原帖由 shiluo_0567 于 2007-1-25 15:06 发表1 f/ }$ i3 L+ ^' S5 O. ^
换上了SQ714最新驱动。声卡有质的变化,这是测试图 7 g/ k* u4 q' r
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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)
) v& b1 w T: s2 J8 j采样模式: 16-bit, 48 kHz
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' a+ b! C; |' J5 N, o6 h$ S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 | : E1 e. N4 K1 C
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常规性能: 很好
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& E) h0 P) f/ P+ B2 p; i2 B频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png q2 b* |" F) J) K0 r( h; 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 | 6 `: K( o, v. r2 |( O) `3 }
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平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png
# p4 u( ]6 r, o0 ?" V7 L" F0 d| 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 | ! E% x6 Z8 I* S1 j" k; G
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动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png % O2 B/ l" S1 E$ m9 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 | 4 \0 B, e, G' v( p+ u
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5 {( U+ o- `3 _$ @8 |: cTHD + 噪声 (在 -3 dB FS)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/thd.png
* ~6 ~! U3 y( P: E+ {3 l, 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 |
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2 S. F, a# P0 z; ^) {互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png 9 W) G% J7 `# C7 F @) y% Q) m
| 参数 | 左 | 右 | | IMD + 噪声, %: | 0.0194 | 0.0201 | | IMD + 噪声(A-加权), %: | 0.0123 | 0.0130 | 3 [ ~$ S- S8 i& P N9 S9 T
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9 t; E9 f: n* I6 [: K6 ~' f声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png # u+ B5 x7 {6 h! D5 F
| 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 |
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9 t3 B1 W, w0 Q' cIMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png
+ _$ ] O3 c" Z$ O| 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 |
1 y6 T$ {& G- V! @" W: q本报告由 RightMark Audio Analyzer 5.5 生成 |