MiniDSP UMIK-1 配合 REW 做 Room Correction

johnme

johnme 發表於 2019-6-13 12:50

如果你睇唔慣3-D plot, 你可以用下面兩種劃法.

方法(1):

This is a waterfall plot generated from my measurement data file.

The vertical axis is SPL (sound ...

This is a spectrogram.

It is simply a view from the top of the waterfall plot.

johnme

johnme 發表於 2019-6-13 12:51
This is a spectrogram.

It is simply a view from the top of the waterfall plot.

方法(2):

This is a RT60 plot.  It is simply a waterfall plot with the SPL axis removed.

It tells you how speed of sound at different frequency fade away.

You can see that the low frequency takes a very long time to decay.

hiukong

johnme 發表於 2019-6-13 12:50
This is a waterfall plot generated from my measurement data file.

The vertical axis is SPL (sound ...

謝謝師兄，非常清楚。我試下開返另一個當日早少少錄低的紀錄，唔駛按generate 都出到喎

johnme

johnme 發表於 2019-6-13 12:54
This is a RT60 plot.  It is simply a waterfall plot with the SPL axis removed.

It tells you how s ...

如果師兄有心捉蟲,
可以再PLOT多D圖.

小弟間屋聲音反射嚴重.

johnme

hiukong 發表於 2019-6-13 13:01
謝謝師兄，非常清楚。我試下開返另一個當日早少少錄低的紀錄，唔駛按generate 都出到喎

...

你SET返右手邊個"LIMIT":
FREQUENCY: 20 - 20000
SPL: MAX 100
SPL: MIN 40

應該張圖會好睇D