Описание
# Euphonium: Sound Blaster Pro Edition
*A resourcepack that transforms [Euphonium](https://modrinth.com/mod/euphonium)’s ambient sounds into an authentic MS-DOS Sound Blaster experience.*
## 🔉 **Why This Exists**
Modern audio is too clean! This pack downgrades [Euphonium](https://modrinth.com/mod/euphonium)’s sounds to **8-bit, 22.05 kHz** with analog imperfections, mimicking the gritty, warm noise of a 1992 Sound Blaster Pro (1.0). Perfect for retro-styled modpacks or DOS gaming nostalgia.
## 🎛️ **Technical Deep Dive**
### **22.05 kHz Sample Rate**
- Matches the Sound Blaster Pro’s hardware limit for games (*half the 44.1 kHz CD standard*).
- Reduces high-frequency aliasing, just like the original DAC’s analog low-pass filter.
### **8-Bit Depth + TPDF Dithering**
- The SB Pro used 8-bit DACs for digital audio (e.g., VOC files).
- **Dithering**: `TPDF` (Triangular Probability Density Function) with **Shibata noise shaping** mimics the card’s analog noise floor, avoiding "digital grit" while preserving dynamics.
### **Brown Noise Layer**
- Adds a subtle `-50dB` brown noise hiss to emulate:
- The SB Pro’s analog output stage.
- CRT monitor interference (iconic for DOS gaming).
### **Low-Pass Filter @ 7500 Hz**
- Replicates the Sound Blaster’s physical output filter, which rolled off frequencies above ~7.5 kHz.
### **Overdrive + Gain Reduction**
- **Overdrive 2**: Light distortion from the SB Pro’s op-amp circuits.
- **Gain -1**: Prevents clipping after dithering/noise injection.
## 📼 **Authenticity Notes**
- Tested against recordings from *Duke Nukem 3D* (SB Pro) and *DOSBox-Staging*’s SB emulation.
- The chain (`sox` effects + noise shaping) mirrors how games like *Doom* mixed PCM audio.
## ⚙️ **Compatibility**
- Designed for [Euphonium](https://modrinth.com/mod/euphonium) **1.0.3+1.20** _(other versions untested!)_.
## 🖇️ **Credits**
- **Tools**: `sox` for DSP, `find`/`bash` for batch processing.
- **Inspiration**: VOGONS community, SBEMU, and real SBPro hardware tests.
*"It’s not a bug – it’s a feature (of 1992)."*