[FAQ]If you get an error 'The ..  

[FAQ]If you get an error 'The endpoint device is already in use' at the start of recording

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This usually happens when a DAW that uses Asio4all is running (for example, FL Studio), which monopolizes the audio of the system, because other programs besides that program become unable to play or record sound.

If you use Asio4all, do not use the playback device as Asio4all in the program. If you change the device to something like "main sound driver", you can record normally.

For example, in FL Studio 12.0, go to Options-Audio Settings and set it to "Main Sound Driver" as shown below to play back.


Asio4all must be used when using DAW inevitably due to problems such as MIDI keyboard latency.In this case, use Asio4all only for work and stop the Asio4all by changing the playback device to DirectSound at the end of the recording. You need to record.


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  1. [HOWTO]oCam main screen configuration and features
  2. [HOWTO]Record your screen
  3. [HOWTO]Record only sound
  4. [HOWTO]Capture screen
  5. [HOWTO]Resizing the recording area
  6. [HOWTO]Setting codec-selecting video codec
  7. [HOWTO]Setting Codec-Selecting Video External Codec (VFW)
  8. [HOWTO]Setting codec-Setting audio quality of audio codec
  9. [HOWTO]Record microphone and system sounds
  10. [HOWTO]Game recording
  11. [HOWTO]Setting up oCam - Record - General tab
  12. [HOWTO]Setting up oCam - Record - Game Tab
  13. [HOWTO]Setting up oCam - Record - Resize
  14. [HOWTO]Setting up oCam - Sound
  15. [HOWTO]Setting up oCam - Capture
  16. [HOWTO]Setting up oCam - Animated GIF
  17. [HOWTO]Setting up oCam - Hotkeys
  18. [HOWTO]Setting Up oCam - Effect - Click Effect
  19. [HOWTO]oCam settings- Effect - Highlight effect
  20. [HOWTO]oCam settings - Effect - Cursor Size
  21. [HOWTO]Setting up oCam-Save
  22. [HOWTO]How to reduce the size of recorded video files during game recording (For NVIDIA codec)
  23. [HOWTO]Setting the frame rate mode - VFR (Variable frame rate) or CFR (Constant frame rate)
  24. [HOWTO]Frequently Asked Questions about Variable frame rate (VFR) and Constant frame rate (CFR)
  25. [HOWTO]How to reset oCam's settings
  26. [Tips]How to record the microphone and computer sound together during recording (Windows Vista, 7, 8, 10)
  27. [Tips]How to record sound when using the USB audio interface
  28. [Tips]Rename files saved when recording, recording, or capturing
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  30. [Tips]How to record what you hear while recording
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Additional tips

[FAQ]If you get an error 'The endpoint device is already in use' at the start of recording

This usually happens when a DAW that uses Asio4all is running (for example, FL Studio), which monopolizes the audio of the system, because other programs besides that program become unable to play or record sound.

If you use Asio4all, do not use the playback device as Asio4all in the program. If you change the device to something like "main sound driver", you can record normally.

For example, in FL Studio 12.0, go to Options-Audio Settings and set it to "Main Sound Driver" as shown below to play back.


Asio4all must be used when using DAW inevitably due to problems such as MIDI keyboard latency.In this case, use Asio4all only for work and stop the Asio4all by changing the playback device to DirectSound at the end of the recording. You need to record.


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