You recorded a game, a tutorial, or a Zoom class with oCam, hit play, and there is no sound at all. Or the game audio is there but your voice is not. Or your voice is buried under the background sound.
oCam is a Windows screen recorder made by OhSoft, a Korean developer, and it is popular because it is simple and free for non-commercial personal use.
OhSoft's buy page says the free and paid versions have the same features, so a missing audio track is a settings and Windows device question rather than a version issue.
This guide groups the steps from OhSoft's official oCam help pages and Microsoft's Windows sound support articles, as of November 12, 2026. Menu names follow oCam's English interface and may move slightly between versions. If you are new to the basics such as choosing a recording area or save folder, start with how to use oCam.
Symptoms, likely causes, and where to look (OhSoft oCam help, as of November 12, 2026)
| Symptom | Likely cause | Where to look first |
|---|---|---|
| Video has no sound at all | "Record System Audio" is unchecked | Sound button on oCam's main screen, check "Record System Audio" |
| Game audio is there, your voice is not | Mic default is "No Microphone Recording" | Pick your microphone from the Sound button list |
| Your mic is not in the Sound list | Device is disabled in Windows | Control Panel > Sound > Recording tab, right click, Show Disabled Devices, Enable |
| WASRecord 0x80070005 error when recording starts | Windows microphone permission is off | Settings > Privacy & security > Microphone |
| "Failed to initialize sound library" error | PC cannot play sound at all | Check speakers or headset, update the sound driver |
| Voice too quiet or drowned out by the game | Low mic level, loud app audio | Microphone Properties > Levels, Volume Mixer per app |
| Mic only plays from one speaker | Audio interface sends a mono input | Tools > Options > Sound > Microphone Settings > Input Source |
Bottom line: first decide whether all audio, only the mic, or only the volume is the problem
oCam audio problems split cleanly into three groups. If the video is completely silent, the usual cause is that "Record System Audio" got unchecked under the Sound button, or that Windows itself has no working playback device.
If game or video audio is there but your voice is missing, the usual cause is oCam's default mic setting, "No Microphone Recording", followed by a disabled device or blocked Windows microphone permission.
If audio is recorded but too quiet, or your mic only comes out of one speaker, look at the Windows mic level, per app volume, and the input source in oCam's advanced Sound settings. Change one thing at a time and confirm with a ten second test recording. If audio also goes missing in other recorders such as OBS, start with the output device checks in fixing no sound in game recordings.
Step by step: fixing oCam when it is not recording audio
- 1Run a ten second test to sort the symptomPlay a YouTube video, talk over it, and record for ten seconds. Then check whether the video audio, your voice, or both are missing or quiet. That tells you which row of the table above to follow.
- 2Check system audio and the mic under the Sound buttonClick the Sound button on oCam's main screen to open the sound popup. "Record System Audio" must be checked to capture game and video sound. To capture your voice, choose your microphone by name instead of "No Microphone Recording". oCam applies the change right away.
- 3Bring back a microphone that is missing from the listIf your mic does not show up, open Control Panel > Sound > Recording, right click an empty area, choose Show Disabled Devices, then right click your mic and choose Enable. With an audio interface, the mic may appear as Line In instead. Go back to oCam and reopen the Sound list.
- 4Handle error messages with permissions and playback checksWASRecord 0x80070005 appears when Windows blocks microphone access. On Windows 11, go to Settings > Privacy & security > Microphone, turn on Microphone access, Let apps access your microphone, and Let desktop apps access your microphone, then restart oCam. "Failed to initialize sound library" is likely when the PC cannot play sound, so confirm your speakers work and update the sound driver.
- 5Fix a quiet voice with mic level and per app volumeIn Control Panel > Sound > Recording, double click your mic, raise Microphone Volume on the Levels tab, and enable Microphone Boost if needed. If the game or lecture is louder than your voice, right click the speaker icon on the taskbar and lower only that app in Volume Mixer. OhSoft notes that the master Windows volume does not change the recorded level.
- 6For Zoom and online classes, match the output deviceIf a Zoom recording is missing the host's voice, make sure the speaker selected in Zoom's audio settings is the same device Windows is playing sound through. If you plug in a headset or switch to Bluetooth earbuds mid session, settle on the device and start a fresh recording. Before recording a class or meeting, check participant consent and your school or company rules.
Before you record again
- Under the Sound button, confirm "Record System Audio" is checked and the right microphone is selected.
- From the taskbar speaker icon, confirm the active output device is the headset or speakers you actually use.
- Using a Bluetooth headset mic can switch the headset into a hands free calling mode with thinner, quieter sound. A separate mic avoids that if quality matters.
- If only your voice keeps going missing, continue with the input device and permission checks in mic audio not recording.
- To capture Discord voices too, match Discord's output device to your Windows output, as covered in recording Discord call audio.
Recording games? Let the whole match record itself
oCam is handy when you want to pick a screen region and record a tutorial or class. If you mostly record games, there is a game focused alternative to pressing record and checking audio settings every time.
DOR is a free Windows game recording app: launch a supported game and it detects it automatically, records the whole match, and collects recordings in My Clips inside the app. Game sound and your microphone are captured together on one track.
In League of Legends it also saves kills, multikills, and objectives as automatic highlight clips, and replay and spectator recording is on by default, so playing back a .rofl replay records that too. For a fair look at when each tool fits, see oCam and GomCam alternatives, and for League support details see the League of Legends page.
