Official privacy practices and data principles for the Spek Spectrogram Analyzer mobile application.
Audio analysis and calculations occur entirely on your local device. Your files never leave your hardware.
Microphone buffers are transient, run purely in temporary memory, and are deleted immediately after rendering.
No user accounts, emails, or signups are required. Your preferences are stored exclusively on-device.
Spek is a utility designed to analyze and display the frequency composition of audio files locally. We do not rely on remote computing servers to perform data calculations or render graphs.
Every analysis step, frequency calculation, and visual output generation is executed directly on your physical device.
Because the app does not transmit audio data to external servers, you can use all analysis features without an active internet connection. Your source files and generated spectrogram outputs remain strictly confidential and under your control.
The App includes a live capture mode to visualize ambient room sounds or external feeds and display them in real-time.
When you enable this feature, the App requests permission to access your device's microphone. The captured audio is handled in accordance with the following security practices:
To deliver a fluid user experience and maintain file access across sessions securely, Spek integrates local file management practices:
To protect your identity:
To support ongoing development, Spek displays banner advertisements at the bottom of the home and settings screens. To comply with global consent frameworks, we integrate the following services:
Ad SDKs run strictly in non-personalized mode unless you explicitly grant tracking consent. The primary spectrogram viewing screen itself remains entirely ad-free to keep your analysis environment clean.
To learn more about how Google processes advertising data, please review the Google Privacy Policy.
We reserve the right to update this policy to align with future feature additions or platform security requirements. Any updates will be posted here on this page.
If you have any questions, security concerns, or inquiries regarding your data while using Spek: Spectrogram Analyzer, please contact our support desk.