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.TH "ecatools" "1" "12\&.11\&.2005" "" "Multimedia software"
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ecatools \- audio processing utils based on ecasound
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\fBecaconvert\fP \&.extension file1 [ file2 \&.\&.\&. fileN ]
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\fBecafixdc\fP file1 [ file2 \&.\&.\&. fileN ]
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\fBecalength\fP file1 [ file2 \&.\&.\&. fileN ]
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\fBecamonitor\fP [host][:port]
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\fBecanormalize\fP file1 [ file2 \&.\&.\&. fileN ]
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\fBecaplay\fP [-dfhklopq] [ file1 file2 \&.\&.\&. fileN ]
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\fBecasignalview\fP [ options ] [ input ] [ output ]
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Ecatools are simple command line utils for audio file processing\&.
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Each tool is designed to perform one specific operation\&. Most of
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the tools also support batch processing\&.
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A tool for converting a set of files to a common target format\&.
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This target format is given as the first command line
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argument, and its syntax is \fI\&.ext\fP\&.
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A simple command-line tool for fixing DC-offset\&.
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See the separate ecalength(1) man page\&.
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Ecamonitor is a util program that can be used
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to monitor an active ecasound session\&. Ecamonitor
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is able to show information about the current
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chainsetup such as list of inputs, outputs,
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current position, effects, the engine status
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and numerous other things\&.
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By default ecamonitor will try to connect
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to IP4 address "localhost", to port "2868"\&.
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A different address can be specified when
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starting ecamonitor, for example
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"ecamonitor foo\&.mynetwork\&.com" or
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"ecamonitor foo\&.mynetwork\&.com:4500"\&.
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To enable inbound connections, ecasound has to be
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started with the \fI--daemon\fP option\&. Ecamonitor is
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implemented in Python using the NetECI API\&.
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Ecanormalize is a command-line tool for normalizing audio
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files to utilize the full available sample resolution\&. Ecanormalize
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first finds out how much the input file can be amplified without
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clipping and if there is room for increase, a static gain will
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be applied to the file\&.
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Ecaplay is a command-line tool for playing audio files\&. Ecaplay
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uses the libecasound engine and is thus able to handle all audio formats
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supported by the library\&.
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Files can be selected for playback either by specifying the
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filenames on the command-line, or by using the playlist
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mechanism\&. In playlist mode, files can be added to the playlist
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using the \fI-q\fP option\&. The \fI-p\fP option can then be used
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to play all tracks on the playlist\&. Ecaplay will repeat the
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playlist tracks until explicitly stopped (with double Ctrl-C)\&.
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Playlist can be flushed with \fI-f\fP and its contents listed
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with \fI-l\fP option\&.
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If not otherwise specified, ecaplay will use the audio output device
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specified in \fI~/\&.ecasound/ecasoundrc\fP for playback\&. A different
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output device can be selected with \fIECAPLAY_OUTPUT_DEVICE\fP shell
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environment variable or with the \fI-o:output_device\fP command-line
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Playback can be stopped at any time with Ctrl-C\&. If multiple
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files are played, first Ctrl-C will stop the current file and move
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on to play the next one\&. Issuing Ctrl-C twice (within one second),
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will cause ecaplay to exit\&.
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Set libecasound debug level\&. See ecasound(1)\&.
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Flush the playlist contents\&. See also
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options \fI-l, -p and -q\fP\&.
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Print usage information and exit\&.
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Skip \&'number\&' of files\&.
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List the current playlist contents to stdout\&. See also
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options \fI-f, -p and -q\fP\&.
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.IP "-o:output_device"
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Use \&'output_device\&' instead of the default output device
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(as specified in \fI~/\&.ecasound/ecasoundrc\fP)\&. Syntax is same
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as used by "-o" ecasound option (see ecasound(1) man page)\&.
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This option overrides the \fIECAPLAY_OUTPUT_DEVICE\fP environment
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variable (more info below)\&.
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Play tracks in the playlist (in looped mode)\&. See also
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options \fI-f, -l and -q\fP\&.
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Queue new tracks to the playlist\&. All filenames given on
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the command-line will be added to the the playlist\&. It is
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possible to queue new tracks while another instance of
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ecaplay is using the playlist\&. See also options \fI-f, -l
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Ecasignalview is meant for monitoring signal amplitude and peak
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statistics\&. It accepts the following options:
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The first option not starting with a \&'-\&' is interpreted
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as an input string\&. This can be a device or a filename\&. All formats
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supported by libecasound are accepted\&. Defaults to \&'/dev/dsp\&'\&.
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Similarly to input, second option not starting with a \&'-\&'
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is interpreted as output\&. Defaults to \&'null\&'\&.
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Buffersize in sample frames\&. Defaults to 128\&.
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Enable cumulative mode\&. Counters are not reseted after refresh\&.
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.IP "-f:format_string"
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Specify default audio format\&. See ecasound(1) for details\&.
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Specify screen refresh rate in milliseconds\&.
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Use linear scale for showing audio sample amplitude\&.
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Use logarithmic scale for showing audio sample amplitude\&.
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.IP "-G, -B, -M*, -r, -z"
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Ecasound options use to modify the engine behaviour, see
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ecasound(1) manpage for details\&.
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When ecasignalview is running, the following keyboard
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commands can be used to control the operation (requires
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system support for UNIX terminal interface control):
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Reset statistics (max-peak, avg-amplitude and clipped
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Quit ecasignalview\&.
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It is also possible to reset the max-peak and clipped-samples
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counters by sending a SIGHUP signal to the process (i\&.e\&.
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from another console: "killall -v -HUP ecasignalview")\&.
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More complete documentation for ecasignalview can be found
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from "Ecasound User\&'s Guide" (see \&'\&'http://www\&.eca\&.cx/ecasound
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-> Documentation\&'\&')\&.
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Path to the ecasound executable\&. Used by many ecatools\&.
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\fIECAPLAY_OUTPUT_DEVICE\fP
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Device ecaplay should use for audio output\&. Same syntax
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as for ecaplay/ecasound "-o" option\&.
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\fI~/\&.ecasound/ecasoundrc\fP
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The default ecasound resource file\&. See ecasoundrc(5)
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\fI~/\&.ecasound/ecaplay_queue\fP
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File used to store the ecaplay playlist (one track per
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line with full path)\&.
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ecasound (1), ecalength(1), "HTML docs in the Documentation subdirectory"
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Kai Vehmanen, <kvehmanen -at- eca -dot- cx <kvehmanen -at- eca -dot- cx>>
added
removed
Documentation/ecaplay.1
