Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Neutron Music Player Screenshots

iPad

iPhone

About Neutron Music Player

Neutron Player is an advanced music player with an audiophile-grade platform-independent in-house developed 32/64-bit audio engine which does not rely on the OS music player API and thus delivers truly unique experience to you.

* It outputs hi-res audio directly to the internal DAC (including USB DAC) and offers a rich set of DSP effects.

* It is the only application capable of sending audio data to the network renderers (UPnP/DLNA, Chromecast) with all DSP effects applied, including the gapless playback.

* It features a unique PCM to DSD real-time oversampling mode (if supported by DAC), so you can play your favorite music in DSD resolution.

* It offers the sophisticated user interface with an advanced media library functionality that is appreciated by audiophiles and music lovers from all parts of our world!

FEATURES

* 32/64-bit hi-res audio processing (HD audio)
* OS and platform independent decoding and audio processing
* Hi-Res Audio support (up to 32-bit, 768 kHz)
* Bit-perfect playback
* Supports all audio formats
* Native DSD (direct or DoP), DSD
* Multi-channel native DSD (4.0 - 5.1: ISO, DFF, DSF)
* Output all to DSD
* DSD to PCM decoding
* DSD formats: DFF, DSF, ISO SACD/DVD
* Module music formats: MOD, IM, XM, S3M
* Voice audio format: SPEEX
* Playlists: CUE, M3U, PLS, ASX, RAM, XSPF, WPL
* Lyrics (LRC files, metadata)
* Streaming audio (plays Internet radio streams, Icecast, Shoutcast)
* Supports large media libraries
* Supports iTunes library (non DRM) and local files (inside /Documents folder)
* Supports external storage via Apple Lightning USB port (iOS 13+)
* Network music sources:
- SMB/CIFS network device (NAS or PC, Samba shares)
- UPnP/DLNA media server
- SFTP (over SSH) server
- FTP server
- WebDAV server
* Output to Chromecast (up to 24-bit, 192 kHz, no limit for a format or DSP effects)
* Output to UPnP/DLNA Media Renderer (up to 24-bit, 768 kHz, no limit for a format or DSP effects)
* Direct output to USB DAC (via USB OTG adapter, up to 32-bit, 768 kHz)
* UPnP/DLNA Media Renderer server (gapless, DSP effects)
* Device local music library management via internal FTP server
* DSP effects:
- Parametric Equalizer (4-60 band, fully configurable: type, frequency, Q, gain)
- Graphic EQ mode (21 presets)
- Frequency Response Correction (5000+ AutoEq presets for 2500+ headphones, user defined)
- Surround Sound (Ambiophonic RACE)
- Crossfeed (better stereo sound perception in headphones)
- Compressor / Limiter (compression of dynamic range)
- Time Delay (loudspeaker time alignment)
- Dithering (minimize quantization)
- Pitch, Tempo (playback speed and pitch correction)
- Phase Inversion (channel polarity change)
* Speaker overload protecting filters: Subsonic, Ultrasonic
* Normalization by Peak, RMS (Preamp gain calculation after DSP effects)
* Tempo/BPM analysis and categorization
* Replay Gain from metadata
* Gapless playback
* Hardware and Preamp volume controls
* Crossfade
* High quality real-time optional resampling
* Real-time Spectrum, Waveform, RMS analyzers
* Balance (L/R)
* Mono mode
* Profiles (multiple configurations)
* Playback modes: Shuffle, Loop, Single Track, Sequential, Queue
* Playlist management
* Media library grouping by: album, artist, composer, genre, year, rating, folder
* Artist grouping by 'Album Artist' category
* Tag editing: MP3, FLAC, OGG, APE, SPEEX, WAV, WV, M4A, MP4 (internal, SMB, SFTP)
* Folder mode
* Clock mode
* Timers: sleep, wake
* Interface languages: Русский, 中文 (繁体), 中文 (简体), 한국어, 日本語, Việt, ไทย, Deutsch, Italiano, Indonesian, Malay, Nederlands, Français, English, Español, ελληνικά, Português, Magyar, Polski, العربية, Türk

SUPPORT

Please report bugs directly by e-mail or via forum:

