.Net: Bring Support for Azure OpenAI gpt-4o audio responses

[Cobra86]

Describe the bug
When using GPT-4o audio-preview with Semantic Kernel, the audio response isn't return The code runs without errors, but no sound is returned from the AI response.

To Reproduce
Steps to reproduce the behavior:

1. Create a new .NET 9 project
2. Install Microsoft.SemanticKernel v1.47.0
3. Configure SDK with Azure OpenAI and the gpt-4o-audio-preview model
4. Set up audio input from microphone using NAudio
5. Request both text and audio responses with ChatResponseModalities.Text | ChatResponseModalities.Audio
6. No Audio response and only text.

Expected behavior
The AI should respond both with text (which works) and audio (which doesn't return).

Screenshots
not applicable.

Platform

• Language: C#
• Source: NuGet package Microsoft.SemanticKernel version 1.47.0
• AI model: Azure OpenAI gpt-4o-audio-preview
• IDE: Visual Studio
• OS: Windows

Additional context
I followed the example from https://devblogs.microsoft.com/semantic-kernel/using-openais-audio-preview-model-with-semantic-kernel/ and implemented microphone input using NAudio. The text response works correctly.

[Cobra86]

I just wanted to add that it's working fine with OpenAI api