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原帖由 shiny 于 2008-9-21 00:48 发表 ![]()
声音还原指标是你定的？哥就是吃音乐这碗饭的，而且天生对音质就特别敏感~
不是我定的
我前面贴的帖子写了
是用这个仪器测的
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How we tested
Quantitative audio performance tests were performed with an Audio Precision ATS-2A audio analyzer using control software and QuickTest 1.01 for personal media players. We connected each player to the instrument in parallel with a 30-ohm load, to simulate earbud-style headphones. All devices were tested at an output level for -9.5dBV to 11.0dBV (approximately 300 mVrms). For each device, we report frequency response, distortion, and noise in the presence of signal. The QuickTest application tests a device by playing back a complex stimulus signal that contains component tones at approximately 20Hz, 1kHz, 10kHz, and 20kHz. Frequency response is a measurement of the deviation from flat of the response across the audio band; lower numbers are better. Distortion is a measurement of the total distortion and noise relative to the output level; higher absolute numbers are better. Noise in the presence of signal is a measurement of the noise relative to the output level; higher absolute numbers are better. |
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I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.
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IP卡
狗仔卡
发表于 2008-9-21 00:42
显身卡
有兴趣听下你的器材。。
