# bs2b

Improve headphone listening of stereo audio records using the bs2b library. It does so by mixing the left and right channel in a way that simulates a stereo speaker setup while using headphones.

## Example pipelines

     gst-launch-1.0 audiotestsrc ! "audio/x-raw,channel-mask=(bitmask)0x1" ! interleave name=i ! bs2b ! autoaudiosink audiotestsrc freq=330 ! "audio/x-raw,channel-mask=(bitmask)0x2" ! i.

Play two independent sine test sources and crossfeed them.

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──GstBaseTransform
                        ╰──GstAudioFilter
                            ╰──bs2b

## Implemented interfaces

    GstPreset

## Factory details

Authors: – Christoph Reiter <reiter.christoph></reiter.christoph>

Classification: – `Filter/Effect/Audio`

Rank – none

Plugin – bs2b

Package – GStreamer Bad Plug-ins

## Pad Templates

### `sink`

    audio/x-raw:
             format: { S8, U8, S16LE, S16BE, U16LE, U16BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, F32LE, F32BE, F64LE, F64BE }
               rate: [ 2000, 384000 ]
           channels: 2
       channel-mask: 0x0000000000000003
             layout: interleaved
    audio/x-raw:
           channels: 1

Presence – always

Direction – sink

Object type – GstPad

### `src`

    audio/x-raw:
             format: { S8, U8, S16LE, S16BE, U16LE, U16BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, F32LE, F32BE, F64LE, F64BE }
               rate: [ 2000, 384000 ]
           channels: 2
       channel-mask: 0x0000000000000003
             layout: interleaved
    audio/x-raw:
           channels: 1

Presence – always

Direction – src

Object type – GstPad

## Properties

### fcut

    “fcut” gint

Low-pass filter cut frequency (Hz)

Flags : Read / Write

Default value : 700

### feed

    “feed” gint

Feed Level (dB/10)

Flags : Read / Write

Default value : 45

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