pallee

回覆 80# cocteau

只要低頻到達耳膜時個 impluse 仍然夠強
yes, the power, not the signal

pallee

Once I shut myself in an audio lab equipment testing room (< 10 dB background noise) and tested some audio clips. Most of them were irregular noise signals. I tried to use ears only to listen (no eyes and other organs, no past experience).

I was surprised that my differentiation of sound was bad. Hardly could I tell which is which.

I found out the fact. Listening (and listening experience) is much more than pure ears.

ericho2016

錯啦，你句野本身就有問題。
placebo = 本身無用, 但因為影響心情而好左，即係有用。

再講，placebo 唔等 ...
cocteau 發表於 2020-11-15 23:17

係醫學上，placebo effect係無用，藥物研究都要避開placebo effect帶來的誤導

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ericho2016

Once I shut myself in an audio lab equipment testing room (< 10 dB background noise) and tested some ...
pallee 發表於 2020-11-16 14:49

可以練，經過嚴格訓練，你就可以直接準確聽出聲音頻率，也能準確評價音響產品的頻響表現。

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cocteau

回覆  cocteau

只要低頻到達耳膜時個 impluse 仍然夠強
yes, the power, not the signal ...
pallee 發表於 2020-11-16 14:40

以我理解，所謂聽到、或者講感知到一個sound，係感知到power with the signal。
無power既signal，只係數據，唔係sound，無可能聽得到。

IanW

回復 dmarko

唔好意思

我失落左

請問 最後 正確答案在那層post?

thx

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dmarko 發表於 2020-11-16 16:06

得果 9 頁, 飛走你本人無無謂謂的 post, 大概只得 7 頁, 咁都睇唔倒, 就唔好學人上科林啦.