Joining MP3 without 'blips' and synch loss at the joins?

[bizzybody]

I have a TV episode with bad audio. It has an MP3 audio stream but it has zero volume. I grabbed the same episode in three parts off YouTube, used FLVExtract to rip the AAC streams and ManiacTools to convert to 320K MP3.

The problem is I haven't found a way to join the three MP3 files without getting a blip at the join and a gigantic synch problem after the join, which gets worse at the second join. The synch in the first third is perfect and the audio files have perfect end to end cuts when played with Winamp.

I tried Shuangs Audio Joiner and the copy /b command in XP, got the exact same wrong results from both.

Is there a way with VirtualDub to append an audio track? I don't need to reprocess anything, I just need to put these three MP3 segments into this DivX AVI.

I suppose I *could* process the FLV's through Tsunami and have that create a single output video file then rip *that* audio stream to mux with VirtualDub to the higher quality video stream. Tsunami has never had a problem with audio synch at joins. But that's the long and roundabout method.

[Baldrick]

Have you tried joined the aac streams in audacity and then convert to mp3?

[bizzybody]

No, haven't tried that. Also, for some reason, processing the FLV files through Tsunami didn't work on these. The output single file was synched all the way through, it also was in Virtualdub, using the audio track from the file from Tsunami.

BUT when I saved as a new AVI from VirtualDub the audio synch was off same as before at the two breakpoints.

[Ai Haibara]

You could also try using MP3DirectCut to join the MP3s. As for muxing in a new audio track, you might use AVI-Mux GUI, rather than VirtualDub. (Not that VDub can't do it, it's just that I usually do it in other programs, instead. )

[hech54]

Trying to join and use someone else's 3-part capture?
Ain't gonna happen with perfect sync without some serious, hair-pulling, mind-numbing, make-you-wanna-scream, gargantuan effort.

[bizzybody]

Ended up going "Stuff this!" and found a different copy of the episode, with good audio.

Could have just joined the audio in Audition, but where's the fun in using a program with a big price tag just to stick together three little sound files seamlessly? 'Sides that, haven't reinstalled Audition since the last nuke-n-pave of my main PC.

I'll get that mp3 direct cut, looks quite useful.