Spek Spectrogram analyzer
ミュージック
無料 · iPadに対応しています。macOSでは検証されていません。
Professional audio spectrum analysis and spectrogram visualization for engineers, producers, creators, and audio enthusiasts.
Spek transforms audio into a detailed visual spectrogram, allowing you to inspect frequencies, identify compression artifacts, evaluate audio quality, and explore how sound changes over time. Whether you're mastering music, verifying lossless audio, analyzing recordings, or troubleshooting noise issues, Spek provides powerful analysis tools directly on your device.
Built with performance and privacy in mind, all audio processing is performed locally on your device. No audio files are uploaded, and no analysis data leaves your device.
PROFESSIONAL AUDIO ANALYSIS
Import audio files and instantly generate detailed spectrograms that reveal the frequency content of your recordings over time.
Use Spek to:
• Verify audio quality and detect compression artifacts
• Identify frequency cutoffs caused by lossy encoding
• Check whether a file is truly lossless or an upscaled source
• Analyze background noise and unwanted frequencies
• Inspect dynamic range and spectral balance
• Examine left and right audio channels independently
• Explore detailed frequency information throughout an entire recording
SUPPORTED AUDIO FORMATS
Analyze a wide range of popular audio formats, including:
• WAV
• AIFF
• MP3
• AAC
• M4A
• FLAC
• OGG
Advanced decoding and file validation help ensure reliable analysis, even when audio files contain metadata issues or damaged container structures.
HIGH-RESOLUTION SPECTROGRAMS
Customize the analysis engine to match your workflow:
• Multiple FFT sizes (1024, 2048, 4096, 8192)
• Adjustable overlap and time density settings
• Selectable window functions including Rectangular, Hann, and Hamming
• Configurable minimum and maximum dB ranges
• Multiple color palettes for enhanced visibility
Fine-tune the balance between frequency resolution and time resolution to reveal exactly the information you need.
Navigate large spectrograms with ease:
• Pinch to zoom
• Smooth pan navigation
• Linear frequency scale
• Logarithmic frequency scale
• High-detail deep zoom rendering
• Fast viewport updates and responsive interaction
Explore both broad frequency trends and microscopic spectral details without sacrificing performance.
Listen while you analyze.
Spek includes an integrated audio player with a synchronized playhead that moves across the spectrogram in real time. Quickly correlate what you hear with what you see and locate specific events within the audio.
Features include:
• Real-time playback synchronization
• Moving visual playhead cursor
• Optional playhead following mode
• Efficient rendering for smooth performance
Visualize incoming audio directly from your microphone.
Monitor environmental sounds, voices, instruments, and test signals in real time through a continuously updating spectrogram display.
Ideal for:
• Acoustic inspection
• Noise identification
• Equipment testing
• Educational demonstrations
• Sound design experimentation
Share or archive your analysis results with high-resolution spectrogram exports.
Export:
• Full spectrograms
• Current viewport selections
• Professional-quality PNG images
Perfect for reports, documentation, presentations, and collaboration.
Spek is useful for:
• Audio Engineers
• Music Producers
• Mastering Engineers
• Podcasters
• Sound Designers
• Archivists
• Collectors
• Researchers
• Students and Educators
Whether you're validating audio sources, investigating recordings, or studying sound behavior, Spek provides the tools needed for accurate visual audio analysis.
FAST, PRIVATE, AND OFFLINE
Your privacy matters.
• No account required
• No audio uploads
• No cloud processing
• No user tracking by the app itself
• 100% local audio analysis
Audio decoding, FFT processing, and spectrogram rendering are performed directly on your device, giving you complete control over your files and data.
Download Spek today and discover what your audio really looks like.
評価とレビュー
- このアプリは、概要を表示するには評価件数やレビュー件数が不十分です。
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!
デベロッパである“Pratik Zinzala”は、アプリのプライバシー慣行に、以下のデータの取り扱いが含まれる可能性があることを示しました。詳しくは、 デベロッパプライバシーポリシー を参照してください。
ユーザのトラッキングに使用されるデータ
次のデータは、他社のアプリやWebサイト間でユーザをトラッキングする目的で使用される場合があります。
- ID
- 使用状況データ
ユーザに関連付けられないデータ
次のデータは収集される場合がありますが、ユーザの識別情報には関連付けられません。
- ID
- 使用状況データ
- 診断
アクセシビリティ
デベロッパは、このアプリがサポートしているアクセシビリティ機能をまだ示していません。 詳しい情報
情報
- 販売元
- Pratik Zinzala
- サイズ
- 47 MB
- カテゴリ
- ミュージック
- 互換性
iOS 18.2以降が必要です。
- iPhone
iOS 18.2以降が必要です。 - iPad
iPadOS 18.2以降が必要です。 - Mac
macOS 15.2以降とApple M1以降のチップを搭載したMacが必要です。 - Apple Vision
visionOS 2.2以降が必要です。
- iPhone
- 言語
- 英語
- 年齢制限
4+
- 4+
- 含む
広告
- 著作権
- Copyright © 2026 Spek All rights reserved.
