adinrec
Contents
Copyright
Copyright (c) 1997-2000 Information-technology Promotion Agency, Japan
Copyright (c) 1991-2008 Kawahara Lab., Kyoto University
Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology
Copyright (c) 2005-2008 Julius project team, Nagoya Institute of Technology
Description
adinrec opens an audio stream, detects an utterance input and store it to a specified file. The utterance
detection is done by level and zero-cross thresholds. Default input device is microphone, but other audio
input source, including Julius A/D-in plugin, can be used by using "-input" option.
The audio format is 16 bit, 1 channel, in Microsoft WAV format. If the given filename already exists, it
will be overridden.
If filename is "-" , the captured data will be streamed into standard out, with no header (raw format).
Environment Variables
ALSADEV
Device name string for ALSA. (default: "default")
AUDIODEV
Device name string for OSS. (default: "/dev/dsp")
LATENCY_MSEC
Input latency of microphone input in milliseconds. Smaller value will shorten latency but sometimes
make process unstable. Default value will depend on the running OS.
License
The same as Julius.
10/02/2008 ADINREC(1)
Name
adinrec
- record audio device and save one utterance to a file
Options
adinrec uses JuliusLib and adopts Julius options. Below is a list of valid options.
adinrecspecificoptions-freqHz
Set sampling rate in Hz. (default: 16,000)
-raw
Output in raw file format.
JuliusLiboptions-input {mic|rawfile|adinnet|stdin|netaudio|esd|alsa|oss}
Choose speech input source. Specify 'file' or 'rawfile' for waveform file. On file input, users will
be prompted to enter the file name from stdin.
´mic' is to get audio input from a default live microphone device, and 'adinnet' means receiving
waveform data via tcpip network from an adinnet client. 'netaudio' is from DatLink/NetAudio input, and
'stdin' means data input from standard input.
At Linux, you can choose API at run time by specifying alsa, oss and esd.
-chunk_sizesamples
Audio fragment size in number of samples. (default: 1000)
-lvthres
Level threshold for speech input detection. Values should be in range from 0 to 32767. (default: 2000)
-zcthres
Zero crossing threshold per second. Only input that goes over the level threshold (-lv) will be
counted. (default: 60)
-headmarginmsec
Silence margin at the start of speech segment in milliseconds. (default: 300)
-tailmarginmsec
Silence margin at the end of speech segment in milliseconds. (default: 400)
-zmean
This option enables DC offset removal.
-smpFreqHz
Set sampling rate in Hz. (default: 16,000)
-48
Record input with 48kHz sampling, and down-sample it to 16kHz on-the-fly. This option is valid for
16kHz model only. The down-sampling routine was ported from sptk. (Rev. 4.0)
-NAdevicename
Host name for DatLink server input (-inputnetaudio).
-adportport_number
With -inputadinnet, specify adinnet port number to listen. (default: 5530)
-nostrip
Julius by default removes successive zero samples in input speech data. This option stop it.
-Cjconffile
Load a jconf file at here. The content of the jconffile will be expanded at this point.
-plugindirdirlist
Specify which directories to load plugin. If several direcotries exist, specify them by
colon-separated list.
See Also
julius ( 1 ) ,
adintool ( 1 )
Synopsis
adinrec [options...] {filename}
