comparison trunk/src/Support/ERBTools.h @ 277:6b4921704eb1

- Ported over HTK file output
- Added some more meat to the Slaney IIR gammatone implementation
- Ported over the AIM-MAT sf2003 parabola strobe algorithm
- Finished making the SAI implementation compile
- Ported over the strobe list class (now uses STL deques internally)

 //
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /*! \file
- *  \brief
+ *  \brief ERB calculations
  */
 
 /*! \author: Thomas Walters <[e-mail]>
  *  \date 2010/01/23
  *  \version \$Id: ERBTools.h 1 2010-02-02 11:04:50Z tcw $

   }
 
   static float Freq2ERBw(float freq) {
     return 24.7f * (4.37f * freq / 1000.0f + 1.0f);
   }
+
+  static float ERB2Freq(float erb) {
+    return (pow(10, (erb / 21.4f)) - 1.0f) / 4.37f * 1000.0f;
+  }
 };
 }
 
 #endif  // _AIMC_SUPPORT_ERBTOOLS_H_