TG SPACES 0.9
An accessible convolution reverb. 112 spaces, none of them recorded.

TG Studios - https://tgstudios.app


WHAT IT IS

Drop it on a track, pick a space, and your sound is in that space. A bedroom,
a cathedral, an open field, a drive-through speaker. Then move around inside it:
walk to the back of the hall, make the room bigger, turn your head.

Most reverbs of this kind ship recordings of real rooms. This one ships a
room-acoustics model and builds each response as you ask for it. That is why
"room size" makes a bigger room instead of stretching a recording, and why
walking away from the source changes the pre-delay, the balance of direct to
reflected sound, the high-frequency loss through the air and the width of the
stereo image all at once - because those are all consequences of standing
somewhere else, not separate knobs.

It also means every space in here is original work, built from physical
first principles. Nothing is sampled, licensed or borrowed from anyone.


THE PART THAT MATTERS IF YOU CANNOT SEE

Every control is a named parameter that speaks its value in words, not numbers.
In Reaper with OSARA, press P on the track and arrow through them:

    Space           Rooms: Bedroom
    Distance        12.4 m, mid room
    Listener angle  facing the source
    Mix             wet only
    Low cut         off

Distance reports real metres for the room you are actually in. Listener angle
says "facing the source" and "90 degrees left" rather than a number you have to
translate. Low cut says "off" rather than "20".

All 112 spaces are also exposed as presets, so they appear in Reaper's FX
preset dropdown at the top of the plugin window and can be stepped through
from there.

There is no custom plugin window, and that is deliberate. A drawn interface
would look better and work worse.


INSTALLING

Windows, 64-bit.

1. Copy the folder "TG Spaces.vst3" into:

       C:\Program Files\Common Files\VST3\

2. In Reaper: Options, Preferences, Plug-ins, VST, then Re-scan.

3. It appears as "TG Spaces".

To uninstall, delete that folder. Nothing is written anywhere else, there is no
installer, no registry entries and no background service.


DAW SUPPORT

Tested in Reaper on Windows. That is the honest scope of what has been verified.

It is a standard VST3, so it should load in any VST3 host on 64-bit Windows -
Cubase, Nuendo, Studio One, Ableton Live, FL Studio, Bitwig, Cakewalk,
Mixcraft, Waveform, Ardour. It has not been tested in those, and the
accessibility depends heavily on the host: the plugin exposes named, readable
parameters, but whether your screen reader reads them is down to the DAW. Reaper
with OSARA is where that works properly today.

Not currently available for:
  - Logic Pro, which needs an Audio Unit build. The AU is written and needs
    building on a Mac; it is coming.
  - Pro Tools, which needs AAX.
  - macOS, for the same reason as Logic.


THE CONTROLS

Space           112 rooms, grouped by category.
Distance        Walks you from right up against the source to the far end.
Room size       Rebuilds the room larger or smaller.
Decay           Shortens or lengthens the tail without changing the room.
                Also the CPU control - halving the decay halves the cost.
Listener angle  Turns you. Zero means facing the source.
Listening mode  Speakers, or Binaural headphones with a modelled head.
Mix             Dry to wet.
Pre-delay       Up to 250 ms before the room responds.
Width           Stereo width of the reverb. Zero is mono-safe.
Low cut         Cleans up the bottom of the reverb.
High cut        Takes the top off, for older or darker spaces.
Output          Level.


AUTOMATION

Smooth and sample-accurate: Mix, Pre-delay, Width, Low cut, High cut, Output.

Safe but stepped: Space, Distance, Room size, Decay, Listener angle. These
rebuild the room, so under automation they move in small crossfaded steps
rather than gliding. Slow moves sound fine. Fast sweeps step audibly.

This is a known limit of this version and it is being worked on. If you want a
sound to travel across a room right now, automating Mix alongside a fixed
Distance gets most of the way there.


CPU AND MEMORY

Around 5 percent of one core for a typical room. Long spaces cost more, because
a twelve-second cathedral is twelve seconds of convolution - use the Decay
control to trade tail length against CPU.

Responses are cached as you use them, so repeated playback of the same
automation is cheaper the second time. The cache is capped and clears itself.


LICENCE

Free to use, for any purpose, including commercial work. Music, records, film,
podcasts, games - whatever you make with it is yours, with no attribution
required and no royalties.

Please do not redistribute, resell, or repackage the plugin itself. Send people
to https://tgstudios.app instead, so they get updates and so I can tell how many
people are using it.

No warranty. It has been tested carefully but it is version 0.9, and you should
not put an untested plugin on a session you cannot afford to lose.


FEEDBACK

Bug reports, especially from screen reader users, are genuinely wanted - this
only gets better if people tell me where it falls down.

    hello@tgstudios.app
    https://tgstudios.app


Tony Gebhard
TG Studios
