Upload your audio files and visualize their frequency spectrum over time
Made with β₯ by SquidWTF & RaspberryPi
π Choose Audio File or Drag & Drop
Spectrum Analysis
Resolution:
Standard
1100Γ600
High
1650Γ900
Maximum
2200Γ1200
Color Scheme:
×
π΅ Supported Audio Formats
β οΈ Important Notice
This analyzer supports various audio formats with different levels of accuracy for metadata detection. Native parsing provides the highest accuracy for sample rates and technical information, while browser fallback may perform resampling.
Format
File Extension
Accuracy
Sample Rate Detection
Features
WAV
.wav
Native
β Header-Parsing
Uncompressed, all sample rates and bit depths
FLAC
.flac
Native
β STREAMINFO Block
Lossless compression, high resolution audio
MP3
.mp3
Native
β Frame Header Parsing
VBR/CBR detection, Xing/VBRI header support
OGG Vorbis
.ogg
Native
β Vorbis Identification
Open source format, variable bitrate
M4A/AAC
.m4a, .aac
Native
β MP4/ADTS Header
iTunes format, efficient compression
AIFF
.aiff, .aif
Native
β COMM Chunk Parsing
Apple format, uncompressed
OPUS
.opus
Browser
β οΈ AudioContext (48kHz)
Modern codec, always 48kHz internally
WebM
.webm
Browser
β οΈ AudioContext
Web format, Matroska container
WMA
.wma
Browser
β οΈ AudioContext
Microsoft format (browser dependent)
π Accuracy Explanation
Native Parsing: Direct binary file analysis for maximum accuracy. Sample rates, bit depths, and metadata are read directly from file headers without browser resampling.
Browser Fallback: Uses AudioContext API which may resample audio to match browser/system sample rate. Metadata accuracy depends on browser implementation.
π― Important Information
Native Parsing provides MediaInfo-level accuracy for supported formats
Browser Fallback may show different sample rates due to internal resampling
All Formats support full spectrum analysis regardless of detection method
Complex Containers (MKV, AVI with audio) fall back to browser decoding
High-precision frequency display is ensured at all resolutions through intelligent downsampling