Filter Design Toolbox Release Notes

Changes to Quantizer set Function

With this release, and moving forward, you can not use property values alone to set property values when you use set. You must supply the property name and property value in the call. In your existing code, be sure that calls to set include both property names and property values. If you do not include the property name with the property value, MATLAB returns a warning similar to

• ??? There is no 'propertyvalue' property in the 'quantizer' class.
  

indicating that you should add the property name to define the required property in the syntax. For example:

• q=quantizer
   
  q =
   
              Mode = fixed
         RoundMode = floor
      OverflowMode = saturate
            Format = [16  15]
   
  set(q,'wrap',[16 15])
  ??? There is no 'wrap' property in the 'quantizer' class.
  set(q,'overflowmode','wrap','format',[10 8])
  get(q)
                mode: 'fixed'
           roundmode: 'floor'
        overflowmode: 'wrap'
              format: [10 8]
  

Obsolete Functions in Version 2.0

Filter Design Toolbox 2.0 makes obsolete the following functions that were part of Quantized Filter Design Toolbox.

Obsolete Function	Suggested Replacement
propinfo	Use help constructor/propertyname to get help about a function. Or use the Help browser.
qfiltlog	Use qreport to get information about quantized filters, quantized FFTs, and quantizers.
qhelp	Use help constructor/propertyname to get help about a function. Or use the Help browser.

Upgrading from an Earlier Release

Known Software and Documentation Problems