板载声卡对比？

Question

我的主板集成声卡是ALC888S的，而我的同学主板声卡集成是ALC889A 的。
他说比数据 资料就知道~ 比我的ALC888S听起音乐来 肯定音质要很好多。
想请教下，ALC889A真的比ALC888S，听起来明显声音好呀？或者听起来有点明显呢？ 请教客观详细解答 评价

Answer 1

ALC1200是ALC888的加强版(可能就是ALC888S-VC),而ALC889A是ALC885的加强版.

下面是ALC889A和ALC1200的RMAA测试数据,ALC889A比ALC1200好多了.当然只是数据,除非你是发烧级的耳朵,否则正常使用中根本分不出明显的好坏的.

参数

Testing device Realtek HD Audio output
Sampling mode 16-bit, 44 kHz
Interface DirectSound
Testing chain External loopback (line-out - line-in)
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -1.4 dB / -1.8 dB -7.5 dB / -7.7 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity inverted/inverted

Frequency response: 频率响应

ALC1200 ALC889A

From 20 Hz to 20 kHz, dB -3.05, +1.56 From 20 Hz to 20 kHz, dB -0.78, +0.01
From 40 Hz to 15 kHz, dB -0.05, +0.01 From 40 Hz to 15 kHz, dB -0.05, +0.01

Noise level：噪声级别

ALC1200 ALC889A

Left Right Left Right
RMS power, dB -65.2 -67.9 RMS power, dB -83.0 -83.3
RMS power (A-weighted), dB -63.8 -66.6 RMS power (A-weighted), dB -84.4 -84.8
Peak level, dB FS -48.8 -50.9 Peak level, dB FS -68.9 -70.8
DC offset, % -0.1 -0.1 DC offset, % -0.0 -0.0

Dynamic range：动态范围

ALC1200 ALC889A

Left Right Left Right
Dynamic range, dB +65.3 +68.0 Dynamic range, dB +82.9 +83.6
Dynamic range (A-weighted), dB +63.9 +66.7 Dynamic range (A-weighted), dB +83.6 +84.3
DC offset, % -0.00 -0.00 DC offset, % -0.01 -0.01

THD：总谐波失真

ALC1200 ALC889A

Left Right Left Right
THD, % +27.4457 +26.1968 THD, % +0.0053 +0.0058
THD + Noise, % +27.4467 +26.1974 THD + Noise, % +0.0148 +0.0146
THD + Noise (A-weighted), % +34.2072 +33.2707 THD + Noise (A-weighted), % +0.0133 +0.0131

IMD：互调失真

ALC1200 ALC889A

Left Right Left Right
IMD + Noise, % +29.3724 +27.7378 IMD + Noise, % +0.0218 +0.0214
IMD + Noise (A-weighted), % +20.6773 +19.3464 IMD + Noise (A-weighted), % +0.0191 +0.0185

Stereo crosstalk：立体声分离度

ALC1200 ALC889A

Left Right Left Right
Crosstalk at 100 Hz, dB -68 -64 Crosstalk at 100 Hz, dB -93 -86
Crosstalk at 1000 Hz, dB -62 -66 Crosstalk at 1000 Hz, dB -89 -86
Crosstalk at 10000 Hz, dB -45 -55 Crosstalk at 10000 Hz, dB -78 -78

IMD (swept tones)：互调失真（扫频信号）

ALC1200 ALC889A

Left Right Left Right
IMD + Noise at 5000 Hz, 36.5710 34.1460 IMD + Noise at 5000 Hz, 0.0351 0.0347
IMD + Noise at 10000 Hz, 28.8751 26.1351 IMD + Noise at 10000 Hz, 0.0806 0.0810
IMD + Noise at 15000 Hz, 27.8932 25.6445 IMD + Noise at 15000 Hz, 0.1633 0.1633

解释:

Frequency response:频率响应 单位dB，越逼近0dB越好
Noise level:噪声级别 单位dB，分贝数越低越好
Dynamic range:动态范围 单位dB，分贝数越高动态范围越大
THD:总谐波失真 单位%，越小越好
IMD:互调失真 单位%，越小越好
Stereo crosstalk:立体声分离度 单位dB，分贝数越低越好
IMD (swept tones):互调失真（扫频信号） 理想值为0

总评:

ALC1200 ALC889A

Frequency response (from 40 Hz to 15 kHz), dB +1.56, -2.01 Average +0.01, -0.05 Excellent
Noise level, dB (A) -65.2 Average -84.6 Good
Dynamic range, dB (A) 65.3 Average 83.6 Good
THD, % 26.821 Very poor 0.0055 Very good
THD + Noise, dB (A) -9.4 Very poor -77.6 Average
IMD + Noise, % 28.555 Very poor 0.022 Good
Stereo crosstalk, dB -65.1 Good -88.8 Excellent
IMD at 10 kHz, % 29.877 Very poor 0.093 Good
General performance Poor Very Good