---
name: "speexenc"
section: "1"
platform: "linux"
package: "speex"
version: "1.2.1-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/speexenc"
---

# speexenc(1)

The reference implementation speex encoder.

## NAME

speexenc - The reference implementation speex encoder.

## SYNOPSIS

**speexenc** \[*options*\] *input\_file output\_file*

## DESCRIPTION

Encodes input\_file using Speex. It can read the WAV or raw files.

### input\_file can be:

- filename.wav

  wav file

- filename.\*

  Raw PCM file (any extension other than .wav)

- \-

  stdin

### output\_file can be:

- filename.spx

  Speex file

- \-

  stdout

## OPTIONS

- **-n**, **--narrowband**

  Narrowband (8 kHz) input file

- **-w**, **--wideband**

  Wideband (16 kHz) input file

**-u**, **--ultra-wideband** "Ultra-wideband" (32 kHz) input file

- **--quality** n

  Encoding quality (0-10), default 8

- **--bitrate** n

  Encoding bit-rate (use bit-rate n or lower)

- **--vbr**

  Enable variable bit-rate (VBR)

- **--abr** rate

  Enable average bit-rate (ABR) at rate bps

- **--vad**

  Enable voice activity detection (VAD)

- **--dtx**

  Enable file-based discontinuous transmission (DTX)

- **--comp** n

  Set encoding complexity (0-10), default 3

- **--nframes** n

  Number of frames per Ogg packet (1-10), default 1

- **--comment**

  Add the given string as an extra comment. This may be used multiple times

- **--author**

  Author of this track

- **--title**

  Title for this track

- **-h**, **--help**

  This help

- **-v**, **--version**

  Version information

- **-V**

  Verbose mode (show bit-rate)

### Raw input options:

- **--rate** n

  Sampling rate for raw input

- **--stereo**

  Consider raw input as stereo

- **--le**

  Raw input is little-endian

- **--be**

  Raw input is big-endian

- **--8bit**

  Raw input is 8-bit unsigned

- **--16bit**

  Raw input is 16-bit signed

Default raw PCM input is 16-bit, little-endian, mono

More information is available from the Speex site: http://www.speex.org

Please report bugs to the mailing list \`speex-dev@xiph.org'.

## COPYRIGHT

Copyright © 2002 Jean-Marc Valin