#196 fade based on previous and next file in concatenation of audio files

[Mahmood Taghavi]

Dear developers;
I need to concatenate recorded parts of words for a Text to speech system. But always the volume of each part must be adjusted with previous and next parts. I need to detect volume of the end of previous part and also start of the next part and apply suitable fade in or out. It will cool if an option add to sox for do this based on for example x percent in the end of previous file and y percent in the start of next file.
Thanks in advance
Mahmood Taghavi

[Martin Guy]

If I understand what you need, to cross-fade between samples instead of just concatenating them, you should be able to achieve this with the splice effect; there is an example of how to use it in the manual.