---
title: "CLOVA Voice prerequisites"
slug: "clovavoice-spec"
updated: 2026-09-17T09:17:40Z
published: 2026-09-17T09:17:40Z
canonical: "guide.ncloud-docs.com/clovavoice-spec"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CLOVA Voice prerequisites

Available in Classic and VPC

View supported environments, pricing plans, and service limits for best use of CLOVA Voice.

## Cloud environment specifications

CLOVA Voice supports the following cloud environment specifications:

| Item | Specifications |
| --- | --- |
| Region (zone) | Korea, U.S., Singapore, Japan, and Germany |
| Platform | VPC, Classic |
| Language | Korean, English, and Japanese |

              Note

              

The languages in the cloud environment specifications refer to languages supported in the NAVER Cloud Platform console. For the types of languages supported by CLOVA Voice, see [Cautions for use](/docs/en/clovavoice-spec#%EC%84%9C%EB%B9%84%EC%8A%A4%EC%9D%B4%EC%9A%A9%EC%8B%9C%EC%A3%BC%EC%9D%98%EC%82%AC%ED%95%AD).

## Precautions when using the service

Cautions for using CLOVA Voice are as follows:

- Supported languages: Korean, English, Japanese, Chinese, Spanish, and Taiwanese
- Supported format
  - Input text format: UTF-8 encoding
  - Output file format: mp3 (default) and wav
- The maximum number of characters you can use when calling the CLOVA Voice API once: 2000 characters

## Service limits

Service limits for CLOVA Voice are as follows:

- Does not read symbols or text in parentheses
- Sampling rate setting is supported only for wav format

## Pricing information

CLOVA Voice uses a pay-as-you-go pricing plan. For details of CLOVA Voice's usage fee, see the pricing information at **Portal > Services > AI·NAVER API > CLOVA Voice**.

- [**Portal > Services > AI Services > CLOVA Voice**](https://www.ncloud.com/product/aiService/clovaVoice)

              Caution

              

CLOVA Voice incurs a basic fee for the service plan even if there are no calls after the service is created.