Unable to run a 32-bit program on 64-bit machine

Qs. I compiled a small "hello world" C program on Ubuntu 10.04 32 bit machine. Then I put the executable(a.out) on Ubuntu 12.10(64 bit) VMWare virtual machine and tried to execute it(./a.out). The OS does not identify the file and says 'No such file or directory'. But when I put the same executable on a Ubuntu 12.10(64 bit) running on a 64 bit laptop, it runs fine and I get the desired output. The VM is running on IBM Blade Servers. I wanted to know why the results for a VM?

Ans:
The message No such file or directory does not refer to your executable file: a.out. Instead it refers to a helper program that's needed to run the 32 bit dynamically linked executable a.out.

Source: http://askubuntu.com/questions/351827/unable-to-run-a-32-bit-program-on-64-bit-vm

Error Wavesurfer: "Unable to open mixer /dev/mixer" or or “Could not gain access to /dev/sound/dsp "

If you get an error in terminal saying "Unable to open mixer /dev/mixer" or "Could not gain access to /dev/sound/dsp for writing.". You can resolve this problem by installing "libsnack2-alsa" package. If you are trying to install "libsnack2-alsa" package "wavesurfer" is going to uninstall, if wavesurfer is already installed.

source: http://www.lessons4you.info/solved-unable-to-open-mixer-devmixer/

Error while building flite : find_sts: usage: find_sts OPTIONS Find sts from lpc and waveform

$ ./bin/build_flite sts
Error:
/home/boss/tts_install/flite_odia/flite-1.5-beta/bin/find_sts: 
usage: find_sts OPTIONS
Find sts from lpc and waveform
-codec <string>    ulaw (default), g721, g721vuv, vuv
-vuv <string>      v/uv track (for some codecs)
-lpcmin <float>    minimum LPC value
-lpcrange <float>  range of LPC values
-lpc <string>      LPC track file
-wave <string>     WAVE file
-o <string>        STS output file

Solution: This error comes when we customize the the cst_tokenstream.c file (inside $FLITEDIR/src/utils directory) to suit our need. To resolve this issue put original  cst_tokenstream.c run the make command inside $FLITEDIR/src/utils  directory. GO to $FLITEDIR directory, run make command here also.  now run sts command.

After runninng idx and voxdata command, replace cst_tokenstream.c with customized one, run the make command inside directory. GO to $FLITEDIR directory, run make command here also.  Now, proceed further