[FFmpeg-user] ffmpeg, amix, adelay out of sync issues

[Randy Johnson]

Hello,

I have a series of mp3 files with a start time offset.
I am trying to merge them together with adelay and amix.
The following codes run and creates the combined MP3 but when I listen
to the final output file there are spots where people are talking over
each other not in the sense they are being rude but the audio being out
of sync.
Here are the files with the start and stoptime offsets:

d4a19a58-790a-45c1-b96e-819bc98cd408.webm | 1720 | 3762173 ab794f92-
bdfb-4bb0-821d-ba80c8a9228a.webm | 48920 | 3328385 a7df9a51-0671-4930-
a14b-e7d85a562577.webm | 76220 | 3763361 5d312878-d25d-40d7-9418-
bed85e22efc6.webm | 3109640 | 3267473 1cf6127d-250a-4601-a219-
b1b6bbd725f8.webm | 3360980 | 3636927 c3ddd462-e05a-425f-af58-
f288f930f2cb.webm | 3689600 | 3760423
Here is the command broke into lines for easier readability:

ffmpeg -i d4a19a58-790a-45c1-b96e-819bc98cd408.mp3 -i ab794f92-bdfb-
4bb0-821d-ba80c8a9228a.mp3 -i a7df9a51-0671-4930-a14b-e7d85a562577.mp3 -
i 1cf6127d-250a-4601-a219-b1b6bbd725f8.mp3 -i c3ddd462-e05a-425f-af58-
f288f930f2cb.mp3 -filter_complex " [0]adelay=1720|1720[a0];
[1]adelay=48920|48920[a1]; [2]adelay=76220|76220[a2];
[3]adelay=3360980|3360980[a3]; [4]adelay=3689600|3689600[a4];
[a0][a1][a2][a3][a4]amix=inputs=5 " out.mp3 -y
Any idea what I am doing wrong?

Thanks!