# AI models: Speech Enhancement

- Updated on Apr 17, 2026
- Published on Mar 18, 2026

- 1 minute(s) read

### Introduction

The following document lists Sanas' **Speech Enhancement** ( **SE**) model releases. Versions are listed newest-first. Each entry summarizes what changed and who it affects.

Speech Enhancement builds on all Noise Cancellation capabilities and adds high-fidelity audio processing at a higher sampling rate, producing richer, more natural-sounding output. Like NC, SE uses independently trained AI models for each audio direction— outbound (agent-side) and inbound (customer-side).

For desktop application releases that bundle these models, see [Product updates](https://help.sanas.ai/portalv3/docs/product-updates). For detailed benchmarking methodology and performance data, see [Sanas science blogs](/content/science/index.html).

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#### SE2.1

|     |     |
| --- | --- |
| **Field** | **Detail** |
| Model version | 2.1 |
| Speech capability | Speech Enhancement |
| Audio direction | Outbound and Inbound |
| Sampling rate | 8kHz |
| Available modes | - _(Outbound)_ Voice Isolation - Near field and Far field<br>  <br>- _(Inbound)_ Standard with ringtone passthrough |
| Release status | GA |

##### What changed

- Eliminates reverbs and room acoustics from speech
- Restores audio packet loss due to a poor network connection
- Corrects audio degradation via the codec compression
- Improved audio fidelity on the old telephony systems (8kHz)
- Improvements in the background environmental noises and distant speech removal
- Overall enhancements in speech clarity, articulation, energy, and vocal presence.

* * *

#### SE1.0.1 (Outbound)

|     |     |
| --- | --- |
| **Field** | **Detail** |
| Model version | 1.0.1 |
| Speech capability | Speech Enhancement |
| Audio direction | Outbound (Sanas app user’s-side) |
| Sampling rate | 24kHz |
| Release status | GA |

##### What changed

- Includes all outbound Noise Cancellation capabilities, background noise suppression up to 80–90 dBA, background speech cancellation, and support for 8,000+ noise profiles.
- High-fidelity 24kHz audio output delivers richer, more natural-sounding speech compared to the 8kHz telephony-grade output of NC models.

* * *

#### SE1.0.1 (Inbound)

|     |     |
| --- | --- |
| **Field** | **Detail** |
| Model version | 1.0.1 |
| Speech capability | Speech Enhancement |
| Audio direction | Inbound (Call recipient’s-side) |
| Sampling rate | 24kHz |
| Release status | GA |

##### What changed

- Includes all inbound Noise Cancellation capabilities — far-field speech preservation, handling of unpredictable ambient environments, and support for variable-quality audio sources.
- High-fidelity 24kHz audio output enhances the clarity and naturalness of the customer's voice beyond what NC inbound models provide.

* * *

### Support

**Need help?** Get in touch with our [Support Team](mailto:support@sanas.ai) for assistance.