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RightMark Audio Analyzer test report | Testing device | SB X-Fi Audio [A000] | | Sampling mode | 16-bit, 44 kHz | | Interface | MME | | Testing chain | External loopback (line-out - line-in) | | RMAA Version | 6.0.4 | | | | | | 20 Hz - 20 kHz filter | ON | | Normalize amplitude | ON | | Mono mode | OFF | | Calibration singal, Hz | 1000 | | Polarity | correct/correct |
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| Frequency response (from 40 Hz to 15 kHz), dB | +0.01, -0.07 | Excellent | | Noise level, dB (A) | -95.4 | Excellent | | Dynamic range, dB (A) | 95.5 | Excellent | | THD, % | 0.0023 | Excellent | | THD + Noise, dB (A) | -86.8 | Good | | IMD + Noise, % | 0.0060 | Excellent | | Stereo crosstalk, dB | -96.0 | Excellent | | IMD at 10 kHz, % | 0.011 | Very good | | General performance | ! E5 u0 n8 z2 I8 F0 u) Y$ @
| Excellent |
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Frequency response ) b/ q# ~1 N6 j: y- u) g5 u
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| From 20 Hz to 20 kHz, dB | -0.28, +0.01 | | From 40 Hz to 15 kHz, dB | -0.07, +0.01 |
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# v0 V+ \ x' ]" [Noise level
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| Left | Right | | RMS power, dB | -94.1 | -94.0 | | RMS power (A-weighted), dB | -95.5 | -95.3 | | Peak level, dB FS | -82.4 | -82.4 | | DC offset, % | -0.0 | -0.0 |
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, B+ U, ~" v5 v" z! o/ W+ K& x/ }Dynamic range
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1 M9 \( j+ e# l$ A( @" |4 K, o | Left | Right | | Dynamic range, dB | +94.1 | +94.0 | | Dynamic range (A-weighted), dB | +95.5 | +95.4 | | DC offset, % | -0.00 | -0.00 |
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THD + Noise (at -3 dB FS)
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| Left | Right | | THD, % | +0.0023 | +0.0023 | | THD + Noise, % | +0.0047 | +0.0047 | | THD + Noise (A-weighted), % | +0.0046 | +0.0046 |
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Intermodulation distortion
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| Left | Right | | IMD + Noise, % | +0.0060 | +0.0060 | | IMD + Noise (A-weighted), % | +0.0053 | +0.0052 |
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4 [# M0 R' P ?; e6 t( t5 }' R0 [* hStereo crosstalk y3 t9 q1 G w- V& F a' a5 k4 q
0 S* V& H- u; z$ _ | Left | Right | | Crosstalk at 100 Hz, dB | -97 | -93 | | Crosstalk at 1000 Hz, dB | -96 | -94 | | Crosstalk at 10000 Hz, dB | -79 | -83 |
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IMD (swept tones)
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| Left | Right | | IMD + Noise at 5000 Hz, | 0.0110 | 0.0105 | | IMD + Noise at 10000 Hz, | 0.0096 | 0.0090 | | IMD + Noise at 15000 Hz, | 0.0130 | 0.0120 |
% A3 Q- |9 L j. B1 N- }对比一下我的X-FI成绩吧……频响差距那么大肯定不对头的 % H5 W+ ^/ M" c8 V0 |3 C& n* _6 M
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[ 本帖最后由 jjx01 于 2008-3-11 11:13 编辑 ] |