Call recording apps face one really common problem. You hit record, everything looks fine, but when you play it back, only your voice comes through. The other person? Either completely silent or so faint you can’t make out a single word.
This incoming voice issue affects thousands of Cube ACR users every day. Your app works. The timer runs. Files save where they should. But half the conversation just vanishes, which makes the recording pretty much worthless. The fix isn’t complicated once you know where to look.
Most people think their phone is broken or the app is faulty. Actually, it’s usually a settings mismatch between your device and how Cube ACR tries to grab audio. A few tweaks, and you’ll get crystal-clear recordings of both sides again.
Why Your Incoming Voice Disappears
Recording phone calls isn’t as simple as it sounds. Your phone routes call audio through a special channel that’s completely separate from normal sounds like music or videos. Apps like Cube ACR need specific access to tap into that channel. When something blocks that access, you end up recording only what your microphone picks up.
Think of it like this. Your phone has different audio pipes. One carries your voice out. Another brings the other person’s voice in. Cube ACR needs permission to listen to both pipes at once. If it can only hear one, your recording captures just your side.
Phone makers don’t make this easy. Samsung handles call audio one way. Xiaomi does it differently. OnePlus has its own system. Each brand adds security layers that change how recording apps can work. What records perfectly on a Samsung might fail completely on a Xiaomi.
Android updates make things trickier. Each new version tightens up security. Apps that worked great on Android 10 can struggle on Android 12 or 13. Your phone protects your privacy, which is good. But sometimes that protection accidentally stops apps you actually want to use.
Cube ACR Not Recording Incoming Voice: Likely Causes
Several technical factors can prevent Cube ACR from capturing incoming audio. Understanding these causes helps you target the right fix for your specific situation.
1. Wrong Audio Source Selection
Cube ACR offers multiple audio source options in its settings. Each source taps into a different audio channel on your device. Some sources capture media audio, others focus on voice calls, and some attempt to grab system-wide audio. If you’ve selected an audio source that doesn’t have access to the call pathway, incoming voice won’t make it into your recordings.
Your phone might support certain audio sources while blocking others completely. The “Voice Call” source works on some devices but fails on others. The “Media” source might capture app sounds but miss actual call audio entirely.
Finding the right audio source often requires testing different options until one works. What complicates this further is that the best audio source can change after a system update. An option that worked last month might stop functioning after your phone installs new security patches.
2. Missing or Revoked Permissions
Recording apps need several permissions to function properly. Cube ACR requires access to your microphone, phone calls, and storage. But here’s what catches people off guard: granting these permissions during installation doesn’t guarantee they stay active. Android can revoke permissions if it detects unusual behavior or if you accidentally deny them when a prompt appears.
Your phone’s permission system includes visible permissions and hidden ones. The visible ones appear in your settings menu where you can toggle them on and off. Hidden permissions get granted through developer options or system-level access, and these can reset unexpectedly.
3. Manufacturer Audio Restrictions
Phone manufacturers implement their own audio policies. Xiaomi phones running MIUI have strict call recording limitations. Samsung devices on One UI add extra security layers. OnePlus, Oppo, and Realme phones share similar ColorOS-based restrictions. These manufacturer modifications can block call recording entirely, regardless of what permissions you grant.
Some brands disable call recording in certain regions due to legal requirements. A phone sold in Europe might have recording capabilities locked down compared to the same model sold in Asia. Your device firmware determines what recording features are accessible, and you might not realize your specific model has built-in limitations.
These restrictions often hide in the background. Your phone doesn’t display a message saying “call recording blocked by manufacturer.” Instead, apps like Cube ACR appear to work normally but fail to capture incoming audio. The app records something, which makes you think it’s working, but the critical component stays missing.
4. Outdated App Version
Cube ACR receives regular updates to adapt to new Android versions and phone models. An outdated version might lack compatibility fixes for your current system. Developers constantly patch bugs related to audio capture, and running an old version means you’re missing these improvements.
Older versions might use deprecated Android APIs that no longer function properly. Google phases out certain audio access methods with each Android release. If your Cube ACR version hasn’t updated to use newer APIs, it can’t tap into the audio streams correctly.
Some updates specifically address incoming voice issues for particular phone brands. A fix for Samsung devices might arrive in version 2.3.5, but if you’re still running 2.3.2, you won’t benefit from that patch. Your app might work perfectly for outgoing audio while struggling with incoming audio simply because it’s missing brand-specific fixes.
5. Conflicting Audio Apps
Other apps running on your phone might interfere with Cube ACR’s audio access. Music players, voice changers, equalizers, and even other recording apps can monopolize audio channels. When multiple apps try to access the same audio source simultaneously, Android gives priority to one while blocking the others.
Some apps keep audio permissions active even when you’re not actively using them. That voice assistant you tried last week might still be running background processes that claim audio resources. Game apps with voice chat features can maintain audio hooks that interfere with call recording.
Battery optimization apps sometimes restrict background audio access to save power. If your phone’s battery saver treats Cube ACR as a resource hog, it might limit the app’s ability to capture audio properly. The app stays functional enough to create recording files, but the actual audio capture gets throttled.
Cube ACR Not Recording Incoming Voice: DIY Fixes
Getting your incoming voice back requires systematic troubleshooting. These fixes address the most common causes and work across different phone brands.
