# Open Sound Meter
**Wikidata**: [Q123174108](https://www.wikidata.org/wiki/Q123174108)  
**Source**: https://4ort.xyz/entity/open-sound-meter

## Summary
Open Sound Meter is an open-source audio analyzer application designed for iOS devices, using Fast Fourier Transform (FFT) technology to measure and analyze sound systems. It allows users to tune and optimize audio equipment by providing real-time frequency and amplitude data, making it a valuable tool for audio professionals and enthusiasts.

## Key Facts
- **Platform**: Available exclusively for iOS devices.
- **Open-source**: The software is freely usable and redistributable under a permissive license, with its source code hosted on GitHub.
- **Development**: First released in September 2018 (version 0.0.1) and has since undergone multiple updates, with the latest stable version (0.3.1) released in February 2021.
- **Functionality**: Uses FFT-based analysis to measure sound frequency and amplitude, aiding in the tuning of audio systems.
- **Distribution**: Distributed as a digital download via the App Store (ID: 1552933259) and GitHub.
- **Social Presence**: Maintains active profiles on Facebook, Instagram, LinkedIn, and Telegram for community engagement.
- **Languages**: Official websites available in English and Russian.

## FAQs
### Q: What is Open Sound Meter used for?
A: Open Sound Meter is an audio analyzer that uses FFT technology to measure sound frequency and amplitude, helping users tune and optimize their audio systems.

### Q: Is Open Sound Meter free to use?
A: Yes, Open Sound Meter is open-source and free to download and use, with its source code available on GitHub.

### Q: Which devices can I use Open Sound Meter on?
A: Open Sound Meter is currently only available for iOS devices, meaning it works on iPhones and iPads.

### Q: How do I get started with Open Sound Meter?
A: You can download Open Sound Meter from the App Store or directly from its GitHub repository. Once installed, follow the in-app instructions to begin analyzing your audio systems.

### Q: Who developed Open Sound Meter?
A: Open Sound Meter was developed by Pavel Smokotnin, as indicated by his Instagram profile (@psmokotnin) and GitHub contributions.

## Why It Matters
Open Sound Meter fills a niche in the audio community by providing a free, open-source tool for sound system tuning. Its FFT-based analysis allows users to precisely measure sound frequencies and amplitudes, which is crucial for optimizing audio equipment. By being open-source, it empowers users to modify and improve the software themselves, fostering a collaborative development environment. This tool is particularly valuable for audio professionals and enthusiasts who need accurate, real-time feedback to enhance their sound systems. Its availability on iOS ensures accessibility for a wide range of users, making it a practical solution for both personal and professional audio tuning needs.

## Notable For
- **Open-source development**: Unlike proprietary audio analyzers, Open Sound Meter’s code is freely available, allowing users to contribute to its improvement.
- **iOS exclusivity**: As one of the few open-source audio analyzers for iOS, it caters to a specific but growing market of Apple device users.
- **FFT technology**: Its use of Fast Fourier Transform ensures precise and real-time sound analysis, a feature not commonly found in free audio tools.
- **Multilingual support**: The official website is available in both English and Russian, expanding its reach to non-English speakers.
- **Community engagement**: Active social media presence on platforms like Facebook, Instagram, and Telegram demonstrates a strong commitment to user interaction and feedback.

## Body
### Overview
Open Sound Meter is an open-source audio analyzer designed for iOS devices, leveraging Fast Fourier Transform (FFT) technology to provide real-time sound frequency and amplitude measurements. Developed by Pavel Smokotnin, the application is freely available for download and use, with its source code hosted on GitHub.

### Development and Releases
- **Initial Release**: Version 0.0.1 was released on September 12, 2018.
- **Latest Version**: As of February 11, 2021, the most recent stable version is 0.3.1.
- **Updates**: The software has undergone regular updates, with versions released every few months to address bugs and improve functionality.

### Technical Specifications
- **Platform**: iOS (compatible with iPhones and iPads).
- **Input Method**: Uses touchscreen interaction for controlling the analyzer.
- **Distribution**: Available as a digital download via the App Store and GitHub.

### Social and Community Engagement
- **Facebook**: Maintains a presence at [Facebook](https://www.facebook.com/opensoundmeter/).
- **Instagram**: Active profile under @psmokotnin.
- **LinkedIn**: Corporate page available at [LinkedIn](https://www.linkedin.com/company/opensoundmeter/).
- **Telegram**: Community channel at [Telegram](https://t.me/opensoundmeter).

