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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Summary 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 | 6 Z* |: V2 l7 S; p' j' F; g
| Excellent |
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6 V& I' e+ e9 m( b6 a# g8 EFrequency response
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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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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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| 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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) L: h( D% w& i% k1 _& UTHD + 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 , S, W- \5 z. H9 ]" P+ \. m# ~; a, j
' x0 }9 Y$ a; I# R | Left | Right | IMD + Noise, % | +0.0060 | +0.0060 | IMD + Noise (A-weighted), % | +0.0053 | +0.0052 |
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Stereo crosstalk / a# i$ c0 [8 |' q$ |$ `' ]% J7 A
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| 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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/ O& N/ N0 F2 |% uIMD (swept tones) ( X! @4 X8 X) {7 B9 v1 y
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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 |
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对比一下我的X-FI成绩吧……频响差距那么大肯定不对头的
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, \+ t" d2 E9 c8 C1 p[ 本帖最后由 jjx01 于 2008-3-11 11:13 编辑 ] |