原帖由 shiluo_0567 于 2007-1-25 15:06 发表( L% r# y4 i* P2 e+ l; z: J
换上了SQ714最新驱动。声卡有质的变化,这是测试图 . D6 b, w" B1 N( B0 p) c
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Envy24 Family Audio (WDM)RightMark Audio Analyzer 测试
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测试链: 外部环路 (线路输出 - 线路输入)* G# E f2 I" r3 i4 U d) g% M
采样模式: 16-bit, 48 kHz9 p2 J9 Q) z% |/ ]. @) F' @
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% L* F! M' H/ `/ K* a0 r# F% ~5 V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 |
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常规性能: 很好; K# b8 M; b8 Z+ A) E
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; y: Y$ m- g: x% I频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png 8 I) v0 E. }: |
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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( Z) b) ^& g7 z) A2 R! _4 C% U; ]平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png
% B7 t9 \ b0 q. C H. z1 b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 | 8 p; w" f' L' ]
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3 c1 r) j; Z- ]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 | 8 B8 v* \3 \& S0 G2 Z! p. e( e+ N3 a
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/ O# @$ X+ `6 y9 m0 k5 qTHD + 噪声 (在 -3 dB FS)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/thd.png
# Z) }& S, }5 S, I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 |
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9 f d: P+ N8 J2 F3 L0 ^ o6 z. @互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png ( o" \; L' f+ a2 M. G, i# w
参数 | 左 | 右 | IMD + 噪声, %: | 0.0194 | 0.0201 | IMD + 噪声(A-加权), %: | 0.0123 | 0.0130 | & m) V+ b- T% R& F
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声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png % }% q3 Y& A9 k
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 | 9 B: u. V' V1 n! }
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IMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png
- a/ `, Q# a$ N; h) u: R" f6 n; u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 | 7 a' C% a L: b" L% P; C
本报告由 RightMark Audio Analyzer 5.5 生成 |