Mason Blake
The DJI Phantom 4 drone does not have the capability to record audio as it is not equipped with a built-in microphone. However, there are several workarounds to enable sound recording, such as attaching a wireless external microphone to the drone or using third-party apps that allow audio recording from the device connected to the controller.
| Characteristics | Values |
|---|---|
| Audio recording | No built-in mic, but an external mic can be attached |
| Audio sync | Third-party apps can record audio from the device connected to the controller and automatically sync it to the video |
| Audio editing | Reaper, Premier Pro, Final Cut Pro X, YouTube editor |
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What You'll Learn
- The Phantom 4 does not have built-in audio recording capabilities
- External microphones can be attached to the drone to record audio
- The rotor sound of drones can be overwhelming and drown out other sounds
- Third-party apps can be used to record audio from the device connected to the controller
- Video editing software can be used to add and synchronise audio to drone footage
The Phantom 4 does not have built-in audio recording capabilities
The DJI Phantom 4 drone does not have built-in audio recording capabilities. This is because drones are very loud, with noise levels comparable to a functioning washing machine or a loud alarm clock. The noise comes from the propellers and motors, and even if a drone had no propellers or motors, there wouldn't be much to hear when flying at high altitudes.
However, there are workarounds to record audio with the Phantom 4. One method is to attach a wireless external microphone to the drone. However, it is important to note that the microphone will predominantly capture propeller wash and wind noise. Another option is to use third-party apps that allow you to record audio from the device connected to your controller while you fly, which can then be synchronized with your video footage.
Additionally, you can use a dedicated external microphone connected to your phone to record audio. This method requires a splitter cable unless you are using a wireless microphone. Another suggestion is to use a lavalier microphone dangling about 10 to 20 feet underneath the drone to minimize buzzing noise from the propellers.
While the Phantom 4 does not have built-in audio recording capabilities, these workarounds provide options for those seeking to capture audio alongside their drone footage.
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External microphones can be attached to the drone to record audio
The Phantom 4 drone does not have built-in audio recording capabilities. However, external microphones can be attached to the drone to record audio. This can be achieved by using a suitable microphone with a phantom power supply, which provides the necessary voltage to power the microphone and ensure high-quality sound capture. Phantom power supplies are designed to deliver a steady voltage, typically 48 volts, to microphones and other audio equipment, enhancing their performance and sound quality.
To attach an external microphone to the Phantom 4 drone, users can follow these steps:
- Choose a suitable microphone: Select a condenser microphone that is compatible with phantom power. Condenser microphones require external power for operation, and phantom power supplies are designed specifically for these types of microphones.
- Connect the microphone to the phantom power supply: The phantom power supply will provide the necessary voltage to the microphone through XLR or other compatible cables. Ensure that the power supply has built-in protection circuits to safeguard against electrical surges and short circuits.
- Mount the microphone on the drone: Securely attach the microphone to the drone, ensuring it is stable and does not obstruct the drone's movement or camera view.
- Test the audio recording: Before flying the drone, test the audio quality by recording a sample clip. Adjust the microphone position or settings if necessary to achieve the desired sound.
- Synchronize audio and video: Use a clapperboard or timecode to synchronize the audio recorded by the external microphone with the video captured by the drone. This ensures that the audio and video are properly aligned during post-production.
By following these steps, users can enhance the Phantom 4 drone's capabilities by adding external audio recording. This allows for more dynamic and immersive video content, making it a valuable feature for filmmakers, content creators, and drone enthusiasts.
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The rotor sound of drones can be overwhelming and drown out other sounds
The Phantom 4 drone does not have audio recording capabilities. However, the rotor sound of drones can be overwhelming, and it can drown out other sounds. The noise generated by drones is typically between 70-90 dB, with distinct tonal peaks at blade passage frequencies and their harmonics. This noise is caused by multiple mechanisms, including tip vortex formation, blade-wake interactions, and turbulent boundary layer effects. These factors create a unique acoustic signature that varies significantly with flight conditions, making it challenging to achieve consistent noise reduction.
