> ## Documentation Index
> Fetch the complete documentation index at: https://developer.sanas.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# SE 1.2 - Enhanced 

> Real-time full-fidelity speech enhancement — denoising, de-reverberation, speech reconstruction, and bandwidth extension to 24kHz.

The Speech Enhancement `SE1.2` model delivers full-fidelity speech enhancement for demanding Human ↔ Human audio. It takes input up to 16kHz and outputs ultra-fidelity 24kHz audio, going beyond noise removal to reconstruct and restore degraded speech, remove reverberation, and recover quality lost to low-bitrate codecs — for a richer, clearer, more natural listening experience.

## Key Features

<CardGroup cols={2}>
  <Card title="Bandwidth Extension" icon="arrow-up-right-dots">
    Extends audio to ultra-fidelity 24kHz for a richer, more natural voice experience beyond standard telephony quality.
  </Card>

  <Card title="Denoising" icon="volume-slash">
    Removes background noise and non-primary voices, including residual noise and background speech left by earlier models.
  </Card>

  <Card title="Speech Reconstruction" icon="microphone">
    Reconstructs and restores degraded speech, improving intelligibility and signal clarity — even without upsampling.
  </Card>

  <Card title="De-reverberation" icon="wrench">
    Removes room reverberation from the signal for a cleaner, more present voice.
  </Card>

  <Card title="Codec Restoration" icon="arrows-rotate">
    Recovers quality lost to low-bitrate codec compression.
  </Card>

  <Card title="Cleaner High Frequencies" icon="waveform-lines">
    Improved reproduction of sibilants and fricatives (reduced lisping) and reduced scratchiness in very low signal-to-noise conditions.
  </Card>
</CardGroup>

## Specifications

**Model ID:** `SE1.2`<br />**Category:** Speech Enhancement<br />**Type:** Human ↔ Human

<CardGroup cols={2}>
  <Card title="~90ms" icon="bolt">
    Streaming latency
  </Card>

  <Card title="16kHz → 24kHz" icon="waveform-lines">
    Input / Output sample rate
  </Card>
</CardGroup>

<Note>
  **Input constraint:** input bandwidth above 8kHz is not supported, so the maximum input sampling rate is 16kHz. The model operates and outputs at 24kHz.
</Note>

## Use Cases

<CardGroup cols={2}>
  <Card title="Contact Centers" icon="headset">
    Premium voice quality for agent-customer calls where clarity and presence matter most.
  </Card>

  <Card title="Conferencing" icon="users">
    Ultra-fidelity audio for video conferences and virtual meetings.
  </Card>

  <Card title="Telemedicine" icon="stethoscope">
    Crystal-clear audio for doctor-patient consultations where every word counts.
  </Card>

  <Card title="Degraded & Codec-Compressed Audio" icon="circle-dot">
    Restore intelligibility on noisy, reverberant, or low-bitrate codec-degraded audio.
  </Card>
</CardGroup>

<Note>
  **Known Limitations**

  * Some residual lisping can remain on speech with bandwidth below \~3kHz.
  * Some scratchiness and artifacts can remain on audio compressed with very low-bitrate codecs.
</Note>

## Code Example

Create an audio processor with the SE 1.2 model:

```python theme={null}
attrs = sanas.ProcessorAttributes(
      audio_attributes=sanas.AudioAttributes(
                sampling_rate=16000,
                channels=1,
                model_name="SE1.2",
                audio_pipeline_state_notify=on_state,
      )
)

with sdk.create_audio_processor(attrs) as proc:
      ...
```

For full setup and initialization, see the [Quick Start →](/Docs/Getting-Started/Quick-Start)

## Next Steps

<CardGroup cols={3}>
  <Card title="Quick Start" icon="rocket" href="/Docs/Getting-Started/Quick-Start">
    Get up and running with Sanas SDK in under 5 minutes.
  </Card>

  <Card title="API Reference" icon="book" href="/API-Reference/Overview">
    Full SDK documentation for classes, enums, and callbacks.
  </Card>

  <Card title="Processing Multiple Streams" icon="layer-group" href="/Docs/Tutorials/Processing-Multiple-Streams">
    Handle multiple concurrent audio streams.
  </Card>
</CardGroup>