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第一,测试前熟悉mp3规范;
• All standard bit rates are supported, from 32Kbps through 320Kbps. Support for all MP3 sample rates:
o MP3 Version 1 – 32KHz, 44.1KHz, 48KHz
o MP3 Version 2 – 16KHz, 22.05KHz, 24KHz
o MP3 Version 2.5 – 8KHz, 11.025KHz and 12KHz
• Limited variable bit rate support – seek and playback length might not be accurate.
• Support for the following stereo modes: Joint stereo, Mono, Stereo and Middle – Sides (known as M/S).
• Non-Standard clips support: Clips with up to 1MB of non-playable data (anywhere). This also includes defected clips.
• ID3 tags supported.
第二,准备样例文件,配合cooledit、pc-sync软件查看样例文件属性的细节
第三,其余则按需求来进行测试。尤其针对键盘播放模式有一些易用性上的考虑
第四,声音品质方面主要还是主观把握。itu针对voip声音品质都这么建议的
第五,...(yaya0226进行补充)... |
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