---

Manual Reference Pages  - FBANK (1)

---

NAME

fbank - Print centre-frequency and bandwidth information for a given gammatone filterbank.

CONTENTS

Syntax
Description
Copyright

fbank [options] [file]

Print centre-frequency and bandwidth information for a given gammatone filterbank on the stdout.

Parameters specifying a filterbank may be given as arguments (channels, mincf, maxcf, dencf, bwmin, quality), or may be read from an AIM output header if the option ‘input=on’.

Centre-frequency and bandwidth information is printed for a selected range of filterbank channels, specified using the ‘freq’ option:

            freq=a[-b]

where ‘a’ and ‘b’ are channel numbers: 0,2,3,... (the lowest centre-frequency channel has the lowest channel number, 0). The upper limit ‘b’ is optional, and when it is missing then the range of channels is a single channel, otherwise ‘a’ and ‘b’ are inclusive limits. The strings "min" and "max" are recognised as extreme limits ("min" is the lowest frequency channel, "max" is the highest frequency channel). Either range limit can take frequency units (Hz or kHz), in which case it is converted to a channel number using the "closest" channel number in the filterbank to the specified centre-frequency.

For example:

        freq=5         channel 5
        freq=1kHz      channel number with centre-freq closest to 1kHz
        freq=max       highest centre-freq channel
        freq=10-max    channel 10 to the highest centre-freq channel
        freq=min-15    channel 0 to 15

options hdr edframe

Copyright (c) Applied Psychology Unit, Medical Research Council, 1995

Permission to use, copy, modify, and distribute this software without fee is hereby granted for research purposes, provided that this copyright notice appears in all copies and in all supporting documentation, and that the software is not redistributed for any fee (except for a nominal shipping charge). Anyone wanting to incorporate all or part of this software in a commercial product must obtain a license from the Medical Research Council.

The MRC makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.