saimox Player

Hear where the sound is

Free · Designed for iPad. Not verified for macOS.

Hear where everything is — not just left and right, but above, behind and around you. Turn your head and it stays put. Now with video. saimox Player plays spatial audio the way it was mixed — every object in its own place, moving through the room over time. WHAT IT PLAYS · SMX packages (.smxd) — streamed from an address or stored on your device · SMX works with picture (.smxv) — the sound and the film, side by side · Multichannel files up to 9.1.6 and 7.1.4 — WAV, AIFF, multichannel PCM · Ordinary files too — MP3, WAV, AIFF, M4A Multichannel files are folded to your headphones through the same HRTF path as an object mix. No downmix to stereo first. Tap an .smxd, an .smxv or a playlist anywhere — Files, Mail, AirDrop — and it opens here. WITH PICTURE A work can carry a film. The sound leads and the picture follows, and the latency of your headphones is measured rather than declared. Turn the phone and the picture turns with it. Works can ship several picture sizes. Pick one by hand, or set a cap for Wi-Fi and another for mobile data. What is playing is read from the file itself, not from its name. SEE THE ROOM The space monitor shows every object where it actually is, moving as the piece plays. Turn it, zoom, or step inside: in head view the camera sits where you sit, and with head tracking the picture turns as you do. Connect a TV or projector and it fills the screen on its own. The phone stays playable and the sound stays wherever you put it, so the picture can go to a projector while the audio goes to a PA. MEASURED, NOT GUESSED Loudness, peak, peak-to-loudness and loudness range for every piece, measured to BS.1770-4 and EBU R128. Set a playback target and pieces are brought to it — quiet ones only as far as their peak allows, so nothing gets squashed by a limiter. The energy curve shows left, right, front, back, up and down over the whole piece, and doubles as the scrubber. FIND THINGS AGAIN Recently played, favourites, recently added, videos, and a row for SMX packages. Open any of them full screen and group by artist. Album, genre, year and credits come from the package and are shown alongside the measurements. BUILT FOR LISTENING · Head tracking with compatible headphones · Playlists you can share as a file — importing one that already exists asks what to do · Download for offline — no buffering, instant seeking · Ten colour themes · Twenty languages ABOUT SMX SMX is an open format for object-based audio. Instead of a finished mix of channels, a file holds the individual sounds and, for each of them, where it is and how it moves. No ceiling on how many objects a piece may hold. Formats with a fixed maximum — often a hundred and eighteen — force a mix to be reduced before it ships, and no player can undo that reduction later. An SMX package keeps what the mix had. What limits playback is the device, not the format. That is why this app can do what it does. A stereo or surround mix is already decided — the room was baked in when it was made. An SMX package still has the pieces, so it can be rendered for whatever you are listening on, and it can turn with your head, because the positions are still there to turn. Movement is described, not sampled. A sound that circles the room is a few lines saying so, not thousands of coordinates per minute. That keeps packages small enough to stream over mobile data. And it is meant to be reactive: the format reserves a way for objects to respond to something happening while the piece plays. That part is beginning, not finished. The format is free to use. No licence to buy, no per-title fee, no certification to pass, nobody to ask. Write an encoder, ship a player, put SMX in your own product — the specification and the reference implementation are open, and that does not change later. If you make spatial audio yourself, saimox Studio writes SMX and converts to and from all usual delivery formats. And if you build hardware or software, libsaimox does the reading, the positions and the rendering for you — ask us at saimox.com. No accounts. No advertising. No tracking. The app does not phone home.

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WITH PICTURE A work can now carry a film. Open an .smxv and the picture plays with the sound — as its own mode, not a fifth tab. The sound leads and the picture follows. Below 40 ms nothing is corrected, above 200 ms it jumps, and the latency of your headphones is measured rather than declared. Turn the phone and the picture turns with it. · A Videos row on the home screen, and a full list behind it — duration, format, artist, play count · Tap the picture for name, transport, time and volume, tap again and they are gone · Scrub on the energy curve and the frame follows while you drag SEVERAL PICTURE SIZES A work can ship more than one size. Pick one by hand in the video window, or set a cap in Settings — one for Wi-Fi, one for mobile data, so a train journey does not cost what an evening at home does. With bandwidth thresholds in the work, the app can also choose by itself. The switch is visible: the picture goes black for a moment and comes back where it left off. The sound never stops. What is actually playing is read from the file — resolution, frame rate and codec, measured, not taken from the file name. VIDEO STREAM ON THE INFO TAB Buffered seconds, stalls, observed and declared bitrate, bytes transferred. These figures are reported by the system rather than counted by this app, and the tab says so: the audio figures next to them are counted here, where the bytes arrive. ALSO IN THIS VERSION · Search on the home screen · Output channel count and real meters on the info tab, so you can see what the device is actually being handed · Play on another device from the context menu, with a word about what AirPlay does to a spatial mix · Share a single work as a file, the same way playlists already share · Twenty languages — every new text translated, not left in English FIXED · Playback order carried on past a work that ships as .smxv instead of stopping after it · Title and duration of a work are taken from the work itself, not from its file name · Video window: controls no longer sit against the edge in landscape, and every button is now a full target on Mac as well as iPhone

The developer, Desteba Productions, S.L., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    DESTEBA PRODUCTIONS SL.
    Size
    3.8 MB
    Category
    Music
    Compatibility
    Requires iOS 16.6 or later.
    • iPhone
      Requires iOS 16.6 or later.
    • iPad
      Requires iPadOS 16.6 or later.
    • Mac
      Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 17 more
    • English, Arabic, Catalan, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Ukrainian
    Age Rating
    4+
    Copyright
    © 2025-2026 Desteba Productions, S.L.