Forum:
http://neutronmp.com/forum

X:
http://x.com/neutroncode

What's New in the Latest Version 2.24.0

Last updated on Apr 1, 2024

Old Versions

* New:
- Audio Hardware - Oversampling - Frequency Limit option: to limit oversampling to some max frequency
- EQ channel label in Controls screen toggles between EQ channels
- entering Clock mode will no longer stop music playback
- support for Software Gain by Wake-Up Timer
* Improved AGP - Reset Gain behavior
* Speaker DSP: expanded Delay setting to 20 ms
! Fixed:
- Speaker DSP: 2.1 mode giving noise

Version History

2.24.0

Apr 1, 2024

2.23.9

Mar 5, 2024

* New:
- Pseudo-stereo DSP effect: Creates a pseudo-stereo (fake stereo) effect from mono sources (mono/1-channel tracks only). Manage by profile, accessible via Playback -> DSP Effect -> Pseudo-stereo
* Improved overall performance
! Fixed:
- Category Widget not showing up when pressing the 3-dot button in the Media Library screen (bottom left corner)

2.23.6

Feb 26, 2024

* Support for DoP (DSD) in FLAC
* Set maximum value for [Audio Hardware - Oversampling] to 32x to support devices with max 1.536 MHz PCM
* Improved memory usage when using SFTP (SSH)
* Allow cloud-based tracks to be added into media library
! Fixed:
- misaligned Bode Plot on some specific screen aspects
- silence in 64-bit Processing on Shanling M6 pro 21 DAP
- fast scroller malfunctioning on collections with 50k+ tracks
- controls overlapped when sorting tracks in Landscape view
- various rare crashes

2.23.3

Dec 21, 2023

! Fixed:
- Bode Plot of individual EQ filters not shown (regression of 2.23.0) when EQ - Cumulative Bode Plot is Off

2.23.2

Dec 17, 2023

New:
- ability to rate groups of tracks (multiselection, albums, artists, ...) from properties dialog
- support for rating tag IRTD in WAV, POPM MusicBee tag in ID3v2
- optional action User Interface -> Panel: Top option: Power Off for quick exit from Neutron
* Show real-time Cumulative EQ Bode Plot in individual EQ filters to assist with EQ preset building
* Subsonic and Ultrasonic DSP:
- UI moved to Playback - DSP Effect section
- managed by Profile
- Off in Bit-perfect profile
* Removed clamping of manually entered Preamp values in EQ setup dialog
* Updated AutoEq database to the latest (Dec 2023)
! Fixed:
- crash in Speaker DSP UI when max channel is selected
- memory corruption by Equalizer DSP if >4 output channels
- playlist entry's absolute path resolving for normal file system paths
- Ultrasonic Filter DSP UI plot grid not scaled to max frequency correctly
- format [:] button is hardly clickable on Playing Now
- apply natural sorting for filenames when getting first file from album folder
- conversion of Vorbis RATING tag to 1-5 stars equivalent
- show multiselection button in the group lists if multiselection is active

2.22.7

Oct 23, 2023

New DSP UI widget mode: Waveform only with/without album art in background
* Use signal for Alarm if music is playing during the Alarm time
* Updated AutoEQ database to the latest (end of Oct 2023)
! Fixed:
- FLAC file playback could break due to bitstream errors inside the file
- playback button does not change state to Stop if streaming to UPnP/Chromecast and breaking it by pressing the icon
- rare crash in UI
- reverted to max 8 I/O channels (compatibility issues if more)

2.22.4

Sep 11, 2023

* New:
- category option All Songs to switch off All Songs track list for the category entries
- Tile View option will now affect category entries and its albums separately (activate separately for Albums, Artists, Genres,...)
- added Setup options for Years category
- added [+ Queue] to Songs for easier handling of true random playback via Dynamic, Random Queue
- support for OPUS inside M4A
- added Czech translation
- tracks sorting type solely by filename, renamed previous Filename to Path, Filename which is sorting by path and filename (default)
* Differentiate floating-point and integer formats by showing -fp postfix for floating-point format in the track format info bits field
* Updated AutoEQ database to the latest
* Updated network subsystem for better compatibility with servers (network source)
! Fixed:
- Filter DSP: Q giving insufficiently steep slope for Shelf filters (HS, LS)
- CUE file could not be loaded if one of the tracks does not contain INDEX entry
- EQ preset bound to Bluetooth device via Device binding is not selected and set to Line Out with Bluetooth connection being active when started
- Recently Played existing entry not bumped to the top when played again
- Most Played entry not counted if playing from Most Played list
- OS widgets or notifications could show stale info about previous track while some streaming track is being loaded
- bad streaming entry reloading could not be canceled by attempt to play another healthy streaming entry

