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本帖最后由 kt163 于 2009-2-5 17:53 编辑 $ u' J5 ^4 P w8 R
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RightMark Audio Analyzer test report Testing device | E-DSP Wave [C000] | Sampling mode | 24-bit, 44 kHz | Interface | MME | Testing chain | External loopback (line-out - line-in) | RMAA Version | 6.2.1 | | | | | 20 Hz - 20 kHz filter | ON | Normalize amplitude | OFF | Level change | -1.5 dB / -1.4 dB | Mono mode | OFF | Calibration singal, Hz | 1000 | Polarity | correct/correct |
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Summary Frequency response (from 40 Hz to 15 kHz), dB | +0.07, -0.05 | Excellent | Noise level, dB (A) | -112.4 | Excellent | Dynamic range, dB (A) | 112.2 | Excellent | THD, % | 0.0015 | Excellent | THD + Noise, dB (A) | -93.2 | Very good | IMD + Noise, % | 0.0017 | Excellent | Stereo crosstalk, dB | -94.6 | Excellent | IMD at 10 kHz, % | 0.0029 | Excellent | General performance | : O9 o7 u9 ]* V# Z; L [
| Excellent |
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% S; N( ]; z# Z6 TFrequency response 6 n5 r7 @) T1 b' F
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From 20 Hz to 20 kHz, dB | -0.13, +0.09 | From 40 Hz to 15 kHz, dB | -0.05, +0.07 | / b7 I- N* W3 T! J: N, }
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Noise level
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| Left | Right | RMS power, dB | -110.5 | -110.3 | RMS power (A-weighted), dB | -112.5 | -112.4 | Peak level, dB FS | -89.7 | -89.5 | DC offset, % | +0.0 | +0.0 |
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5 j W; B3 A! z! v4 S6 ~Dynamic range + e7 v( g" U- n) _9 q+ ]
% A6 T$ F, u: q2 U' J( x- a6 p- V | Left | Right | Dynamic range, dB | +110.4 | +110.1 | Dynamic range (A-weighted), dB | +112.3 | +112.2 | DC offset, % | +0.00 | -0.00 |
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: v. S7 P9 c; J, X; Z | Left | Right | THD, % | +0.0014 | +0.0016 | THD + Noise, % | +0.0017 | +0.0019 | THD + Noise (A-weighted), % | +0.0021 | +0.0023 | ! ~0 v0 X) {# j6 @3 E
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Intermodulation distortion
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! s I% t# x" c9 G | Left | Right | IMD + Noise, % | +0.0016 | +0.0017 | IMD + Noise (A-weighted), % | +0.0013 | +0.0014 | , ] Z! v$ N; r# |
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^# t5 e8 d2 i o. s e$ HStereo crosstalk " a3 s( {; a8 o; u. r0 W6 z8 s) d
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| Left | Right | Crosstalk at 100 Hz, dB | -108 | -107 | Crosstalk at 1000 Hz, dB | -94 | -94 | Crosstalk at 10000 Hz, dB | -74 | -74 | 6 y @( S( }, [$ k
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IMD (swept tones) 1 G( N: V8 o5 G: P' ]
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| Left | Right | IMD + Noise at 5000 Hz, | 0.0021 | 0.0022 | IMD + Noise at 10000 Hz, | 0.0023 | 0.0024 | IMD + Noise at 15000 Hz, | 0.0043 | 0.0043 |
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用的二奶机在xp下测的,因为vista测不了$ q- {! O4 k( \! E) M% V" l
是不是那个rmaa会话自己作弊了啊,开了那个会话,rmaa的电平不用调就正常了的3 A- e9 Z# R( _ W/ f; L' z
非内录,内录的话动态跑到120多去了。
; ^9 q/ Y0 ^" X但是这个112也有点变态了。 |
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