Liana_s01 asked . 2021-03-13

Why do I receive a segmentation violation when I pass in an

Why do I receive a segmentation violation when I pass in an INT16/INT32 datatype into the RESAMPLE function in the Signal Processing Toolbox?

When I type

z = int32(50*rand(10000,1));

zrs = resample(z, 10, 625);

I receive the following segmenation violation:

 ------------------------------------------------------------------------

        Segmentation violation detected at Mon Aug 02 10:59:41 2004

 ------------------------------------------------------------------------

 Configuration:

   MATLAB Version:   7.0.0.19920 (R14)

   Operating System: Microsoft Windows XP

   Window System:    Version 5.1 (Build 2600: Service Pack 1)

   Processor ID:     x86 Family 15 Model 2 Stepping 9, GenuineIntel

   Virtual Machine:  Java 1.4.2 with Sun Microsystems Inc. Java HotSpot(TM) Client VM

     (mixed mode)

   Default Charset:  ibm-5348_P100-1997

 Register State:

   EAX = 21a7c560  EBX = 21a81750

   ECX = 227502b0  EDX = 22749168

   ESI = 00000010  EDI = 22749168

   EBP = 00cdd174  ESP = 00cdd134

   EIP = 0e901154  FLG = 00010206

 Stack Trace:

   [0] upfirdnmex.dll:0x0e901154(0x21cbf7a0, 0x2273ca30, 10000, 0x21a7c550)

   [1] upfirdnmex.dll:0x0e9016a1(1, 0x00cdd8dc, 8, 125)

   [2] libmex.dll:_mexRunMexFile(1, 0x00cdd8dc, 8, 0x00cdd93c) + 71 bytes

   [3] libmex.dll:public: virtual void __thiscall Mfh_mex::dispatch_file(int,struct mxArray_tag * *,int,struct mxArray_tag * *)(1, 0x00cdd8dc, 8, 0x00cdd93c) + 157 bytes

   [4] m_dispatcher.dll:public: virtual void __thiscall Mfh_file::dispatch_fh(int,struct mxArray_tag * *,int,struct mxArray_tag * *)(1, 0x00cdd8dc, 8, 0x00cdd93c) + 273 bytes

   [5] m_interpreter.dll:_inDispatchFromStack(3245, 0x2a690184 "upfirdnmex", 1, 8) + 891 bytes

   [6] m_interpreter.dll:enum opcodes __cdecl inDispatchCall(char const *,int,int,int,int *,int *)(0x2a690184 "upfirdnmex", 3245, 1, 8) + 111 bytes

   [7] m_interpreter.dll:int __cdecl inInterp(enum inDebugCheck,int,int,enum opcodes,struct inPcodeNest_tag volatile *)(1, 368, 85, 0) + 2282 bytes

matlab , signal , signal processing

Expert Answer

Prashant Kumar answered . 2024-12-20 17:59:06

This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:

The RESAMPLE function in the Signal Processing Toolbox only handles double datatype variables.

To work around this issue, try converting the input signal to a double datatype using the DOUBLE function. For example,

Instead of

zrs = resample(z, 10, 625);

try,

z = double(z);

zrs = resample(z, 10, 625);

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