原帖由 shiluo_0567 于 2007-1-25 15:06 发表
# @" o/ z( }% W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9 C4 `2 q+ x' c$ y" y+ K' s5 T
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测试链: 外部环路 (线路输出 - 线路输入)
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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
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* u; `; z: [& N0 o5 a- W频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png * u! M3 H) ]5 ~* q, \0 P
| 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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7 b0 K. [8 N/ q# `平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png 1 e! ^$ M- B G8 H) |
| 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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动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png
& ~& W* n0 k9 B# {! t" h| 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 | ' O3 G8 _: r/ s
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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 % i y0 B, U5 J/ a$ l; j5 @; {
| 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 | - r, o& E. l' D0 E4 P7 t5 M# k
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( a; g3 k; i: S, E' |6 D互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png - o6 i) `% Y/ f) o, [: K
| 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
, w4 R. ^: M% U; T| 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 | - D, q8 O5 y( Z3 U. K( V- E7 o/ Y
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IMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png # e! k1 S' w" W4 b/ U- z
| 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 | & M( H, i9 |1 w7 g, n2 ]1 w
本报告由 RightMark Audio Analyzer 5.5 生成 |