1. Change Your Audio Source
Open Cube ACR and head straight to the settings menu. Look for “Recording Settings” or “Audio Settings” depending on your app version. You’ll find an option labeled “Audio Source” with a dropdown menu containing several choices.
Try each audio source one by one. Start with “Voice Call” if it’s available. Make a test call after selecting it and record a brief conversation. Check the playback immediately. If incoming voice is still missing, return to settings and switch to “Voice Communication.” Test again with another call.
Continue this process through all available sources. Options like “Voice Recognition,” “Camcorder,” and “Default” might seem unusual for call recording, but they tap into different audio pathways. One of them might have the access your phone allows. Some devices respond best to “OpenSL ES” or “MediaRecorder API” if those advanced options appear in your list. The right source varies by device, so exhaustive testing is your best approach here.
2. Verify and Refresh Permissions
Go to your phone’s Settings app and find the Apps or Applications section. Locate Cube ACR in your app list and tap it. You’ll see a Permissions option that shows everything the app can access.
Check that Microphone, Phone, and Storage permissions are all enabled. If any show as denied, toggle them on immediately. But here’s the important part: even if they all show as enabled, try this refresh trick. Disable each permission, wait about ten seconds, then re-enable it. This forces your system to re-establish the permission grants.
Some phones hide additional permissions under “Special Access” or “Advanced Permissions.” Look for options like “Modify System Settings,” “Display over Other Apps,” or “Background Activity.” Enable these if they’re present. Restart Cube ACR after adjusting permissions to ensure changes take effect properly.
3. Enable Developer Options and Disable Audio Restrictions
Your phone has hidden settings that can unlock better recording capabilities. Go to Settings, then About Phone. Find “Build Number” and tap it seven times rapidly. Your phone will display a message saying “You are now a developer.”
Return to your main Settings menu. A new “Developer Options” section should appear, usually under System or Additional Settings. Open it and scroll carefully through the options. Look for anything mentioning “Disable absolute volume,” audio routing, or audio policy. Each phone brand names these differently.
Find any setting related to audio restrictions or call recording limits. Samsung phones might show “Allow call recording.” Xiaomi devices could have “Audio focus management.” Toggle these settings to permit broader audio access. Some phones include an option to “Force allow apps to access call audio.” Enable it if present.
After making these changes, reboot your phone completely. Developer settings sometimes require a full restart to activate properly. Test Cube ACR with a new recording to see if incoming voice now captures correctly.
4. Update Cube ACR
Open the Google Play Store and search for Cube ACR. If an update is available, you’ll see an “Update” button instead of “Open.” Tap it and let the new version install completely.
Updates might take a minute or two depending on your connection. Once finished, open Cube ACR and check if any new setup prompts appear. Updated versions sometimes request fresh permission grants or ask you to reconfigure audio settings. Follow any on-screen instructions carefully.
If you’ve been using a modified or unofficial version of Cube ACR downloaded from third-party sites, uninstall it completely. Download only the official version from Google Play Store. Unofficial versions lack proper updates and might contain outdated code that can’t handle modern Android audio systems.
5. Clear App Cache and Data
Head back to Settings and find Cube ACR in your app list. Tap on Storage or Storage Usage. You’ll see two options: “Clear Cache” and “Clear Data.” Start by tapping Clear Cache. This removes temporary files without deleting your recordings or settings.
Launch Cube ACR and test a recording. If incoming voice still doesn’t work, return to the Storage settings. This time, tap “Clear Data.” Be aware this resets the app completely. You’ll lose your settings configuration, but your saved recordings typically remain safe in their storage folder.
After clearing data, open Cube ACR as if it’s a fresh installation. Grant all permissions when prompted. Configure your audio source settings again, trying different options as mentioned earlier. Sometimes a clean slate helps the app establish proper audio connections your phone will accept.
6. Adjust Phone-Specific Settings
Different manufacturers require unique approaches. For Samsung phones, open Settings and search for “Call Background Recording.” Enable it if found. Samsung devices often need this specific toggle activated before recording apps work properly.
Xiaomi users should check MIUI’s Security app. Open it, go to Permissions, then find Call Recording. Make sure Cube ACR has permission granted here. MIUI maintains separate permission controls that override standard Android settings.
OnePlus, Oppo, and Realme users need to check “Phone Manager” or “System Manager” apps. These contain permission controls that can block audio access. Look for “Privacy Permissions” sections within these apps and ensure Cube ACR isn’t restricted.
7. Contact a Professional Technician
Sometimes the issue runs deeper than simple settings adjustments. If you’ve tried everything here and incoming voice still won’t record, your phone might have hardware-level audio routing problems. Certain devices have audio chipsets that fundamentally don’t support call recording apps, regardless of software tweaks.
A qualified phone technician can examine your device’s audio configuration at the system level. They have access to diagnostic tools that reveal whether your specific model has manufacturer blocks that can’t be bypassed through normal settings. Professional help becomes necessary when software solutions hit dead ends.
Wrapping Up
Recording calls should be straightforward, but modern phone security creates obstacles that apps like Cube ACR must work around. Your incoming voice issue usually stems from audio source mismatches, permission problems, or manufacturer restrictions rather than actual app failures.
Most people fix this by changing audio sources or adjusting hidden phone settings. The key is systematic testing since every device handles recording differently. Your solution might be as simple as toggling one setting or as involved as enabling developer options. Either way, your recordings can capture both sides of the conversation clearly once you find the right configuration for your specific phone.