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Filesystems, Disks and Memory

Unix Raw file system

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Special Forums Hardware Filesystems, Disks and Memory Unix Raw file system
# 8  
Old 08-06-2007
Hello preethi,

this is my understanding on your question:
you need a device on which a filesystem should be created but the device should not be a mounted device.

to achieve this, you should be creating a partition using LVM or FDisk , CFDisk etc tools and format the partition using the mkfs tool with what ever file system you require.
leave this partition without mounting!!

note: creating a partition may demand for a reboot of the system in OLD versions of Linux/Unix.

-ilan
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speexenc

SPEEXENC(1)							   User Commands						       SPEEXENC(1)

NAME

       speexenc - The reference implementation speex encoder.

SYNOPSIS

       speexenc [options] input_file output_file

DESCRIPTION

       Encodes input_file using Speex. It can read the WAV or raw files.

   input_file can be:
       filename.wav
	      wav file

       filename.*
	      Raw PCM file (any extension other than .wav)

       -      stdin

   output_file can be:
       filename.spx
	      Speex file

       -      stdout

OPTIONS

       -n, --narrowband
	      Narrowband (8 kHz) input file

       -w, --wideband
	      Wideband (16 kHz) input file

       -u, --ultra-wideband "Ultra-wideband" (32 kHz) input file

       --quality n
	      Encoding quality (0-10), default 8

       --bitrate n
	      Encoding bit-rate (use bit-rate n or lower)

       --vbr  Enable variable bit-rate (VBR)

       --abr rate
	      Enable average bit-rate (ABR) at rate bps

       --vad  Enable voice activity detection (VAD)

       --dtx  Enable file-based discontinuous transmission (DTX)

       --comp n
	      Set encoding complexity (0-10), default 3

       --nframes n
	      Number of frames per Ogg packet (1-10), default 1

       --comment
	      Add the given string as an extra comment. This may be used multiple times

       --author
	      Author of this track

       --title
	      Title for this track

       -h, --help
	      This help

       -v, --version
	      Version information

       -V     Verbose mode (show bit-rate)

   Raw input options:
       --rate n
	      Sampling rate for raw input

       --stereo
	      Consider raw input as stereo

       --le   Raw input is little-endian

       --be   Raw input is big-endian

       --8bit Raw input is 8-bit unsigned

       --16bit
	      Raw input is 16-bit signed

       Default raw PCM input is 16-bit, little-endian, mono

       More information is available from the Speex site: http://www.speex.org

       Please report bugs to the mailing list `speex-dev@xiph.org'.

COPYRIGHT

       Copyright (C) 2002 Jean-Marc Valin

speexenc version 1.1						  September 2003						       SPEEXENC(1)