CH_UTT(1) BSD General Commands Manual CH_UTT(1)NAME
ch_utt -- change/copy utterance file
SYNOPSIS
ch_utt [-h] [-f feature] [-o output file] [-otype -file -type] [-sysdir -directory] input file
DESCRIPTION
ch_utt copies an input utterance file to an output file, optionally changing its format or performing other operations along the way.
The following option flags are recognized:
-h Print a short summary of options to standard output
-f feature
Feature to use as item ID when merging utterances.
-o output file
Output file name
-otype -file -type
Output file type. For the full list of supported file formats, see the output of the -h option.
-sysdir -directory
Look for unqualified system entities in this directory
SEE ALSO ch_track(1)ch_lab(1)Edinburgh Speech Tools April 5, 2001 Edinburgh Speech Tools
Check Out this Related Man Page
NA_RECORD(1) BSD General Commands Manual NA_RECORD(1)NAME
na_record -- record waveform from audio device
SYNOPSIS
na_record [-h] [-f sampling rate] [-audiodevice device] [-time seconds] [-o file] [-otype type] [-ostype sample type] [-F sample rate]
[-obo MSB | LSB | native] [-oswap] [-p audio device protocol]
DESCRIPTION
na_record records digital audio data from the system's audio input device and writes it to the specified file. It supports a variety of out-
put file formats and native audio devices.
The following option flags are recognized:
-h Prints a short summary of usage to standard output.
-f sampling rate
Sets the input sampling rate (in samples per second, i.e. Hz). Not all devices support all sampling rates, so it may be desire-
able to set this separately from the output sampling rate.
-audiodevice device
Sets the audio device to record from, if supported by the audio protocol chosen (e.g. /dev/dsp, /dev/audio)
-time seconds
Stops recording after the specified number of seconds.
-o file
Writes sound output to the specified file
-otype type
Specifies the file format to use for output. Supported types currently include nist, est, dsps, snd, riff, aiff, audlab, raw, and
ascii. The -h flag will show the most accurate list. The default type is nist.
-F sampling rate
Sets the output sampling rate (again, in samples per second, i.e. Hz). If this differs from the input sampling rate, resampling
will be done. Defaults to 16000Hz.
-obo byte order
Sets the output byte order. Supported values are MSB, LSB, and native. Many file formats have their own byte order, or are byte
order independent, so this isn't tremendously useful except for raw data. The default is the native byte order for the system
audio device.
-oswap
Swap bytes when saving to output.
-ostype sample type
Sets the sample type of the output. Suported values are short, mulaw, byte, or ascii. Again, this is usually implied by the file
format, so should only be used for raw data. The default is short (i.e. 16-bit PCM).
-p audio device protocol
Selects an audio device protocol (i.e. type of audio device) to use. This varies between different installations of Speech
Tools, but defaults to the most 'native' audio device, usually Open Sound System on Linux and *BSD and /dev/audio on Solaris.
ENVIRONMENT
NA_PLAY_PROTOCOL
Audio protocol to use (as in the -p flag)
NA_PLAY_HOST
Host to record audio from when using a network audio protocol.
EXAMPLES
To record five seconds of audio from /dev/dsp1 (on Linux) to foo.wav in RIFF format at 32kHz:
$ na_record -time 5 -audiodevice /dev/dsp1 -o foo.wav -otype RIFF -f 32000
To record one second of audio to bar.wav in raw format in 8kHz mu-law:
$ na_record -time 1 -o bar.wav -otype raw -ostype mulaw -f 8000
BUGS
The -time argument only accepts integer values (though the usage message implies otherwise)
SEE ALSO na_play(1)Edinburgh Speech Tools April 4, 2001 Edinburgh Speech Tools