原帖由 shiluo_0567 于 2007-1-25 15:06 发表9 z; d7 l, w# h4 B3 O
换上了SQ714最新驱动。声卡有质的变化,这是测试图
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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)
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% U, A! c, w: r7 u. 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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2 |8 f3 d! r' l常规性能: 很好
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J& B! s3 f$ q# ]0 f F) M; }/ ]频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png . ~9 D- B1 Z, x1 w
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 | . Y2 C) P5 c3 R! Z& d7 a% f
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平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png , K2 z! X1 E* q% g; z
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 | ( |2 ?; J9 E r, P6 U9 \1 {: h
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" I; ?8 g H9 c. k动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png / L3 F, x. M0 ]8 F2 {: d
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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- Y1 w" l, T, E& V3 v' [THD + 噪声 (在 -3 dB FS)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/thd.png ; \; s4 `, ], 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 | 8 N% R" |$ e8 Y; d. d9 D
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互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png
7 M6 o( C' [8 t5 u. @2 K. m参数 | 左 | 右 | IMD + 噪声, %: | 0.0194 | 0.0201 | IMD + 噪声(A-加权), %: | 0.0123 | 0.0130 |
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声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png
# r/ L1 f9 S# w' `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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& a9 e- `2 b2 ]IMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png
1 z. U( m/ ~ R) A' @( A# H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 O3 ]9 t9 Y7 ^! F
本报告由 RightMark Audio Analyzer 5.5 生成 |