Neutron Audio Recorder1.12.0 - App Store

Neutron Audio Recorder is a powerful and versatile audio recording app for mobile devices and PCs. It is a comprehensive recording solution for users who demand high-fidelity audio and advanced control over the recordings.

Recording Features:

* High-Quality Audio: Utilizes an audiophile-grade 32/64-bit engine Neutron HiFi(TM) for professional-sounding recordings, well-known to Neutron Music Player users.
* Silence Detection: Saves storage space by skipping quiet sections during recording.
* Advanced Audio Controls:
- Parametric Equalizer (up to 60 bands) for fine-tuning audio balance.
- Customizable Filters for sound correction.
- Automatic Gain Control (AGC) to boost faint or distant sounds.
- Optional Resampling to reduce file size without sacrificing quality (ideal for voice recordings).
* Multiple Recording Modes: Choose between high-resolution lossless formats (WAV, FLAC) for uncompressed audio or compressed formats (OGG/Vorbis, MP3, SPEEX, WAV-ADPCM) to save space.

Organization and Playback:

* Media Library: Organize recordings for easy access and create playlists.
* Visual Feedback: View real-time audio levels with Spectrum, RMS, and Waveform analyzers.

Storage and Backup:

* Flexible Storage Options: Save recordings locally on your device's storage, an external SD card, or stream directly to network storage (SMB or SFTP) for real-time backup.
* Tag Editing: Add labels to recordings for better organization.

Specification:

* Neutron HiFi(TM) 32/64-bit hi-res audio engine (HD audio)
* OS and platform independent encoding and audio processing
* Bit-perfect recording
* Signal monitoring mode
* Audio formats: WAV (PCM, ADPCM, A-Law, U-Law), FLAC, OGG/Vorbis, Speex, MP3
* Playlists: M3U
* Metadata/tags editing
* Sharing recorded file with other installed apps
* Recording to the internal storage or external SD
* Recording to the network storage:
- SMB/CIFS network device (NAS or PC, Samba shares)
- SFTP (over SSH) server
* Output recordings to Chromecast or UPnP/DLNA audio/speaker device
* Device local music library management via the internal FTP server
* DSP effects:
- Silence Detector (skip silence during recording or playback)
- Automatic Gain Correction (sense distant and quite sounds)
- Configurable digital Filter
- Parametric Equalizer (4-60 band, fully configurable: type, frequency, Q, gain)
- Compressor / Limiter (compression of dynamic range)
- Dithering (minimize quantization)
* Profiles for settings management
* High quality real-time optional resampling (Quality and Audiophile modes)
* Real-time Spectrum, RMS and Waveform analyzers
* Playback modes: Shuffle, Loop, Single Track, Sequential, Queue
* Playlist management
* Media library grouping by: album, artist, genre, year, folder
* Bookmarks
* Folder mode
* Timers: stop, start
* Supports many interface languages

Support:
Please, report bugs directly by e-mail or via the forum.

