Spek Spectrogram analyzer
Audio Spectrum Analyzer
About
Visualize audio frequencies with detailed spectrograms. Inspect audio quality, identify compression artifacts, and analyze sound changes over time. Process audio locally for enhanced privacy and security.
What's New in Spek Spectrogram analyzer
1.0.2
July 13, 2026
What's New in This Version This is our biggest update yet, featuring a refreshed design, powerful new audio analysis tools, broader format support, and major performance improvements. • Redesigned Home and Settings screens with a modern, adaptive interface. • Added support for audio files containing multiple audio streams. • Extended FFT size options for higher-resolution spectrogram analysis. • Introduced new color palettes and advanced windowing options for improved spectrogram visualization. • Significantly faster spectrogram generation and overall performance improvements. • Added native decoding support for additional high-quality audio formats, including FLAC. • You can now share generated spectrogram images directly from the app. • Added a new "More Info" panel with detailed audio file information. • Improved navigation with intuitive swipe-to-go-back gestures. • Fixed microphone input issues and resolved various bugs for a more stable experience. Thank you for using our app. We hope you enjoy this update!
MoreDeveloper apps
FAQ
What audio formats does Spek support?
Spek supports a wide range of popular audio formats including WAV, AIFF, MP3, AAC, M4A, FLAC, and OGG. It also includes advanced decoding and file validation for reliable analysis.
Can I listen to audio while analyzing it with Spek?
Yes, Spek includes an integrated audio player with a synchronized playhead that moves across the spectrogram in real time. This allows you to quickly correlate what you hear with the visual analysis.
Does Spek process audio locally?
Yes, Spek is built with privacy in mind. All audio processing is performed locally on your device, meaning no audio files are uploaded and no analysis data leaves your device.
How can I customize the spectrogram analysis in Spek?
You can customize the analysis engine with multiple FFT sizes, adjustable overlap and time density settings, selectable window functions, configurable dB ranges, and multiple color palettes for enhanced visibility.
What is the age rating for Spek?
Spek has an age rating of 4+. This indicates it is suitable for a very broad audience, including young children, with no mature content.
Is Spek available on multiple devices?
Yes, Spek is available on both iPhone and iPad. It is designed to provide powerful analysis tools directly on your mobile devices.
How often is Spek updated?
The latest version of Spek is 1.0.2, which was last updated on July 13, 2026. Updates typically include performance improvements and new features.
What are users saying about Spek?
Spek has received excellent user feedback, with an average rating of 5.0 stars from 1 rating. This suggests a very positive user sentiment.