Ask a frequency spectrum in which sings or says the speaker, and the minimum value of the amplitude that will have Edge separation program as a word , and everything below it will have a pause between the words,I will be very glad if someone give sample solution
If you want to insert pauses between all words based on the silence level between words, try this Extend Silences plugin.
Audacity does not have any way to find instances of the same pitch that I know of, unless someone has written an experimental plugin. There is an experimental plugin to find instances of the same word, based on intonation Need pointers on adding feature to search pattern - #3 by Robert_J_H
What exactly is your end purpose? Your written text is not the same as counting all the words in a song. You can sometimes find all the beats in a song, if it has an aggressive beat.
I doubt any of this is going to help you… Human ears and a human brain are probably the best tools for the job.
How can I determine the average value of the volume of the song?
The “most reliable” way with free software would probably be to use the [u]SoX[/u] stats command. SoX is a command line program and RMS is a kind of average level. (I believe Adobe Audition can do various statistics but it’s not free.)
You can also try Audacity’s Analyze → Contrast (but I think it only works on mono files) or there is a plug-in called [u]Wave Stats[/u] that may work (but it may have trouble analyzing a whole song).
Note that those are the fundamental frequencies and there are overtones & harmonics above that. “T” and “S” sounds may extend up to around 10KHz. (Speech or singing sounds muffled if you filter-out the frequencies above 1000 Hz.) And of course, there is a LOT of overlap with the musical instruments.