2.22.2

Jun 4, 2023

* New:
- support for FLAC inside M4A/MP4/MOV containers
- support for 32-bit Int FLACs
- support for 32-bit Int FLAC for Output To (note: 32-bit Int FLAC is supported since libFLAC 1.4.0 released in 2022 so majority of renderer devices will not support it)
- time label on Queue entry: to show total time of all tracks in the Queue
! Fixed:
- noise in the last 20 seconds of PCM track playback if followed by DSD track with Oversampling = On
- streaming to Chromecast Audio devices with latest firmware (1.56.281627+)
- looping of the first track in the Queue when more tracks were enqueued after the first one and Loop Track List is On

2.22.0

Mar 31, 2023

* New:
- support for accessing external storage (USB drive and etc) connected via Apple Lightning USB port as well as Document folders of other local apps: Sources - + - File System - + - add permission to access external folder on external drive or another local app's folder
- UI - Optional Features - Recently Added: to disable/enable Playlists -> Recently Added
* Improved:
- album-art lookup for Albums list by using album-art image from the first music track
- stability of resuming playback after audio focus loss and re-gain
! Fixed:
- interrupted playback for 1-2 seconds when resumed after focus loss

2.21.10

Feb 27, 2023

! Fixed crash on some firmwares (regression of 2.21.9).

2.21.9

Feb 26, 2023

* New category Playlists - Most Played
* [+ Streaming] action for streaming entries of the media library
* Switch groups in a loop (now default behavior, including swipe up/down in Playing Now)
* Improved compatibility with WebDAV servers
* Updated FRC - AutoEq presets to the latest
! Fixed:
- rare crash when connecting to Chrome cast device which rejects connection

2.21.7

Dec 24, 2022

* Updated FRC DSP - AutoEq database to the latest
! Fixed:
- imprecise MP3 seeking which caused mismatching of the synchronized lyrics

2.21.6

Dec 5, 2022

! Fixed:
- search for UPnP/DLNA servers on iOS 16 and higher (addition)

2.21.5

Dec 4, 2022

! Fixed:
- search for UPnP/DLNA servers on iOS 16 and higher
- could not send DSD from one Neutron Player to another (UPnP/DLNA Renderer) if WAV transport not selected
- crash on DSD1024 to PCM conversion if target sample rate was not multiple of 44100

2.21.4

Nov 8, 2022

! Fixed various crashes.

2.21.3

Oct 20, 2022

* Update network interfaces in Network View dialog if network changes
* Web-search by the title, album, artist (long-press song entry - press item to search)
* Make URLs in UPnP device properties openable in a web browser
! Fixed:
- Recently Added playlist not updated during playback
- misdetection of local network availability
- compatibility with Asus router WebDAV server where router path was hidden from the folder list

2.21.1

Aug 21, 2022

* New:
- Tempo/BPM Analysis: accessible from top-level settings list (or long-press Album), analyzes BPM of tracks and creates media library - Tempo category;
- Tempo categories are long-pressable and provide +Queue, +Playlist for easier mixing;
- "All Tempo" category which does not group BPM for a more fine grained mixing;
- optional Tempo category in the top-panel;
- [PCM to DSD] - Oversample 8x option: to force 8x oversampling for PCM core that results in a higher resolution of DSP processing (EQ, FRC, Crossfeed, ...) REQUIRES VERY FAST CPU!
- Digest authentication for WebDAV source;
- uninterrupted playback of SFTP sourced track if Internet connection changes between mobile an WiFi or drops completely for a short period (up to 15 seconds).
* Updated FRC/AutoEQ database to the latest.
* Blend bottom and front colors of the Spectrum Analyzer and RMS bars.
* Increased max value of UI - Fast Seek to 60 seconds.
* Bound Audio Hardware - Hardware Volume and Playback - 64-bit Processing to profile.
! Fixed:
- Global Search result cleared if source entry is refreshed;
- synchronized lyrics loading: only one of multiple lines with the same timestamp was displayed;
- Opus stream not recognized as Opus and thus limited to basic streaming metadata only;
- parsing URL when it contains port number and 'at' symbol in the path;
- crash on attempt to delete CUE track, limit CUE track to Remove - Ignore;
- WV file could not be loaded if WVC file is invalid;
- WVC loading from SFTP source.