Forum:
https://forum.neutroncode.com

About Neutron HiFi(TM):
https://neutronhifi.com

Follow us on X:
https://x.com/neutroncode
https://facebook.com/neutroncode

Version History * New:
- 130-band PEQ DSP
* Increase UI → Theme → Font Size max to 150
! Fix:
- do not show [+ Folder] for network sources 1.12.0 Oct 3 ! Fixed:
- Preamp could not be set above 0 dB
- Bookmarks: swipe to Playing Now does not work
- bookmark of the currently set tracklist could not be restored
- pressing restored and playing bookmark from Bookmarks will pause playback 1.11.2 Apr 20 ! Fixed:
- rare crash on SMB2 if SMB1 is disabled
- camera hole overflows UI in case of edge-to-edge screen (Galaxy Z Fold X and similar)
- some UI elements mispositioned on a square screen
- Bookmark not restoring track's category 1.11.1 Apr 15 * New:
- Bookmarks category: UI → Optional Features → Bookmarks
- Up to 70-bands for Parametric EQ
- UI → Optional Features -> AI: to disable AI functionality 1.11.0 Jan 20 * New:
- UI → Playing Now → [Tap Title → Track List] option
- Serbian language 1.10.2 11/12/2025 * Improved recording devices selection
! Fixed:
- SMB source stability: SMB2 connection could be dropped if file operation encounters an error
- USB driver: fixed getting max supported sample rate of ADC 1.10.1 10/06/2025 ! Fixed:
 - crash when Monitor mode is cancelled when source is SMB 1.09.1 04/19/2025 * New:
- SMB2/3 support (Sources → [+] → Network)
- Network → SMBv1 option: if switched off will speedup SMB network enumeration
- UI → Playing Now → Track Format/Properties Toggle: to change behavior of 3-dot button located Recording Now screen
 - manual sorting of source entries inside Sources category
* Auto-hide top toolbar in Landscape mode when UI was created directly in this mode
* All core improvements and fixes inherited from Neutron Music Player 1.09.0 04/18/2025 * New:
- Backup/Restore settings via Neutron Console
- create NeutronID via Settings → NeutronID → [+]
- Settings → Help: new Version entry to show current app version
- SFTP IPv6 support
* News from developer can be turned on/off: Help → Neutron News = Off (default = Off)
! Fixed:
- Cumulative Bode Plot shifted in EQ filter dialog if Follow Source Frequency is On
- network settings were not saved
- crash when SFTP source is trying to reconnect
- Gain slider could not reach 100 due to rounding
- EQ's bands not updated in Controls screen when EQ preset is reset from its dialog 1.08.2 11/26/2024 ! Fixed:
- crash when accessing Audio Hardware dialog 1.07.4 04/08/2024 * New:
- loudness measurement: improved the RMS widget to show wider loudness scale from -60 to 3 dB
- show dB moving average value inside RMS widget for convenient reading of loudness
* Core updates and fixes inherited from Neutron Player release 2.24.0 1.07.3 04/06/2024 * New (Output Format behavior):
- Channels: Requests hardware to provide a stream with the same or similar number of channels
- Frequency: If Audio Hardware - Frequency = DEFAULT, then requests hardware to provide a stream with the same or similar frequency
- Channel Multiplexer: Shows only channels supported by the hardware
! Fixed:
- Inconsistency between displayed format and actual recording format during recording 1.07.2 03/09/2024 ! Fixed:
- Bode Plot of individual EQ filters not shown (regression of 2.23.0) when EQ - Cumulative Bode Plot is Off 1.07.1 12/21/2023 * New:
- 32 and 64-bit floating point (fp) sample format support for WAV format
* Show PCM format details (codec, bits) in Recorder setup dialog
! Fixed:
- possible occasional interruptions when recording in background
- memory corruption by Equalizer DSP if configured for > 4 channels 1.07.0 12/18/2023 * Support for unprocessed input (select audio devices with [Unprocessed] tag to get audio data unprocessed by the OS)
* Updated network subsystem for better compatibility with servers (network source)
! Fixed:
- Filter DSP: Q giving insufficiently steep slope for Shelf filters (HS, LS) 1.06.9 09/12/2023 * 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 1.06.7 03/30/2023 * Changed Recording - Monitoring behavior: Recording mode - singe tap on Record button, Monitoring mode - long-press on Record button
* Enabled Output To: to output/play recordings to UPnP/DLNA renderers or Chromecast device
! Stability fixes accumulated from NMP 1.06.6 02/26/2023 * Fixed:
- if Stop is pressed while in Monitoring mode the sub-sequent monitoring attempt does not succeed. 1.06.5 09/27/2022 * Improved SFTP source operation.
* Fixed:
- Waveform UI showing level value 0.5 instead of 0.05;
- no input devices available if 64-bit Processing option is switched on. 1.06.4 09/22/2022 ! Fixed landscape mode for all iPhone models with on-display camera inset. 1.06.3 06/27/2022 * Fixed (regression of 1.06.0-1):
- Recording Now settings always disabled;
- progress reset to 0 if recording is paused and resumed. 1.06.2 06/06/2022 * Fixed (regression of 1.06.0):
- unable to pause/stop playback;
- unresponsive UI while monitoring. 1.06.1 06/06/2022 * Monitor mode: pressing small Record button or when no session is started will put recorder into a monitoring mode, e.g. RMS, Waveform and Spectrum are active but output file is not filled with data. 1.06.0 06/05/2022 * Show level label in Waveform window.
* Enabled full-screen mode on tap, enabled RMS widget in landscape mode in full-screen mode.
! Fixed:
- RMS display showing values -3 dB less than required;
- always Mono recording. 1.05.3 12/17/2021 ! Fixed:
- Spectrum shows wrong scale if following track's frequency and output frequency is lower than track's. 1.05.2 11/07/2021