---
name: "ecasoundrc"
section: "5"
platform: "linux"
package: "ecasound"
version: "2.9.3-19"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ecasoundrc"
---

# ecasoundrc(5)

ecasound rcfile

## NAME

ecasoundrc - ecasound rcfile

## SYNOPSIS

{prefix}/share/ecasound/ecasoundrc (for instance ’/usr/local/share/ecasound/ecasoundrc’) $HOME/.ecasound/ecasoundrc

## DESCRIPTION

**ecasoundrc** is the main configuration file for ecasound.  Any user-specific modification should be done to  $HOME/.ecasound/ecasoundrc, not to the global resource file. Ecasound  also allows one to disable the normal policy and only read from a specific resource file (see ecasound (1) and documentation for the **-R** option).

The format is quite simple. One line consists of  a configuration variable and its value. Variable and value  are separated with either ’=’ or ’ ’. Lines beginning with a "#" are ignored (comment lines).

## VARIABLES

- midi-device

  MIDI-device. If the device name is given in *rawmidi,/dev/midi\**  format, OSS/Linux or OSS/Lite drivers are used.  Device *rawmidi,/dev/snd/midiCxDy* opens an ALSA raw-MIDI  device with card number ’x’ and device number ’y’.  See ecasound (1) man page (the ’-Md option) for more info. Defaults to *rawmidi,/dev/midi*.

-

  - default-output

  Output device to use by default. If a chainsetup with zero outputs, but with one or more inputs, is connected, a default output is added and all the chains are connected to it. If the special-case value ’autodetect’ is specified, ecasound will try to auto-detect  a suitable device (JACK -\> ALSA -\> OSS -\> rtnull).  Defaults to *autodetect*.

-

  - default-audio-format

  Default values for sample format, channel count, sampling rate and channel interleaving. Syntax is the same as used by ecasound’s *-f* option (see ecasound (1)).  Defaults to *s16\_le,2,44100,i*.

-

  - default-to-precise-sample-rates

  Whether to ignore sample rate differences (and possibly avoid  resampling). Currently only affects OSS-devices. Defaults to *false*.

-

  - default-mix-mode

  If *default-mix-mode* is *sum*, engine will mix multiple channels into one output channel by summing all input channels. In mode *avg*,  mixing is done by taking the average of all input channels. The *avg* mode is safe from clipping, while *sum* is closer to the way analog mixers work. Defaults to *avg*.

-

  - bmode-defaults-nonrt

  Selects the default parameters to use with buffering  mode ’nonrt’ (other modes are ’rt’ and ’rtlowlatency).  Parameters are given as a comma-separated tuple of values: 1) buffersize (number,-b), 2) raised priority (true/false,-r),  3) sched\_priority (number,-r:X), 4) double buffering (true/false,-z:db), 5) db-bufsize (number,-z:db,X), and 6) max intbuf (true/false,-z:intbuf). Defaults to *1024,false,50,false,100000,true*.

-

  - bmode-defaults-rt

  See ’bmode-defaults-nonrt’. Defaults to  *1024,true,50,true,100000,true*.

-

  - bmode-defaults-rtlowlatency

  See ’bmode-defaults-nonrt’. Defaults to  *256,true,50,true,100000,false*.

-

  - resource-directory

  Directory for global ecasound configuration files.  Defaults to *{prefix-dir}/share/ecasound*. Note! User-specific resource files can be be stored  to ’$(HOME)/.ecasound/’. For instance you can  add your own presets definitions to  ’$(HOME)/.ecasound/effect\_presets’.

-

  - resource-file-genosc-envelopes

  Configuration file for generic oscillators. Is located in the  resource directory. Defaults to *generic\_oscillators*.

-

  - resource-file-effect-presets

  Configuration file for effect presets. Is located in the  resource directory. Defaults to *effect\_presets*.

-

  - ladspa-plugin-directory

  Directory containing LADSPA effect plugins. Defaults to *{prefix-dir}/lib/ladspa*. If environment variable *LADSPA\_PATH* exists, directories specified in it are automatically searched for plugins. Note! To match the syntax of the *LADSPA\_PATH* environment  variable, ’ladspa-plugin-directory’ can contain multiple directories, separated by ’:’ characters.

-

  - ext-cmd-text-editor

  If *ext-cmd-text-editor-use-getenv* is *false* or "EDITOR"  is null, value of this field is used.

-

  - ext-cmd-text-editor-use-getenv

  Should ecasound try to query environment variable "EDITOR". Defaults to *true*.

