原帖由 shiluo_0567 于 2007-1-25 15:06 发表9 Z! `5 B o8 O! X5 {9 p
换上了SQ714最新驱动。声卡有质的变化,这是测试图 ! l' {* N8 R5 c0 G0 p
+ \, N' l* z1 J2 nEnvy24 Family Audio (WDM)RightMark Audio Analyzer 测试
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7 ~5 n* N' K0 ~. R% m/ ^测试链: 外部环路 (线路输出 - 线路输入)
/ _/ }/ }5 H' Q4 i采样模式: 16-bit, 48 kHz
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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 | . }$ V6 p }; s" V
0 p* v. u/ v. Q8 A' k常规性能: 很好& | C9 u5 i& @% |, f
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0 h" `, s4 m, O2 I+ ~8 l$ L7 M频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png
6 f8 ^. ^3 E/ }5 @| 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 | G9 X/ N& D3 ^: V( |6 c0 j, p" p
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平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png
( ~1 w; w/ D0 `% A Y| 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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# `9 A8 D! A; H6 n3 r动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png
3 C% V) Q' x- b0 q' k| 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
% X9 W) [$ F9 |: b/ ~7 f( W* C6 M| 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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互调失真file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imd.png
6 e8 A: J& _& f: D8 `| 参数 | 左 | 右 | | IMD + 噪声, %: | 0.0194 | 0.0201 | | IMD + 噪声(A-加权), %: | 0.0123 | 0.0130 | 8 w0 Q9 ^5 f2 j0 z9 I
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# x- y4 u4 |$ p) w声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png 6 z+ E* S* } A4 z
| 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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8 [1 n& k0 W. s& z2 JIMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png
/ _$ `& H- a& p" x+ w2 Z4 T2 E! @| 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 |
: f3 c {1 t; ^) n) P5 m本报告由 RightMark Audio Analyzer 5.5 生成 |