FxSound vs SotF
FxSound
fxsound.com
SotF
sotf.spinorama.orgSide by side
| Figure | FxSound | SotF |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Audio Equalizer Software | 8.2 (#6) | 7.4 (#15) |
| Downloads | The download page offers Windows downloads for Intel/AMD x86/x64 and ARM64. | The download page lists macOS, Windows, and Linux releases, with stable desktop releases through platform stores and beta or command-line builds through GitHub Releases. |
| Privacy | The privacy policy says the website does not use cookies and does not sell or rent personal information. | SotF says it collects no user data and uses no analytics, telemetry, cookies, or tracking. |
| Support | The privacy page directs users to the forum with questions, and the privacy policy says submitted information may be used to provide customer support. | Users can submit feedback or bug reports through GitHub and join the AudioScienceReview discussion linked from the product page. |
Plans
In their own words
FxSound
FxSound is a free Windows audio-processing application founded in 1999. It adjusts timbre, volume, spatial balance, and dynamics, with an equalizer, effects, and presets for shaping sound. The maker lists music, gaming, transcription, video, calls, and general listening as uses, and mentions Zoom calls. Audio routing and volume controls let users tailor output for their hardware. Windows downloads are offered for Intel/AMD x86/x64 and ARM64 systems. FxSound includes noise reduction, virtual surround, and equalizer controls, but no app-specific profiles. The maker says the project became free in 2022 and open-source in 2023. Its website does not use cookies or sell or rent personal information. Contact messages may contain details users provide and may support customer service. FxSound says contributors fund development, hosting, and maintenance, and invites donations. The listed plan is FxSound at free for Windows PCs.
SotF
SotF is a free, open-source audio player and optimizer for room and headphone sound, available for Linux, macOS and Windows. It plays FLAC, MP3, AAC, ALAC and Vorbis files, and lists more than 40 audio plugins for equalization, compression, limiting, upmixing, binaural processing, convolution and denoising. Room EQ analyzes room response and calculates correction filters for a plugin chain; using it requires a measurement microphone, its calibration file and connected speakers. Headphone EQ calculates parametric filters targeting the Harman curve for hundreds of measured headphone models. Spinorama EQ provides correction for thousands of speakers without a microphone. SotF can export settings for CamillaDSP, Equalizer APO, EasyEffects, Wavelet, PipeWire and Roon. On macOS, a CoreAudio HAL virtual device can route audio from other apps through a configured plugin chain. The app runs on the user’s machine and says it does not collect user data or listening history. Speaker EQ queries the public Spinorama API for the selected model. SotF is GPL-3.0 licensed and has no subscription.