Bật Chế Độ

Create use Audacity:
• Generate→Chirp…
- Start
Frequency (Hz): 300
Amplitude: 0.5
- End
Frequency (Hz): 800
Amplitude: 0.5
Interpolate: Log
Duration: 00h 00m 1.000s

- Effect→Change Speed…
Speed Multiplier: 2.00
Percent Change 100.0

- Tracks→Add New→Mono Track

• Generate→Tone… (in new mono track)
Wave form: Saw
Frequency: 100 Hz
Amplitude 0.5
Duration: 1.000s

- Make Stereo Track

• Generate→Silence (at end)
Duration: 00h 00m 0.200s

- Select stereo track

• Effect→Vocoder…
Distance: 1
Output choice: both channels
Number vocoder bands: 240
Amplitude of original audio (percent): 100
Amplitude of white noise (percent): 0.0
Amplitude of Radar Needles (percent): 0.0
Frequency of Radar Needles (Hz): 1.0