GoldWave (for Windows) had a Speech Converter tool that does text-to-speech and speech-to-text. It uses the Windows Speech API, so it probably won't be as good as Google. Source: over 1 year ago

The Goldwave application has an equation evaluator that will generate a waveform. Source: over 1 year ago

GoldWave should be able to do that. It doesn't support saving the audio back into the video file, but will save it to a separate audio file. Source: about 2 years ago

You might try GoldWave. Includes full editing features, noise reduction filter, and many other effects. Low cost as well. Source: over 2 years ago

There's dozens of tools out there for this these days. I'd recommend sonix.ai they give you 30 minutes free. Source: 12 months ago

Do you have a budget? If so, there's this tool I've worked with called Sonix that generates transcripts of what you feed into it. It's not super accurate, but it's good enough. One of the features is that you can "highlight" chunks of text, and have it spit out an XML that will have a sequence containing only the highlighted text. Source: over 1 year ago

Sonix was the one I used because it had 30 free minutes and the video was only 10-11 minutes long. It seems to have done a really decent job, but not sure if that's because the source audio is pretty clear. Source: over 1 year ago

Sonix.ai does many languages and is quite good. Source: over 1 year ago

I am struggling with this as well, but one good tool for me has been sonix.ai, which can transcribe pretty well (posted a little while ago about it). Source: about 2 years ago