Converting raw output to .wav with ffmpeg

[Dingo64]

I dumped the raw output to a file and now I want to convert this file to .wav with ffmpeg:

ffmpeg.exe -f s8 -ar 44000 -ac 2 -i result.txt -ar 44100 -ac 1 out1.wav

The length (in seconds) of the output is valid but instead of sound I can only hear clicking.