Spek Software provides a complete audio spectrogram analyzer for audiophiles who need to detect lossy compression artifacts and verify authentic lossless audio quality. Spek Software reveals frequency cutoffs characteristic of MP3, AAC, OGG, and lossy-transcoded files through color-coded spectral visualization. Spek Software offers real-time spectrogram generation, drag-drop interface, and zoom/pan navigation for detailed frequency inspection. Spek Software supports FLAC, WAV, AIFF, ALAC, MP3, AAC, OGG, TTA, WV, APE, and WMA formats. Spek Software enables batch processing entire music libraries, spectrum color customization, adjustable FFT window size, and image export for sharing on audiophile forums. Spek Software is trusted by audiophiles, music collectors, sound engineers, and quality control specialists worldwide.
FFT window size vs frequency resolution, overlap percentage, and when to spot transcode frequency cutoff Lossy detection thresholds (MP3 16-20kHz cutoff, low bitrate 11-14kHz), and storage optimization for batch analysis Spectrum color mapping, dynamic range scaling, and logarithmic frequency scale for low bass visibility PRO version multi-file comparison, sample offset alignment, and difference spectrogram generation
- Users who prefer portable spectrogram analysis suites without permanent installation
- Workplaces where administrative privileges are restricted
- Privacy-focused users wanting local-contained session data
- Frequent travelers using multiple audiophile workstations
- USB-based lossy detection configurations
- Audiophiles and music collectors who use temporary systems
- Workplaces where installation is restricted — Spek Software operates from user-writable folders
- Privacy-focused users wanting local-contained session data — Spek Software stores no user data remotely
- Frequent travelers using multiple computers — Spek Software settings sync across machines via cloud folder
| Operation | Spek Software Action |
|---|---|
| Open audio file | Cmd+O |
| Drag-drop file | Drag to Spek window |
| Zoom in | Cmd+Plus |
| Zoom out | Cmd+Minus |
| Zoom to fit | Cmd+0 |
| Pan spectrogram | Click and drag |
| Export as PNG | Cmd+E |
| Toggle log frequency scale | Cmd+L |
| Show/hide color legend | Cmd+H |
| Adjust FFT size | Cmd+Shift+F |
| Open preferences | Cmd+, |
| Batch analyze folder (PRO) | Cmd+Shift+B |
• Spek audio spectrogram analyzer • lossy compression detection tool • MP3 AAC OGG frequency cutoff • color-coded spectral visualization • real-time spectrogram generation • drag-drop interface • zoom pan navigation • FLAC WAV AIFF ALAC support • MP3 AAC OGG TTA format • batch library processing • spectrum color customization • FFT window size adjustment • image export audiophile forum • lossy lossless verification • music collector essential • quality control lossy detection