### Official Websites
- **English**: [https://opensoundmeter.com/en/](https://opensoundmeter.com/en/)
- **Russian**: [https://opensoundmeter.com/ru/](https://opensoundmeter.com/ru/)

### Source Code
- **Repository**: Hosted on GitHub at [https://github.com/psmokotnin/osm](https://github.com/psmokotnin/osm).
- **License**: Permissive open-source license allowing free use and redistribution.

### User Benefits
- **Audio Tuning**: Provides precise measurements for optimizing sound systems.
- **Real-time Analysis**: FFT technology ensures accurate and immediate feedback.
- **Customization**: Open-source nature allows users to modify and enhance the software.

## References

1. [Release 0.0.1. 2018](https://github.com/psmokotnin/osm/releases/tag/v0.0.1)
2. [Release 0.0.2. 2019](https://github.com/psmokotnin/osm/releases/tag/v0.0.2)
3. [Release 0.0.3. 2019](https://github.com/psmokotnin/osm/releases/tag/v0.0.3)
4. [Release 0.0.4. 2019](https://github.com/psmokotnin/osm/releases/tag/v0.0.4)
5. [Release 0.1. 2019](https://github.com/psmokotnin/osm/releases/tag/v0.1)
6. [Release 0.1.1. 2019](https://github.com/psmokotnin/osm/releases/tag/v0.1.1)
7. [Release 0.1.2. 2020](https://github.com/psmokotnin/osm/releases/tag/v0.1.2)
8. [Release 0.2. 2020](https://github.com/psmokotnin/osm/releases/tag/v0.2)
9. [Release 0.3. 2021](https://github.com/psmokotnin/osm/releases/tag/v0.3)
10. [Release 0.3.1. 2021](https://github.com/psmokotnin/osm/releases/tag/v0.3.1)
11. [Release 1.0. 2021](https://github.com/psmokotnin/osm/releases/tag/v1.0)
12. [Release 1.0.1. 2021](https://github.com/psmokotnin/osm/releases/tag/v1.0.1)
13. [Release 1.0.5. 2021](https://github.com/psmokotnin/osm/releases/tag/v1.0.5)
14. [Release 1.1. 2022](https://github.com/psmokotnin/osm/releases/tag/v1.1)
15. [Release 1.2. 2022](https://github.com/psmokotnin/osm/releases/tag/v1.2)
16. [Release 1.2.1. 2022](https://github.com/psmokotnin/osm/releases/tag/v1.2.1)
17. [Release 1.2.2. 2022](https://github.com/psmokotnin/osm/releases/tag/v1.2.2)
18. [Release 1.2.3. 2023](https://github.com/psmokotnin/osm/releases/tag/v1.2.3)
19. [Release 1.3. 2023](https://github.com/psmokotnin/osm/releases/tag/v1.3)
20. [Release 1.4. 2024](https://github.com/psmokotnin/osm/releases/tag/v1.4)
21. [Release 1.4.1. 2025](https://github.com/psmokotnin/osm/releases/tag/v1.4.1)
22. [Release 1.5. 2025](https://github.com/psmokotnin/osm/releases/tag/v1.5)
23. [Release 1.5.1. 2025](https://github.com/psmokotnin/osm/releases/tag/v1.5.1)
24. [Release 1.5.2. 2025](https://github.com/psmokotnin/osm/releases/tag/v1.5.2)
25. [Open Sound Meter](https://opensoundmeter.com/en/)
26. [Open Sound Meter](https://opensoundmeter.com/ru/)
27. [psmokotnin/osm: Open sound meter. FFT based application for tuning sound systems.](https://github.com/psmokotnin/osm)
28. [Open Sound Meter on the App Store](https://apps.apple.com/us/app/open-sound-meter/id1552933259)
29. [Telegram: Contact @opensoundmeter](https://t.me/opensoundmeter)
30. [Pavel • Open Sound Meter (@psmokotnin) • Instagram photos and videos](https://www.instagram.com/psmokotnin/)
31. [Facebook](https://www.facebook.com/opensoundmeter/)
32. [(25) Open Sound Meter: Overview | LinkedIn](https://www.linkedin.com/company/opensoundmeter/)