The distinctively loud, fluctuating, and high-pitched sound of drones has been compared to a giant buzzing insect. This noise can be particularly annoying to people, especially in quiet environments such as residential areas and parks. Research has shown that the blade angle offsets (azimuthal phasing) between different rotors play a significant role in the noise fluctuations produced by drones. When the rotors are not synchronized, the flight controller continuously varies the rotation speeds, causing the blade angle offsets to change over time and resulting in varying noise levels.
To address the issue of overwhelming rotor sound, engineers have developed various noise reduction techniques for drones. One approach is to use extendable leading-edge serrations that can deploy or retract during flight to reduce noise. Another technique involves using an onboard sound-profile engine that employs machine learning algorithms to continuously analyze flight conditions and adjust propeller speed, surface treatments, and speaker output to minimize noise. Additionally, strategic microphone arrangements can be used to capture target speech signals while monitoring rotor noise, allowing for the isolation of desired audio signals from the overwhelming propeller sounds.
While these techniques show promising results in reducing drone noise, more work is needed to address the public's concerns about the widespread use of drones in populated areas. Researchers like Dr Antonio Torija Martinez are studying the impact of rotor spacing and sound quality metrics on the annoyance of propeller noise, aiming to integrate this analysis into the early stages of the propeller design process. By optimizing the relationship between propeller blade diameters and the spacing between contra-rotating rotors, it may be possible to minimize the negative impact of drone noise on people's health and well-being.
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Third-party apps can be used to record audio from the device connected to the controller
The DJI Phantom 4 drone does not have the capability to record audio as it is not equipped with a built-in microphone. The loud noise generated by the drone's propellers and motors also makes it difficult to record audio with or around the drone.
However, third-party apps can be used to record audio from the device connected to the controller. While the specific app names are not mentioned, these apps automatically synchronize the recorded audio to the video footage.
To enhance the audio quality, an external microphone can be attached to the drone or connected to a smartphone. When attaching an external microphone directly to the drone, it is recommended to use a lavalier microphone and dangle it 10 to 20 feet underneath the drone to minimize buzzing noise from the propellers. Alternatively, a wireless external microphone can be attached, although it will predominantly capture the propeller wash and wind noise.
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Video editing software can be used to add and synchronise audio to drone footage
The DJI Phantom 4 drone does not have audio recording capabilities due to the lack of a built-in microphone. The loud noise generated by the drone's propellers and motors also makes it challenging to record audio from or around the drone. However, there are several workarounds and video editing techniques to add and synchronise audio with your drone footage.
One method is to attach an external microphone to the drone. While this will predominantly capture propeller and wind noise, you can minimise buzzing by dangling a lavalier microphone 10 to 20 feet below the drone. Alternatively, you can attach the lavalier microphone directly to the drone and process the audio by cutting certain frequencies. You can also use third-party apps that allow you to record audio from your smartphone while flying, which then automatically synchronises with your video footage.
When it comes to video editing software, you can use programmes like Reaper, a free or low-cost option with a supportive community. Other recommended programmes include Premier Pro and Final Cut Pro X, which offer advanced features like Multicam for synchronising clips. For a free option, the YouTube editor allows you to add audio tracks, but it will downgrade your video quality and has a time limit for audio length.
To synchronise your audio and video footage manually, you can use a clapperboard and watch for the sticks to clap or use timecode. iPhone clapper apps are also available, providing flexibility with or without audio. These techniques ensure that your audio and video elements align precisely, creating a seamless and engaging final product.
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Frequently asked questions
No, the Phantom 4 does not have a built-in microphone, so it cannot record sound.
Drones are very loud, so it would be hard to record audio with or without them. The noise of a drone is comparable to a functioning washing machine or a loud alarm clock.
Yes, you can attach a wireless external microphone to the drone to record audio. However, the microphone will mostly pick up propeller wash and wind noise. You can also use third-party apps to record audio from your controller while you fly and automatically sync it to your video.
You can use a clapperboard and watch for the sticks to clap or use timecode. You can also use free or low-cost video editing software like Reaper or YouTube Editor to sync your audio and video.
You can dangle a lavalier microphone about 10 to 20 feet underneath the drone to minimize buzzing noise from the propellers.
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