---
name: "sndfile-spectrogram"
section: "1"
platform: "linux"
package: "sndfile-tools"
version: "1.5-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/sndfile-spectrogram"
---

# sndfile-spectrogram(1)

generate a spectrogram from an input sound file

## NAME

sndfile-spectrogram - generate a spectrogram from an input sound file

## SYNOPSIS

**sndfile-spectrogram** \[options\] \<sound file\> \<img width\> \<img height\> \<png name\>

## DESCRIPTION

sndfile-spectrogram reads a single channel sound file and generates a spectrogram which is written to a PNG file with specified image height and width.

The optional parameters allow the user to specify the dynamic range of the spectrogram plot and/or to disable the drawing of borders, scales, heat map and title. Run "sndfile-spectrogram --help" for more information.

The input file is read using libsndfile (http://www.mega-nerd.com/libsndfile/), the spectrogram is calculated with the help of libfftw and the spectrogram is rendered and written to the output file using libcairo.

## AUTHOR

This manual page was written by Erik de Castro Lopo \<erikd@mega-nerd.com\>.