2.20.4

Jun 26, 2022

! Fixed landscape mode for all iPhone models with on-display camera inset.

2.20.3

Jun 4, 2022

* Improved tolerance to database failures by keeping last working version.
* Updated FRC presets to the latest.
! Fixed:
- ABC widget could point list to the wrong position;
- infinite duration not detected in case of Foobar2000 UPnP streaming via WAV.

2.20.0

Apr 29, 2022

* New:
- PM - Sequential - Rewind Tracklist: to rewind tracklist to the beginning when reached its end
! Fixed:
- noise when switching gapless DSD tracks
- UPnP: incompatibility with devices using [Range: bytes=0-] header in request
- could not clear Chromecast devices from Output To list
- Mono mode not affecting Stereo files if Upmix is Off

2.19.5

Mar 10, 2022

* New:
- DSD and DSD sub-settings, Oversample, Upmix and Follow Source Frequency settings are managed by Profile now;
- ability to clear/refresh UPnP/Chromecast device list in Output To and Source - + - UPnP/DLNA.
! Fixed:
- AGP affecting FRC preset;
- Ultrasonic Filter misconfigured if Oversampling is active;
- slow UI response (Spectrum Analyzer, Waveform and RMS) during playback.

2.18.7

Feb 11, 2022

Support for ISO XML metadata descriptor (details: https://neutroncode.com/feature_iso-meta).

! Fixed:
- Profile can not be configured if its name was erased;
- UPnP playlist could reference single track for all entries with the same title;
- SACD image not split into tracks if track's information does not contain text at least title;
- DSD not available if DSP Effect (Device) is active and output goes to USB DAC or UPnP/DLNA render.

2.18.6

Dec 15, 2021

* New:
- support for DSD over UPnP/DLNA (DSD must be sent as DoP inside 24/32-bit WAV container);
- Output To: new transport format WAV (24-bit [default], 16-bit, 32-bit) for UPnP/DLNA streaming;
- restart UPnP/DLNA Renderer on localhost (127.0.0.1) if LAN/WAN unavailable to allow interaction with other apps.
! Fixed:
- wrong WMA Lossless duration;
- wrong duration of WebM files (incomplete support yet, tags must contain DURATION tag in form hh:mm:ss);
- Streaming entry can not be selected for playback if UPnP/DLNA Renderer was active.

2.18.5

Nov 5, 2021

* New:
- Audio Hardware - Upmix option;
- DSD256 option for PCM to DSD mode (if DAP supports 705.6 Hz PCM for DoP);
- IPv6 support;
- bind Audio Hardware - Follow Source Frequency to Profile;
- use original APE decoder to support all APE file versions;
- option Network - Prefer Direct: to manage network usage preference (VPN/Wi-Di Direct is preferred by default).
* Updated FRC - AutoEQ database.
! Fixed:
- Wrong artist name could be shown in the album list header if 1-st track has different artist but album has album-artist assigned;
- volume could not be negative for PeakEQ + BW in the Filter GUI, fixed 0 frequency should not be reachable with a slider to avoid error;
- when user closes text window with tap, accept previously made input;
- do not reset Preamp to 0 for Replay Gain normalized track when AGP is Off;
- Mono track has low volume if Audio Hardware -> Mono option is switched on;
- native DSD not audible if Audio Hardware - Mono is On;
- DSD formats (DFF, DSF, ISO) not activated for the file if it has no meaningful filename;
- Oversample 16x could result in original sample rate even if hardware supports higher frequencies;
- Spectrum shows wrong scale if following track's frequency and output frequency is lower than track's.

2.17.4

May 30, 2021

! Fixed ID3v2 tags could not be read fully if POPM tag present (regression of 2.17.3).

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