Spectrogrammer

Spectrum Analyzer

Features

• Runs on Android and Linux
• Frequency analysis
  • 4096 bands FFT
  • configurable
    • decay
    • averaging
• Visualization
  • Spectrogram
  • Waterfall
    • Uses a magma heatmap
    • When hold is active a binary heatmap is used to shows above/below values
  • Linear / Log scales for both axis
  • Hold function to capture refrence levels
    • Save/load/delete/rename for comparing
• High performance, developed entirely in C/C++

Screenshot

Building

# clone with
git clone https://github.com/aguaviva/Spectrogrammer.git --recurse-submodules

# Build for Linux → Spectrogrammer-x86_64 (host arch suffix)
make

# Build for Android → Spectrogrammer-arm64-v8a.apk (default)
make BUILD_ANDROID=y

# 32-bit ARM APK → Spectrogrammer-armeabi-v7a.apk
make BUILD_ANDROID=y ARCH=armeabi-v7a

# Both ABIs as separate APKs
make BUILD_ANDROID=y ANDROID_ABIS="arm64-v8a armeabi-v7a"

# Install and run the default (arm64) Android build
make BUILD_ANDROID=y run

Notes/stuff I need help with:

• Windows support
• should prob use Cnlohr audio libs :)

credits

• cnlohr for rawdrawandroid
• mborgerding for kissfft