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谁能说说CTA的那几项音频指标的具体含义和定义,测试的意义?为什么要测试此指标?每一项测试不过会导致什么情况?请高手或达人指教----就我所知CTA都测以下几项:
•1、Sending sensitivity/frequency response
发送灵敏度/频率响应
•2、Sending loudness rating
发送响度评定值(SLR)
•3、Receiving sensitivity/frequency response
接收灵敏度/频率响应
•4、Receiving loudness rating
接收响度评定值(RLR)
Receiving loudness rating, maximum
•5、Side Tone Masking Rating (STMR)
侧音掩蔽评定值(STMR)
•6、Stability margin 稳定度储备
•7、Distortion Sending 发送失真
•注:除了Receiving loudness rating, maximum要在最大音量下测试其他项都要早正常音量下测试。 |
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