原帖由 shiluo_0567 于 2007-1-25 15:06 发表3 n( o1 C5 I9 Q* T& D& w- d& Y
换上了SQ714最新驱动。声卡有质的变化,这是测试图 ; Z7 \. I0 t; {6 d% Z9 A7 c; m
, a3 n, H4 b" J5 R+ ~. rEnvy24 Family Audio (WDM)RightMark Audio Analyzer 测试7 n+ U+ \$ L* A
, E2 r2 z, [8 i0 X4 H: c6 k7 O: W) I测试链: 外部环路 (线路输出 - 线路输入)7 X0 h% c( z( a0 u( D5 B6 n
采样模式: 16-bit, 48 kHz9 X% L6 ^# o+ ]0 `# d$ Q a9 Z# d& G
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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 | 5 y) h/ }# L6 b2 s$ F+ w
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常规性能: 很好. N8 h% T3 w Y7 a; L
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) |" O' n& N$ M频率响应file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/fr.png
4 n4 N2 H% \8 I' _2 p2 ^$ C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 | 1 t$ e' C- g9 }, s
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平底噪声file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/noise.png 6 G2 G# K! ]/ w2 F: p
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 | 6 M( a6 j9 u, i5 m
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1 _( n6 {2 f+ r7 l; E& l5 V动态范围file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/dynamics.png 5 ?' g0 k* \2 F2 S) g- S) t0 Q
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 | . I. ?5 e# N/ a; a3 g# g* `9 A. s& C4 w
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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
4 b& K) m$ g1 s8 \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
% |3 A6 e- r7 R. i5 c$ d" \/ {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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8 P7 q4 ~4 I& P. Y8 h/ U! x# E声道分离度file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/cross.png ) g2 j7 s: L t- \, G
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 | & E. y4 x \; C! {( K' I/ \, e4 w$ R
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IMD (扫描音调)file:///C:/Documents%20and%20Settings/Administrator/桌面/Envy24%20Family%20Audio%20(WDM)/imdswept.png
' S! k5 e/ j- F# i1 B( B0 Q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 |
: h* ^- W6 k5 D本报告由 RightMark Audio Analyzer 5.5 生成 |