---
name: "dbin"
section: "1"
platform: "linux"
package: "dbmix"
version: "0.9.8-8"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/dbin"
---

# dbin(1)

Connect sound card input to DB Fourier Synthesis daemon

## NAME

dbin - Connect sound card input to DB Fourier Synthesis daemon

## SYNOPSIS

**dbin** \[*options*\]\

## DESCRIPTION

The **dbin** tool allows to connect a sound card's input channel to **dbfsd**.  Both **dbin** and **dbfsd** are part of the DBMix project, a digital audio mixing system.  **dbin** is needed to mix in data from a microphone, or from an external audio device plugged into the line-in jack.

The audio device used by **dbin** must support full-duplex operation. Also, this device must not be used for the master or cue output of **dbfsd**.  Otherwise, **dbin** will output but an empty audio stream.

## OPTIONS

- **-8**

  Input data comprises of PCM-coded 8bit unsigned samples. (Default: 16bit signed samples.)

- **-a** *dev*

  Connect to audio device *dev*.  (Default: /dev/dsp.)

- **-c** *n*

  Connect to channel *n* of **dbfsd**.  (Default: first channel available.)

- **-d**

  Print out debug messages to console.  (Default: debugging disabled.)

- **-h**

  Print summary of available options.

- **-l**

  Audio input is a line-in source.  (Default: input is a microphone source.) source.)

- **-m**

  Input data is a mono stream.  (Default: interleaved stereo stream.)

- **-r** *rate*

  Input data is sampled at *rate* Hertz.  (Default: 44100Hz.)

- **-s**

  Send output data to stdout.  (Default: Send output to **dbfsd**.) *dbfsd*.

## SEE ALSO

[**dbcat**(1)](/dbcat/1.md), [**dbfsd**(1)](/dbfsd/1.md), [**dbmixer**(1)](/dbmixer/1.md), [**dbmix**(7)](/dbmix/7.md).

## AUTHOR

This manual page was written by Daniel Kobras \<kobras@debian.org\>, for the Debian GNU/Linux system (but may be used by others).  It is heavily based on DBMix's README file written by Robert Michael S Dean.