If you like messing around with music on your mobile phone, you've probably wanted to at some point. remove the vocals from a song to keep only the instrumental track Or, conversely, isolate the voice for analysis or remixing. What used to be the domain of recording studios and complicated software can now be done in minutes without a powerful computer.
In the following lines you will see How to separate the vocal track and the instrumental track of any song directly from your phoneWe'll explore the technology behind this process, which formats work best, and how to get the most out of an app like Moises, a leading tool in this field. We'll delve into it all, but in a friendly and practical way, so you can start applying it right away.
What does it mean to separate the vocals from the instrumental in a song?
When we talk about separate the voice from the music We're referring to an audio process that attempts to isolate the vocals from the rest of the instruments, or even eliminate them altogether to obtain a purely instrumental version. This technique is the foundation of many karaoke applications, DJ remixes, musicians' practice sessions, and detailed analysis of musical arrangements.
In a typical stereo mix, The lead vocal is usually placed centered between the two channelsWhile many instruments are distributed more to the left or right. This spatial distribution is key to differentiating between voice and accompaniment, both with classical methods and with modern systems based on artificial intelligence.
For producers, musicians, and content creators, having an isolated vocal track or a clean instrumental means to have perfect raw material for remixing, sampling, practicing or adding sound to videosIn the field of video, for example, removing a voice or a specific dialogue can help prioritize the visual message or replace the voiceover without having to redo the entire mix.
This entire separation process is not trivial: the frequencies of the voice overlap with those of many instruments, and furthermore, Commercial blends are usually highly processed (compression, effects, reverbs…). That's why solutions have emerged that combine traditional audio engineering with advanced machine learning algorithms.
How voice elimination or isolation technically works
To understand why an app can Remove or isolate the vocals from a song using your mobile phoneIt is worth reviewing the main techniques used: phase analysis, frequency filtering, and advanced signal processing with AI.
One of the classic strategies is the phase analysis between the two stereo channelsMany productions place the vocals right in the center, so they reach both the left and right channels equally. If we invert the phase of one of the channels and mix it with the other, some of what's in the center tends to cancel out, thus reducing the vocal presence in the final mix.
In addition to the staged gameplay, the world of audio has traditionally made use of frequency filtering through equalizationThe human voice is typically concentrated between approximately 300 Hz and 3 kHz. Attenuating this range allows for more space for instruments, although the result is not usually as clean as with modern techniques, because many instruments also operate within this frequency range.
The next level is signal processing supported by machine learning algorithmsInstead of applying fixed rules, neural networks are trained with huge collections of pre-separated tracks to learn to distinguish patterns of vocals, drums, bass, piano, strings, and other elements. These models are able to identify and extract each component even when they share frequencies or are heavily mixed.
Thanks to this approach, current applications can offer a much more precise audio separation, with fewer artifacts and higher quality both in the vocal and instrumental tracks. This is what makes the difference between a simple karaoke trick and a truly useful tool for more serious musical work.
The technology that Moses uses to separate tracks
Moses has become one of the most popular apps because it combines a very powerful AI separation engine with a simple interface, designed so that anyone can use it from their mobile phone without needing advanced technical knowledge.
The heart of the application is a series of neural networks trained with large audio databasesIn these exercises, songs have been used that are already separated into tracks (vocals, bass, drums, etc.). With this training, the system learns to recognize very complex patterns and identify which part of the audio signal corresponds to each sound source.
One of its most striking features is the separation in near real timeYou can upload a track from your mobile phone and, in a matter of seconds or a few minutes, have the tracks split up to sing along to (with applications like Voloco), practice an instrument or experiment with new mixes without having to wait for long rendering processes.
The app also allows custom configurations in the separationDepending on the plan, you can separate just the vocals and instruments, or access more specific tracks like drums, bass, piano, or strings. Additionally, you can adjust the levels of each track with sliders, select which parts you want or don't want, or completely mute the vocals or instruments.
Another strong point is its compatibility with multiple audio and video formatsFrom compressed MP3 or M4A files to lossless formats like WAV or FLAC, and including MP4 or MOV video files, the platform is able to process them all in the cloud, then download the final result to the device.
Why Moses' separation quality makes all the difference
Unlike other voice eliminators that offer somewhat hollow or noise-filled results, Moises opts for high-fidelity separation models They try to preserve the original character of the mix as much as possible. This is noticeable both in the instrumental track and in the isolated vocals.
The app's AI algorithms are designed to minimize audio artifacts These are common issues that arise in more rudimentary separations: poorly cut reverb tails, metallic sounds, or filtered instrument snippets. While not perfect (no system is 100%), the result is much more natural and usable.
For those who need the highest quality, the premium plans allow Export in lossless WAV formatIdeal for taking tracks to a DAW (such as Ableton, Logic or Cubase) and continuing to work on professional mixes, masters or remixes without degrading the audio.
Furthermore, all processing is done in the cloud, which means that You don't depend on the power of your mobile phoneEven with a modest smartphone, you can obtain complex separations because all the heavy calculation is done on remote servers optimized for this type of task.
