**Short answer:**  
Yes — you *can* build the project with DirectX sound under VS2022 and .NET Framework 4.7.2.  
The trick is: **you must install the legacy DirectX SDK (June 2010)** and adjust VS2022 so it can see the old headers and libraries. After that, the project will build exactly like it does for the original author, and you can safely translate the GUI without touching the audio subsystem.

Below is a **clean, deterministic, engineer‑friendly workflow** tailored to your environment (VS2022, .NET 4.7.2, Wizndows 10/11).

---

# **1. Install the DirectX SDK (June 2010)**  
This is *mandatory*. VS2022 does **not** include the legacy DirectSound/DirectX Audio interfaces.

Install:  
**Microsoft DirectX SDK (June 2010)**  
(Official Microsoft download — still available)

After installation you will have:  
- `C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Include`  
- `C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Lib\x86`  
- `C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Lib\x64`

---

#  **2. Fix the DX errors in VS2022**

VS2022 sometimes complains because the SDK installs *deprecated headers* that conflict with Windows SDK.

You must apply two fixes:

### **Fix A - Remove/rename the offending header**
The file causing trouble is:

```
C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Include\dxerr.h
```

Rename it to:

```
dxerr.h.bak
```

This prevents duplicate symbol definitions with the Windows 10 SDK.

### **Fix B - Add DirectX SDK paths to VS2022**
In your C# project, the DirectX sound is usually wrapped by a C++/CLI project or a native DLL.  
Open **Project Properties -> VC++ Directories**:

#### **Include Directories**
Add:
```
C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Include
```

#### **Library Directories**
Add:
```
C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Lib\x86
```
(or `x64` depending on your build)

#### **Linker -> Input -> Additional Dependencies**
Add:
```
dsound.lib
dxguid.lib
winmm.lib
```

After this, VS2022 will compile DirectSound‑based code without errors.

---

#  **3. Restore the ASIO dependency (if needed)**

You removed:

```
Asio.Net
Bluewave.Interop.Asio.vcxproj
```

The keyer timing depends on **ASIO's high-resolution timing loop**, even if you don’t use ASIO hardware.

This is common:  
Many keyers use ASIO's callback engine as a **stable millisecond timer**.

To restore:

1. Re‑add the project to the solution:
   - Right-click Solution -> Add -> Existing Project  
   - Select `Bluewave.Interop.Asio.vcxproj`

2. Ensure it builds as **x86** (most ASIO wrappers are 32‑bit).

3. Ensure your main keyer project references the ASIO wrapper DLL.

You do **not** need to use ASIO at runtime — but the DLL must be present because the keyer uses its timing engine.

---

#  **4. Build the solution with DirectX + ASIO intact**

Once DirectX SDK is installed and ASIO project restored:

- Clean solution  
- Rebuild solution  
- The DirectX sound project will compile  
- The keyer timing will be stable again  
- You can translate the GUI safely

---

#  **5. Translate the GUI (recommended workflow)**

### **Option A - Use .resx localization**
Most C# WinForms/WPF projects use `.resx` files.

Steps:
1. Open the form (WinForms) or window (WPF)
2. Set `Localizable = true`
3. Set `Language = Slovenian`
4. VS will generate `Form.sl.resx`
5. Translate all strings inside the `.resx`

This is the cleanest method.

### **Option B - Manual string replacement**
If the project uses hardcoded strings:

- Search for `Text = "..."`  
- Replace with Slovenian  
- No need to touch audio code

---

#  **6. If you want to avoid DirectX entirely**
You *can* keep your NAudio conversion, but then you must replace the ASIO timing loop with:

- `System.Diagnostics.Stopwatch`  
- `HighResolutionTimer`  
- or NAudio's `WaveOutEvent` callback timing

But since your goal is **translation**, not rewriting the keyer engine, restoring DirectX + ASIO is the fastest and safest path.

---

#  **Summary (engineer‑style)**

```
1. Install DirectX SDK (June 2010)
2. Rename dxerr.h -> dxerr.h.bak
3. Add DX include/lib paths to VS2022
4. Link dsound.lib, dxguid.lib, winmm.lib
5. Restore Bluewave.Interop.Asio.vcxproj
6. Build solution (x86 recommended)
7. Translate GUI via .resx or manual strings
```

This reproduces the author's environment and gives you a stable, working build.