Learn more about Signal Processing Toolbox

Version 6.13 (R2010a) Signal Processing Toolbox Software

New Features and Changes	Version Compatibility Considerations	Fixed Bugs and Known Problems	Related Documentation at Web Site
Yes Details below	Yes — Details labeled as Compatibility Considerations below. See also Summary.	Bug Reports Includes fixes	Printable Release Notes: PDF Current product documentation

New features or changes with compatibility impact in this version are

• Single-Precision Support Added for dfilt Objects

• Embedded MATLAB Support for Additional Signal Processing Toolbox Functions

• Functions, Objects, Object Methods, and Object Properties Being Removed

• Warning for Filter Designer in SPTool

Single-Precision Support Added for dfilt Objects

In R2010a, users can construct dfilt objects with single-precision floating point arithmetic. Set the Arithmetic property to 'single' to obtain a single-precision floating point representation of the filter coefficients.

Embedded MATLAB Support for Additional Signal Processing Toolbox Functions

In R2010a, Embedded MATLAB^® supports additional functions in the Signal Processing Toolbox™. You can find a comprehensive list of supported functions at Embedded MATLAB Function Library Reference. You can find examples of using supported functions with the Signal Processing Toolbox software at Embedded MATLAB Support in Signal Processing Toolbox.

Functions, Objects, Object Methods, and Object Properties Being Removed

Name	What Happens When you use the Function, Object, Object Method, or Object Property	Use Instead	Compatibility Considerations
addsection (Method for dfilt.cascade and dfilt.parallel objects)	Errors	addstage method	Replace all instances of the addsection method with the addstage method for dfilt.cascade and dfilt.parallel objects.
FFTLength (Property of spectrum objects)	Errors	'NFFT' parameter in psd or msspectrum methods	Replace all instances of the FFTLength property in spectrum objects by the 'NFFT' parameter in the psd or msspectrum methods.
freqzplot	Warns	fvtool	Replace all instances of freqzplot with fvtool.
removesection (Method for dfilt.cascade and dfilt.parallel objects)	Errors	removestage method	Replace all instances of the removesection method with the removestage method for dfilt.cascade and dfilt.parallel objects.
Section (Property of dfilt.cascade and dfilt.parallel objects)	Errors	Stage property	Replace all instances of the Section property with the Stage property for dfilt.cascade and dfilt.parallel objects.
Sidelobe_atten (Property of sigwin.chebwin object)	Errors	SidelobeAtten property	Replace all instances of the Sidelobe_atten property with the SidelobeAtten property for sigwin.chebwin objects.
specplot	Warns	plot method with DSPDATA object	Replace all instances of specplot with the plot method for DSPDATA objects.

Warning for Filter Designer in SPTool

In R2010a, the use of Filter Designer in sptool is not recommended. Use fdatool instead. Under File —> Preferences-> Filter Designer in SPTool, you may still select to use Filter Designer, but you will receive a warning that Filter Designer will be removed in a future release. If you select Filter Designer, you will be prompted to change your preferences in the sigprefs.mat and startup.spt files when you exit SPTool. Changing your preferences to use Filter Designer results in a warning each time SPTool starts. See Setting Preferences and Saving and Loading Sessions for details.

Compatibility Considerations

Because a future release will remove Filter Designer , use fdatool instead. Filters created in Filter Designer are not compatible with FDATool. Under File —> Preferences-> Filter Designer in sptool, you can select to use FDATool. You receive a prompt to convert filters created in Filter Designer to a format compatible with FDATool. When you exit sptool after changing your preferences, you receive another prompt, instructing you to update your preferences to use FDATool.

Signal Processing Toolbox Release Notes

Version 6.12 (R2009b) Signal Processing Toolbox Software

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