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虽然频率和响度都会影响音调,但归根结底音调是描述对音高的主观感知的。
至于响度在感知过程中的角色,特摘取一段维基百科:
Pitch depends to a lesser degree on the sound pressure level (loudness, volume) of the tone, especially at frequencies below 1,000 Hz and above 2,000 Hz. The pitch of lower tones gets lower as sound pressure increases. For instance, a tone of 200 Hz that is very loud seems one semitone lower in pitch than if it is just barely audible. Above 2,000 Hz, the pitch gets higher as the sound gets louder.[12] These results were obtained in the pioneering works by S.Stevens [13] and W.Snow [14]. Later investigations, i.e. by A.Cohen, had shown that in most cases the apparent pitch shifts were not significantly different from pitch‐matching errors. When averaged, the remaining shifts followed the directions of Stevens' curves but were small (2% or less by frequency, i.e. not more than a semitone)[15]
矛盾分主次的老哥。 |
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