---
name: "sphinx_fe.1"
section: "1"
platform: "linux"
package: "sphinxbase-utils"
version: "0.8+5prealpha+1-3+b1"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/sphinx_fe.1"
---

# sphinx\_fe.1(1)

Convert audio files to acoustic feature files

## NAME

sphinx\_fe - Convert audio files to acoustic feature files

## SYNOPSIS

**sphinx\_fe** \[ *options* \]...

## DESCRIPTION

This program converts audio files (in either Microsoft WAV, NIST Sphere, or raw format) to acoustic feature files for input to batch-mode speech recognition.  The resulting files are also useful for various other things.  A list of options follows:

Currently the only kind of features supported are MFCCs (mel-frequency cepstral coefficients).  There are numerous options which control the properties of the output features.  It is **VERY** important that you document the specific set of flags used to create any given set of feature files, since this information is **NOT** recorded in the files themselves, and any mismatch between the parameters used to extract features for recognition and those used to extract features for training will cause recognition to fail.

## AUTHOR

Written by numerous people at CMU from 1994 onwards.  This manual page by David Huggins-Daines \<dhuggins@cs.cmu.edu\>

## COPYRIGHT

Copyright © 1994-2007 Carnegie Mellon University.  See the file *COPYING* included with this package for more information.\