---
name: "ac3dec"
section: "1"
platform: "linux"
package: "alsa-tools"
version: "1.0.25-2"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/ac3dec"
---

# ac3dec(1)

AC-3 stream decoder

## NAME

ac3dec - AC-3 stream decoder

## SYNOPSIS

**ac3dec** \[*option*...\] \[*file*...\]

## DESCRIPTION

This manual page documents briefly the **ac3dec** command.

This manual page was written for the Debian distribution because the original program does not have a manual page. Instead, it has documentation in the GNUInfo format; see below.

## OPTIONS

- **-h** \| **--help**

  Prints a short help message.

- **-v** \| **--version**

  Print the version of the program.

- **-D** *NAME* \| **--device** *NAME*

  Select PCM by *NAME*.

- **-c** *ID* \| **--card** *ID*

  Select card for bellow modes.

- **-4** \| **--4ch**

  Four channels mode.

- **-6** \| **--6ch**

  Six channels mode.

- **-C** \| **--iec958c**

  Raw IEC958 (S/PDIF) consumer mode.

- **-P** \| **--iec958p**

  Raw IEC958 (S/PDIF) professional mode.

- **-R** \| **--iec958r**

  Raw IEC958 (S/PDIF) PCM.

- **-Z** *#* \| **--zero** *#*

  Add *#* zero-AC3-frames before stream.

- **-q** \| **--quit**

  Quit mode.

## SEE ALSO

**extract\_ac3**(1).

## AUTHOR

This manual page was written by Mikael Magnusson \<mikma@users.sourceforge.net\> for the Debian system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 or any later version published by the Free Software Foundation.

On Debian systems, the complete text of the GNU General Public License can be found in */usr/share/common-licenses/GPL*.