原帖由 shiluo_0567 于 2007-1-25 15:06 发表
" J; W1 `2 k( q$ s换上了SQ714最新驱动。声卡有质的变化,这是测试图 " G! W- M; p/ ~3 h( g& I/ F
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Envy24 Family Audio (WDM)RightMark Audio Analyzer 测试
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* K/ h' n! O$ c5 B/ o; k测试链: 外部环路 (线路输出 - 线路输入)4 [4 G2 G* J0 G# l
采样模式: 16-bit, 48 kHz
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- O4 X I/ u! I5 A+ N0 ?* }摘要频率范围(从 40 Hz 以 15 kHz), dB: | +0.04, -0.32 | 很好 | Noise level, dB (A): | -91.7 | 很好 | Dynamic range, dB (A): | 91.6 | 很好 | THD, %: | 0.019 | 好 | IMD + 噪声, %: | 0.019 | 很好 | 立体声分离度, dB: | -84.6 | 很好 | IMD (10 kHz), %: | 0.015 | 很好 | ( p" g2 T/ T9 K
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常规性能: 很好
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/ n. v! D- B" D* k/ H4 _频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png
5 a! C) C3 j4 m9 r频率范围 | 响应 | 从 20 Hz 到 20 kHz, dB | -0.61, +0.04 | 从 40 Hz 到 15 kHz, dB | -0.32, +0.04 |
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平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png $ t. o, r% C! H# x8 p2 F) {+ L
参数 | 左 | 右 | RMS 功率, dB: | -77.4 | -70.8 | RMS 功率 (A-加权), dB: | -91.5 | -91.7 | 峰值电平, dB FS: | -68.7 | -64.4 | 直流偏移, %: | -0.24 | -0.58 |
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) @, s; ^ u8 ~+ G( W动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png . \1 m6 I1 Q! f% \
参数 | 左 | 右 | 动态范围, dB: | +82.1 | +74.3 | 动态范围 (A-加权), dB: | +91.6 | +91.7 | 直流偏移, %: | -0.20 | -0.48 |
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THD + 噪声 (在 -3 dB FS)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/thd.png + j6 r. i- O% H
参数 | 左 | 右 | THD, %: | 0.0186 | 0.0198 | THD + 噪声, %: | 0.0207 | 0.0323 | THD + 噪声(A-加权), %: | 0.0251 | 0.0266 | + C( U; F5 O! \- g- u" i
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5 M P+ B/ v, F" A互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png 5 m* P; w0 o3 v4 a3 M$ W
参数 | 左 | 右 | IMD + 噪声, %: | 0.0194 | 0.0201 | IMD + 噪声(A-加权), %: | 0.0123 | 0.0130 | ) H$ x4 C+ ~& k4 D5 S
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声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png 2 O* f( a7 n4 u8 e! h
参数 | L <- R | L -> R | 分离度(100 Hz), dB: | -82 | -77 | 分离度(1 kHz), dB: | -84 | -83 | 分离度(10 kHz), dB: | -83 | -83 | * Y0 z. l! T6 K/ q1 [/ P
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9 y5 u% h& I ]4 ?' uIMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png # s5 b( Q5 o: L9 h) g# B1 g- E' J
参数 | 左 | 右 | IMD + 噪声(5 kHz), %: | 0.0160 | 0.0168 | IMD + 噪声(10 kHz), %: | 0.0156 | 0.0141 | IMD + 噪声(15 kHz), %: | 0.0135 | 0.0139 | + ~; J. {. X6 m" d& ]
本报告由 RightMark Audio Analyzer 5.5 生成 |