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Lesson 5

These 谐(泛音) are whole-number 倍数 of the 基(础) 频率

we 结论 that the 三角 波 certainly has its own 清晰(独特) 品质 The 特殊性 of its 声波 is all wrapped up in its 谐/泛音 结构
The 谐/泛音 content of a 信号 is the key to its 清晰(独特) 声波 品质

A 1000-Hz (平)方 波 has its own 清晰(独特) 声波 All of its 谐(泛音) 出现 at the same odd 倍数 of the 基(础) as with the 三角 波 but their magnitudes and 时间 关系 are different

There is a richness to the violin 音 which the 正弦 波 certainly does 不 have The violin 音 is rich in 泛音 As we deal with 樂/乐 音 it is fitting that we switch over to the musician's 术语 Instead of 谐(泛音) the 术语 泛音 or 分音 should be used

泛音 dominate the violin 声波 Its rich 音 品质 depends entirely on the 泛音 模式
Each 乐器 of the 乐队 has its own 泛音 模式 which gives it its characteristic 声波
To achieve 高 品质 in the 錄/录 and 再现 of 声波 it is necessary to preserve all the 频率 components of that 声波 in their 原始/原创 形(曲)式 限制 of the 频率 带/乐队 or 不规则 in 频率 响应/反应 among other things 影响 声波 品质

Some 樂/乐 乐器 have 泛音 that are 不 whole-number 倍数 of
the 基(础) and thus cannot be called 谐(泛音) For such 乐器 the 一般 词 泛音 must be used

Bells produce a wild 混合 of 泛音 and the 基(础) may 不 even be 识别

The 泛音 of drums are also 不 协和 相关 to the 基(础) but they are responsible for the 独特 rich 鼓 声波

Summarizing we have learned that preserving the integrity of the 基(础) and 泛音 模式 of our 信号 preserves the 品质 of the 信号 and this is what 高 fidelity is all about