Audacity Forum

I tried to record my sound using sample-rate 11025 Hz with sample format 16-bit PCM. After exporting (saving) it as a .m4a file (after downloading ffmpeg library), I tried to open that file. But it does not open and the error comes as - "File may be invalid or corrupted".
Can anybody help - why now I am not able to open the same file which i exported?

Because this file is not getting opened correctly, I am not able to use the Yamb s/w also.

Please help ......

I'm curious: Why are you recording in such low quality?

ashisha wrote: After exporting (saving) it as a .m4a file (after downloading ffmpeg library), I tried to open that file. But it does not open and the error comes as - "File may be invalid or corrupted".

What "Options" did you have set?
Which version of Audacity are you using (1.3.?? Look in "Help menu > About Audacity")
Which version of FFmpeg are you using? (look in "Edit menu > Preferences > Libraries")
What was the file name that you used for the exported file?
Where did you export it to?
You tried opening the file with what program?

Thanks,
The problem is resolved.
Earlier I was trying to record in 11025 Hz. When I recorded in 22050 Hz, it was perfect. I was using 11025 Hz because when I played the sound after recording, it was not having enough background disturbance, but in the case of higher sample rate, there was too much background noise.
I am using internal microphone, just FYI.
Even after successfully saving the recording and then played using 22050 Hz, I am still not satisfied with the sound. It is still having too much background sounds.
Please suggest the measures to record a perfect sound with no background sound.
If you think that the perfect sound can be recorded with external mic only, then please let me know.

I am using audacity 1.3

Please reply.

- Ashish

Internal microphones are frequently very noisy, but the best upgrade path will depend on the type of recording that you are wanting to do.