# Voxia microphone - CnAM 20812
**Wikidata**: [Q113136896](https://www.wikidata.org/wiki/Q113136896)  
**Source**: https://4ort.xyz/entity/voxia-microphone-cnam-20812

## Summary
The Voxia microphone (CnAM 20812) is a carbon microphone created in 1925 and preserved within the collection of the Conservatoire national des Arts et Métiers. Currently housed at the Musée des Arts et Métiers in Paris, it functions as an acoustic-to-electric transducer designed to convert sound into an electrical signal.

## Key Facts
- **Inception:** 1925
- **Location:** Musée des Arts et Métiers, Paris
- **Collection:** Conservatoire national des Arts et Métiers
- **Classification:** Microphone (Acoustic-to-electric transducer)
- **Inventory Number:** 20812-0000-
- **Type:** Carbon microphone (identified via source image metadata)
- **Commons Category:** Voxia microphone - CnAM 20812
- **Official Record:** Available via the Conservatoire national des Arts et Métiers online collections portal

## FAQs
### Q: Where is the Voxia microphone currently displayed?
A: The microphone is held at the Musée des Arts et Métiers as part of the Conservatoire national des Arts et Métiers collection.

### Q: What type of technology does this microphone use?
A: It is a microphone, which operates as an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. Source imagery identifies it specifically as a carbon microphone.

### Q: When was the Voxia microphone created?
A: The object has an inception date of 1925.

## Why It Matters
The Voxia microphone (CnAM 20812) serves as a historical artifact representing the evolution of audio technology in the early 20th century. As a device dating back to 1925, it exemplifies the era's engineering approaches to sound amplification and transmission, specifically through carbon microphone technology. Its preservation within the prestigious Conservatoire national des Arts et Métiers highlights its cultural and technical significance, offering insight into the material history of telecommunications and acoustic science. By converting sound waves into electrical signals, this device represents a fundamental step in the development of modern audio electronics.

## Notable For
- Being a surviving example of 1925 audio technology.
- Its inclusion in the permanent collection of the Conservatoire national des Arts et Métiers.
- Its classification as a "Voxia" brand microphone, distinguishable by inventory number 20812-0000-.
- Serving as a physical representation of the "acoustic-to-electric transducer" principle.

## Body
### Identity and Classification
The Voxia microphone is classified as a microphone, defined technically as an acoustic-to-electric transducer or sensor. Its primary function is the conversion of sound waves into electrical signals.

### Provenance and Location
The device was created in 1925. It is currently owned and maintained by the Conservatoire national des Arts et Métiers and is physically located at the Musée des Arts et Métiers.

### Cataloging and Documentation
The object is cataloged under the inventory number **20812-0000-**. Detailed records are accessible in French through the official museum collections portal. An image of the object is archived on Wikimedia Commons under the category "Voxia microphone - CnAM 20812," depicting the specific carbon microphone model.