This combination of clean results, fast processing, and lack of powerful technical requirements makes it Moses is especially appealing to musicians, content creators, and fans who only have their mobile phone at hand but want a decent finish.
Step by step: separating vocals and instrumentals in Moses from your mobile phone
If you would like to complete the entire process directly from your phoneMoises' mobile app makes it very easy, both on Android and iOS. The general workflow is based on downloading and uploading your song, choosing how you want to split it, and finally, adjusting and exporting.
The first is Download and install Moises from the official storeOn Android, simply go to Google Play and search for “Moises App”; on iPhone or iPad, you'll need to do so from the App Store. Once installed, open it and you'll see a fairly intuitive interface, designed to get you straight to the point.
In the next step you will have to create an account or log inRegistration is quick and allows you to sync your projects between mobile and web/desktop versions. If you already have an account from using Moises on another device, simply enter your credentials and you're all set.
Once logged in, you can import the song you want to processFrom within the app itself, you'll typically find a button to add a new topic or project. From there, you'll select a file stored on your mobile device or even on compatible cloud services. The file will then be uploaded to Moises' servers to begin the analysis.
Right after you upload it, the app will ask you What type of separation do you want to apply?A common option is to divide the tracks into "Vocals" and "Instrumental," although higher-tier plans allow you to separate even more tracks (lead vocals, backing vocals, drums, bass, etc.). Once you've chosen the mode, simply confirm for the system to begin processing.
In a few moments, the AI will have separated the track into the selected elementsWhen you enter the project, you'll see sliders for each part: vocals, instruments, drums, bass, etc., depending on your selections. Lowering the "Vocals" slider to zero gives you an instrumental version; muting the instruments lets you hear only the vocals.
When you have the perfect balance, it's time to export your resultFrom the corresponding menu (usually with an icon at the top), you choose the Export option and select whether you want to download the tracks separately or a final, already adjusted mix, and in what format (MP3 or M4A in the basic plans, with WAV available in higher desktop plans).
Finally, the application will generate the files and the It will save them to your device or allow you to share them directly. via the usual channels (messaging, email, cloud storage, etc.). In a matter of minutes you'll have created your instrumental track, your isolated vocal track, or any combination you're interested in, without leaving your mobile phone.
Using Moses in web and desktop versions
Although mobile phones are often the most convenient option for many users, the Moses web and desktop version It offers a complementary experience, ideal if you work with a larger number of tracks or longer sessions from your computer.
To use it, you just have to Enter the official Moses website From your browser. From there, you can log in with the same account you use on your mobile device, so that projects are synchronized and you can continue work started on a different device.
The song is uploaded by pressing the button for create a new project or add a track and selecting the file from your hard drive or a cloud storage service. Once uploaded, the system will ask you, just like on your mobile device, how you want to split the audio.
Typically, one of the most used options is "Vocals, Instrumental," but users with Premium or Pro plans can separate into more elements such as background voices or other specific instrumentsAfter choosing the separation mode and confirming, the file is sent to be processed by the AI.
When the separation is complete, the desktop interface displays independent volume and mute controls for each trackYou can lower the vocals, mute the instruments, or play with the levels to create new mixes. It works very similarly to the mobile app, but with more on-screen workspace.
When you're finished, all that's left is for you to do. export the tracks or the single mix From the export button. On desktop, you can choose between compressed formats like MP3 or M4A, and, with paid plans, high-quality formats like WAV. The tracks are downloaded to your computer, ready to use in your favorite audio editor or to share.
Moses' plans: Free, Premium, and Pro
Moses structures his offer in three main plans: Free, Premium and Prodesigned to cover everyone from the casual user to the professional who needs advanced features and priority processing times.
El free plan It allows you to create basic splits into two tracks (vocals and instrumental) or four (vocals, drums, bass, and a generic "other" category). At this level, you can upload up to five songs per month, with a maximum duration of five minutes per file, and download the results in formats such as MP3 or M4A, sufficient for everyday use.
El Premium plan It represents a significant leap in possibilities. Here, you can separate the mix into up to five distinct tracks: vocals (including backing vocals), drums, bass, piano, and strings, offering very fine control over the mix. Furthermore, the rises become unlimited in number (with a longer maximum duration per song, around 20 minutes) and processing is usually faster, with access to WAV downloads from the web/desktop version.
Finally, the Pro plan It's designed for those who need the highest quality and flexibility. It includes everything in the Premium range and adds Hi-Fi separation models for even greater definition and fewer artifacts. It also offers a VST plugin for direct integration with digital audio workstations (DAWs) and extends the maximum recording time per track to very long sessions (up to several hours).
With any of the plans, even the free one, you'll have access to essential vocal and track separation toolsTherefore, it's easy to start without spending a euro and, if you need to, upgrade to more advanced features later on.
Key features that make the Moises app unique
In a market saturated with voice eliminators and similar services, Moises stands out because combine several advanced audio tools into a single platformalways maintaining easy handling from mobile or desktop.
One of its pillars is its AI-powered advanced runway separationIt's not limited to vocals and instrumentals: depending on the plan, you can differentiate between drums, bass, guitar, piano, keyboards, strings, or even wind instruments. This allows you to remix a song almost as if you had the original studio stems.
