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Do not download ARMv7 or x86 versions for a modern phone. They will either fail to install or force your CPU into 32-bit emulation mode, killing performance.
Once selected, MX Player will display a message: "Restarting application to load new codec." The app will close and reopen automatically.
Play the video that previously had no sound. The EAC3, AC3, or DTS audio track should now stream perfectly through your speakers or headphones. Troubleshooting Common Errors "Can't find custom codec for this version" Mx Player Custom Codec 1.49 0 Armv8 Neon
This happens because licensing issues forced MX Player to remove native support for certain audio codecs like DTS, Dolby Digital (AC3), and EAC3.
| Format | Typical Use Case | Benefit of Custom Codec | | :--- | :--- | :--- | | | Dolby Digital in Blu-ray rips, streaming captures | Restores center channel dialogue and surround effects | | DTS (Core) | DTS 5.1 in 1080p/4K MKV files | Hardware-accelerated decoding, no audio stutter | | DTS-HD MA | Lossless audio on 4K remuxes | High bitrate support (up to 24.5 Mbps) | | MLP | DVD-Audio and some Blu-ray concerts | Preserves high-resolution lossless audio | | TrueHD | Atmos-enabled MKV/MP4 files | Decodes the lossless core for non-Atmos setups | | AAC 5.1 | Multichannel AAC from web-dl | Correct channel mapping and gain control | Do not download ARMv7 or x86 versions for a modern phone
Once downloaded, injecting the file into MX Player takes less than a minute.
Version numbers are critical. Codecs are not universally backward or forward compatible. Version is specifically tailored to match MX Player versions released around late 2024 to early 2025. Using the wrong codec version (e.g., 1.48.0 with the 1.49.0 app) can lead to crashes, audio sync issues, or the codec simply not being recognized. Play the video that previously had no sound
Search for trusted development forums like or the official GitHub repositories tracking MX Player AIO (All-in-One) codec packs.