解決方案
在RFmx WFC Tones plugin中,選則“Auto Settings”時,File Length, Sample Rate 和Number of Samples的計算如下。
File Length
File Length =1 / resolution
其中的resolution計算為tone 頻率中最小的非零數字位置的10的冪。
例如,
Sample Rate
Sample Rate是根據下表計算的。
Maximum Tone Frequency (f)
|
Sample Rate
|
f <= 8 kHz
|
50 kHz
|
8 kHz <f <= 30 kHz
|
200 kHz
|
30 kHz <f <= 80 kHz
|
500 kHz
|
80 kHz <f <= 300 kHz
|
2 MHz
|
300 kHz <f <= 800 kHz
|
5 MHz
|
800 kHz <f <= 3 MHz
|
20 MHz
|
3 MHz <f <15 MHz
|
60 MHz
|
15 MHz <= f <= 50 MHz
|
(floor((4 * f)/1M + 0.5)) MHz
|
f> 50 MHz
|
(floor((2.5 * f)/1M + 0.5)) MHz
|
Sample Rate
Number of Samples = File Length * Sample Rate
注意:“Sample Rate”的最小值為3000。如果上述計算的“Sample Rate”小於最小值,則將其乘以整數因子,以使所得的“Number of Samples”大於或等於最小值。File Duration會相應更新。