Nowadays you can edit a video in VSE. The image has received some improvements in the last year, but I have searched for changes in the sound part and it looks nearly empty (draw soundwaves is the last modification)

Current Sound strips

Sound strips have

• volume
• "pitch" (actually, is a faster / slower sound, which at the end is pitch up/down)
• pan
• "convert to mono"

If you have several sound strips, you can hear several at the same time, so there is a "mix".

At the same time, there is in Blender source code a sound specific library (Audaspace), and a generic library with filters for audio and video (ffmpeg).

Proposal

First of all, Blender is a 3d / 2d application with some extra utilities. Sound shouldn't be its priority, but, we could keep only some helpfull filters for last minute, non destructive, edition.

I studied a little about standard sound plugins like VST and others, but in the Blender guidelines of development, they say specifically that they don't want any kind of binary plugins that could make the whole Blender unstable or more difficult to debug.

Changes in Sound

So, only the most basic filters / modifiers for sound.

• use the tab modifiers of audio, the same as the video one
• move to this section "pan"
• rename"pitch" to "speed"
• add new modifiers / filters like:
  • equalizer
  • compressor
  • echo
  • reverb

New space

In order to use any simple filters, we need something to see current state and changes, so we would need 2 new visualizations:

Vumeter

One vumeter for each audio channel.

Sound bars

If we want to apply some filters in the space of frequency, we should be able to see its state, so we would need to see several bands of frequency, like the ones to apply an equalizer.

Final words

Of course, we all want to get everything, but that is NOT POSSIBLE . I would like to reduce or simplify the proposal, in order to get something really useful and "achievable".