFasttest.Ch.1 AmpCyaSoli1LeftSolidYellow1Fasttest.Ch.2 AmplDSP required. 30 tone spacing Noise only. F9 for a new sample, F6 to reprocess the current acquisition or loaded
16、waveform file. Uses 48kMulTon30+6.agm waveform file to generate the stereo signal.In the FastTest Digital Analyzer change the Processing field to Freq Corrected if frequencies are shifted from clock errors.For all but Xtalk use the 48kMulTon30+6-Mono.ads sweep table. This lists only freqs in both channels.A-A MULTI NOISE.at2