Gemini Native Audio Model Stops Midway While Speaking

## **Description of the Bug**

When using the **Gemini native audio model** for real-time voice generation, the model occasionally stops outputting audio **midway through a sentence**.

This behavior is inconsistent — sometimes the audio completes normally, but other times it cuts off abruptly without finishing the response.

---

### **Model & Configuration**

```python
model = "gemini-2.5-flash-preview-native-audio-dialog"

CONFIG = types.LiveConnectConfig(
response_modalities=["AUDIO"],
media_resolution=types.MediaResolution.MEDIA_RESOLUTION_LOW,
# Context window compression (commented out due to causing more frequent stops)
# context_window_compression=types.ContextWindowCompressionConfig(
# trigger_tokens=28000,
# sliding_window=types.SlidingWindow(target_tokens=13774),
# ),
speech_config=types.SpeechConfig(
language_code="en-US",
voice_config=types.VoiceConfig(
prebuilt_voice_config=types.PrebuiltVoiceConfig(voice_name="puck")
),
),
realtime_input_config=types.RealtimeInputConfig(
automatic_activity_detection=types.AutomaticActivityDetection(disabled=False),
activity_handling=types.ActivityHandling.NO_INTERRUPTION
),
input_audio_transcription=types.AudioTranscriptionConfig(),
output_audio_transcription=types.AudioTranscriptionConfig(),
system_instruction=SYSTEM_INSTRUCTION,
proactivity=types.ProactivityConfig(proactive_audio=True)
)
```

**Notes:**
- Commented out **context window compression** because it seemed to cause even more frequent stops.
- Output is inconsistent — sometimes fine, sometimes stops after **just one sentence** in the middle of an interaction.

---

## **Expected Behavior**

The model should complete the entire generated audio without stopping unless explicitly interrupted.

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## **Actual Behavior**

The audio output **randomly stops mid-sentence**, requiring a retry or manual continuation.

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## **Frequency**

- Happens more often **after some responses**, not usually at the very start.
- Can also occur with **short responses**.

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## **Possible Causes (Not Confirmed)**

- API issue (most probably)
- Context window handling
- Streaming bug
- Session resumption issue

---

## **Request**

Could you please confirm if this is a **known issue** and provide any updates or **recommended workarounds**?