Another very useful function is the Precise separation of main voices and background voicesFor producers, arrangers, and backing vocalists, having the lead vocal separate from the backing vocals allows them to practice harmonies, study complex vocal arrangements, or generate custom backing tracks for rehearsals.
In the professional field of film, television and multimedia, Moises offers clues geared towards audiovisual projectsWith these features (available in advanced plans), it is possible to extract dialogue, soundtracks or sound effects from video files, something especially valuable for voice actors, video editors and content creators who work with complex material.
Audio quality is also a priority: many voice eliminators on the market leave a flat and artificial result, while the The AI-generated separation of Moses attempts to preserve more nuance and depth.This makes it suitable not only for karaoke, but also for remixes, more serious music productions, and post-production work.
Finally, the fact that all processing is done in the cloud allows that There should be no hardware barriers for the userYou don't need a high-end computer or a top-of-the-range mobile phone: simply upload the song and let the servers do the hard work, receiving the processed result afterward.
Which file formats work best when separating voice?
The quality of the separation depends heavily on the type of audio file you input into the appThe more information the original file contains, the easier it will be for AI to clearly distinguish between voice and instruments.
From a technical point of view, the ideal formats are those that They do not apply lossy compressionThat is, those that keep all the signal information intact. The classic example is WAV (.wav), which is used as a standard in many recording studios and offers full frequency and stereo resolution.
Another excellent option is the FLAC format (.flac)which uses lossless compression: it reduces the file size but doesn't remove audio information, maintaining the same quality as a WAV file. For accurately separating tracks, both WAV and FLAC are practically ideal.
In contrast, compressed formats such as MP3 (.mp3) or AAC (.m4a) They sacrifice some audio data to save space. Even so, if the bitrate is high (for example, 320 kbps), most AI applications can work with them with acceptable results, although somewhat inferior to those of a lossless file.
It is advisable to avoid, whenever possible, mono files, low quality MP3 (128 kbps or lower) and highly compressed streams (low-bitrate OGGs, for example). In these cases, the lack of detail in both the frequency spectrum and stereo information severely limits AI's ability to clearly separate the voice.
How to adjust the vocal volume within a song
Once you've separated the vocal track in Moses, you won't always want to remove the vocals completely. Often, the interesting thing is... raise or lower the vocal volume without completely removing itFor example, to practice singing along or to create a custom mix.
When you upload a song to the platform, Moises usually Initially establish the overall volume at a recommended value (around 75%) to maintain good audio quality and avoid clipping. From there, you can adjust the level of each track individually.
In the interface you will see a specific slider for the vocal trackMoving it up increases the presence of the vocals in the mix; moving it down or muting it reduces or completely eliminates the vocals, leaving you with the instrumental track. This logic also applies to the other separate tracks (bass, drums, etc.).
On the mobile app or tablet, the layout of these controls may vary slightly, but the principle is the same: sliders for each element that you can adjust in real time while you listen to the changes. This way, it's easy to find the perfect balance for your specific purpose.
Thanks to this system, you can create in seconds. alternative versions of the same themePure instrumentals, vocals with soft accompaniment, backing tracks emphasizing the drums or bass, etc., all without the need to use a traditional mixing console.
Troubleshooting problems uploading or exporting songs from your mobile device
Although the process is usually quite stable, failures can sometimes occur. Upload a song to Moises from your mobile phone or when exporting the result. There are several simple steps worth checking before assuming something is seriously wrong.
If the upload fails, the first thing to do is Check your data or Wi-Fi connectionSometimes, switching networks (from Wi-Fi to mobile data, or vice versa) and trying again resolves the issue. Completely closing the app and reopening it to refresh the session also helps.
On Android, it can be useful to enter the system application settingsLocate Moises and clear the cache from the storage section. After doing this, reopen the app and try uploading the file again. It's also important to ensure the file meets the requirements: supported formats (MP3, WAV, M4A, AAC, FLAC, OGG, and certain video formats) and a size below the limit (for example, 500 MB for free accounts).
Another detail to watch out for is the file nameSome unusual characters, symbols, or emojis can cause problems on certain platforms, so changing the name to something simple (without special characters) usually avoids compatibility issues.
Regarding export failures, it is advisable to check that the the separation and analysis process has been completely completedIf the track is still being processed, it cannot be downloaded. You should also check that the app has all the necessary permissions to access your device's storage and, if it doesn't, grant them in the settings.
If it still doesn't work after these steps, one alternative is Try the web version from a computerUploading and exporting the song from there. Often, changing devices or environments resolves specific issues related to the mobile phone or operating system.
With all these possibilities, from advanced AI separation to format management and the resolution of more typical problems, Anyone can turn their mobile phone into a small audio workstationWhether you want to do karaoke, analyze a mix in detail, practice your favorite instrument, or prepare a remix for your DJ sets, tools like Moises allow you to separate the vocal and instrumental tracks with remarkable quality and without complicating your life with technical configurations or expensive hardware.