-

  - ext-cmd-mp3-input

  Command for starting mp3 input. Ecasound expects to read signed, 16bit, little-endian stereo audio samples from its standard input. Ecsound will query other audio format parameters by parsing  the mp3 file header. Before execution, %f is replaced with path to the input mp3. If exists, "%o" is replaced with he start offset in mp3 frames. Double-quotes and backslash-espacing  can be used to include white-space to individual parameters. By default, *mpg123* is launched.

-

  - ext-cmd-mp3-output

  Command for starting mp3 output. Ecasound will write stereo,  signed, 16bit, little-endian samples to standard output. Sample rate is configurable. Before execution, %f is replaced with  path to the output mp3, %S with sample rate in kHz, and  %B with encoding bitrate in kbps. Double-quotes and  backslash-espacing can be used to include white-space to  individual parameters. By default Ecasound will try to launch *lame*. As a special exception (added to Ecasound 2.7.0), if the output program is "lame" and options  include "--big-endian", Ecasound will detect this and output big-endian samples.

-

  - ext-cmd-ogg-input

  Command for starting Ogg Vorbis input. Ecasound expects that audio samples are written to standard output. It should be noted that Ecasound is not able to query the audio format parameters from ogg files, so these need to be set manually by the user. Before execution, %f is replaced with path to the input ogg.  Double-quotes and backslash-espacing can be used to include white-space  to individual parameters. By default Ecasound will try to launch (ogg123).

-

  - ext-cmd-ogg-output

  Command for starting Ogg Vorbis output. Ecasound will write samples in little-endian format to standard output. Other  audio parameters are configurable. Before execution, %f is replaced with path to the output ogg, %c, %s and %b with matching audio format parameters, and %B with encoding bitrate in kbps. Double-quotes and backslash-espacing can be used to include white-space to  individual parameters. By default Ecasound will try to launch (oggenc).

-

  - ext-cmd-mikmod

  Command for starting mikmod input. Ecasound expects that  signed, 16bit, stereo audio samples are written to standard  output. Before execution, %f is replaced with  file path, and %s with selected sample rate. Double-quotes  and backslash-espacing can be used to include white-space to  individual parameters. By default Ecasound will try to launch *mikmod*.

-

  - ext-cmd-timidity

  Command for starting timidity++ input. Ecasound expects that signed, 16bit, stereo audio samples are written to standard output. Before execution, %f is replaced with file path, and %s with sample rate. Double-quotes and backslash-espacing can  be used to include white-space to individual parameters. By default Ecasound will try to launch *timidity*.

-

  - ext-cmd-flac-input

  Command for starting FLAC input. Ecasound expects that audio samples are written to standard output. It should be noted that Ecasound is not able to query the audio format parameters from FLAC files, so these need to be set manually by the user.  Before execution, %f is replaced with path to the input FLAC file. Double-quotes and backslash-espacing can be used to include  white-space to individual parameters. By default Ecasound will try to launch (flac).

-

  - ext-cmd-flac-output

  Command for starting FLAC output. Ecasound will write samples to standard output. All audio parameters are configurable. Before execution, %f is replaced with path to the output flac, %c, %b and %s with matching audio format parameters, %I with either ’signed’ or ’unsigned’, and %E with either ’little’ or ’big’. Double-quotes and backslash-espacing  can be used to include white-space to individual parameters. By default  Ecasound will try to launch (flac).

-

  - ext-cmd-aac-input

  Command for starting AAC input. Ecasound expects that signed, 16bit, stereo, big-endian audio samplesare written to standard  output. It should be noted that	Ecasound is not able to query  the input sample rate, so this needs to be set manually by the user.  Before execution, %f is replaced with path to the input AAC file. Note! FAAC must be compiled with MP4 support. Double-quotes  and backslash-espacing can be used to include white-space to  individual parameters. By default Ecasound will try to  laucnh *faad*.

-

  - ext-cmd-aac-output

  Command for starting AAC output. Ecasound will write big-endian audio samples to standard output. All other audio parameters are configurable. Before execution, %f is replaced with path to the output AAC file, %c, %b and %s with matching audio format  parameters. Note! FAAC must be compiled with MP4 support. Double-quotes  and backslash-espacing can be used to include white-space to  individual parameters. By default Ecasound will try to launch *faac*.

-

  ## DEPRECATED

- ext-cmd-wave-editor

  -

  ## SEE ALSO

ecasound (1), ecatools (1), ecasound-iam (1)

## AUTHOR

Kai Vehmanen, \<kvehmanen -at- eca -dot- cx \<kvehmanen -at- eca -dot- cx\>\>
