https://github.com/wdevore/retrovibratoweb
A web version RetroVibrato that it in turn is based off of sfrxr.js
https://github.com/wdevore/retrovibratoweb
audio-processing dartlang sfxr
Last synced: 8 months ago
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A web version RetroVibrato that it in turn is based off of sfrxr.js
- Host: GitHub
- URL: https://github.com/wdevore/retrovibratoweb
- Owner: wdevore
- License: mit
- Created: 2024-01-27T20:19:00.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2024-03-18T13:25:52.000Z (about 2 years ago)
- Last Synced: 2025-03-28T16:36:01.968Z (about 1 year ago)
- Topics: audio-processing, dartlang, sfxr
- Language: Dart
- Homepage:
- Size: 78.1 MB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# RetroVibratoWeb
A web version RetroVibrato that it in turn is based off of [jsfxr](https://sfxr.me/).
This app generates arcade sounds from the 70s and 80s.
Rev 2
# Projection creation
```sh
flutter create --platforms web .
```
# Notes
Some of the json files have what appear to be invalid values, for example, JettsonSaucer.json has negative envelope Attack and Decay but the range is from 0->1.
I believe this was from the Mutate() and Random generators. It has code that could potentially generate negative values, for example:
```go
Mutate is:
i.baseValues.attack += frnd(0.1) - 0.05
Random is:
o.baseValues.attack = cube(rndr(-1.0, 1.0))
```
One kind of fix would be to *abs(add 0.5)* to anything < 0.
The fix for Random would be to check what the range is and use that instead of hardcoded (-1,1)
# Menus
- Generators
- Wave Forms
- Volume slider
- Save
- sfxr
- wave
- Load
- sfxr
- Sample Rate
- 44 KHz (default)
- 22 KHz
- 11 KHz
- 5.5 KHz
- Sample Size
- 16 bits
- 8 bits (default)
- About
# Tasks
- ☑ Settings sliders
- ☑ State management. Used Provider
- ☑ Load json and updating GUI
- ☑ Saving json and updating GUI
- ☑ Clicking a slider label resets it to Reset value
- ☑ Add Generator selector (top)
- ☑ Add Wave form selector (under top)
- ☑ Add volume slider (next)
- ☑ Add SampleSize
- ☑ Saving wave file via download
- ☑ Porting generator algorithm from Ranger-Go-IGE
- ☑ Implement play button
- ☑ Add Help popup
- ☑ Complete Auto play (optiona, on by default)
- ☒ Implement 22KHz, 11KHz,5.5KHz sample rate options
- ☒ Implement 16 bit sample size option
- ☒ Add exception handling (optional)
- ☑
- ☒
# Audio
mime types:
- https://github.com/higuma/web-audio-recorder-js
- https://mimetype.io/audio/wav
https://pub.dev/packages/audiofileplayer
audiofileplayer 2.0.1
## Just Audio package
[Just Audio package](https://pub.dev/documentation/just_audio/latest/)
https://stackoverflow.com/questions/67078045/flutter-just-audio-package-how-play-audio-from-bytes
Streaming audio in Flutter with Just Audio (unfortunately it is behind medium's paywal)
- [Part 1](https://suragch.medium.com/playing-short-audio-clips-in-flutter-with-just-audio-3c80eb7eb6ea)
- [Part 2](https://suragch.medium.com/steaming-audio-in-flutter-with-just-audio-7435fcf672bf)
### Notes
```
ByteBuffer buffer = Uint8List(8).buffer;
ByteData bdata = ByteData.view(buffer);
bdata.setFloat32(0, 3.04);
int huh = bdata.getInt32(0);
```
MasterVolume = 1