Audio Precision音频分析仪测试介绍.pptVIP

  1. 1、本文档共23页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
  5. 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
  6. 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们
  7. 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
  8. 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
AP Introduction THD + N Analyzer input and XLR connector AP Panel Audio specifications THD + N AP introduction Analyzer input cable connection - Single ended output (MP3 headphone) 2 – Signal, 3 – Ground. e.g., Channel A: 2 – Left output, 3 – Ground Channel B: 2 – Right output, 3 – Ground - Differential output (loudspeaker) 2 – Non-inverting signal, 3 – Inverting signal AP introduction XLR Connector AP introduction XLR Connector - In reference to its original manufacturer, James H. Cannon, founder of Cannon Electric in Los Angeles, California (now part of ITT Corporation), the connector is colloquially known as a cannon plug or cannon connector. - The most common is the 3-pin XLR3, used almost universally as a balanced audio connector for high quality microphones and connections between equipment. - XLR plugs and sockets are used mostly in professional audio and video electronics cabling applications. Home audio and video electronics normally use RCA connectors. AP introduction AP1 Panel AP introduction THD + N vs Level Curve AP introduction Analyzer Panel AP introduction Sweep Definitions Panel AP introduction Frequency Response - Frequency Response measurements are made by stepping or sweeping a sine wave oscillator, at a fixed amplitude, across the spectrum of interest. - Usually stated in terms of dB variation from some reference midband frequency(e.g., 1KHz). - The test may be easily modified. The frequency range and direction of sweep can be changed from the 20 KHz ~ 20 Hz stored by entering new values for START and STOP under SWEEP (F9) DEFINITIONS panel. AP introduction Signal to Noise Ratio - Signal to noise ratio, as a relative measurement, must be made with reference to a specific output amplitude from the device under test. - The rated output amplitude must be calibrated as the 0 dBr reference of the analyzer. Then the residual output amplitude (noise) is measured and expressed in dB relative to

文档评论(0)

ma982890 + 关注
实名认证
文档贡献者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档