Ljspeech dataset audio improvements

[JRMeyer]

>>> lclrk
[July 28, 2020, 3:34pm]

So was looking at the two main issues with ljspeech dataset, noise and
sibilants. I think they can be fixed, so I tested out some some batch
processing on the first 7 files. I think the original is pretty reverb-y
as well, so toned that down, maybe could go further. From a quick skim
it seems like it's recorded in the same room, mostly uniform so I don't
think processing will be destructive but haven't dived too deep. Any
thoughts on this?

with processing: slash
https://tinyurl.com/yywus4nq

original: slash
https://tinyurl.com/yxn5mpne

[This is an archived TTS discussion thread from discourse.mozilla.org/t/ljspeech-dataset-audio-improvements]

[JRMeyer]

>>> nmstoker
[July 28, 2020, 5:12pm]

Interesting. It's subtle (at least listening on my device) but it does
sound like you removed the room reverb that's noticeable in a few
places. How did you do it and can it be applied en masse, eg via script?

[Archived Post]

[JRMeyer]

>>> georroussos
[July 28, 2020, 6:33pm]

That is great! Maybe you can also try a lowpass and silence shortening.

[Archived Post]

[JRMeyer]

>>> lclrk
[July 28, 2020, 6:43pm]

I've been producing a few podcasts so set up a nice chain/workflow for
dialogue. It can be applied en masse, It's with audio plug-ins though.
I'm using RX7 for batch processing function but I use 3rd party plug-ins
from my production workflow within it.

[Archived Post]

[JRMeyer]

>>> lclrk
[July 28, 2020, 6:57pm]

good idea on the low pass! I'm using audio plug-ins vs. a script so I'm
not sure if there's a reliable plug-in for trimming silence in this
workflow. slash
The treatment is applied fairly lightly here as I wasn't sure about the
variance in acoustics over the set. I will analyze the whole dataset for
changes, then could batch treat sections. Any other issues you can think
of to address?

[Archived Post]

[JRMeyer]

>>> georroussos
[July 28, 2020, 7:07pm]

Not really, but I suggested the lowpass because she recorded in a
typical room so it should help. Silence shortening can be done with
Wavepad

[Archived Post]

[JRMeyer]

>>> lclrk
[July 28, 2020, 7:24pm]

great, I'll treat them first then use wavepad when there's no noise

[Archived Post]