---
title: Audio Format Services
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/audio-format-services
---

# Audio Format Services

Access information about audio formats and codecs.

## Overview

Overview This document describes Audio Format Services, a C interface for obtaining information about audio formats and codecs.

## Topics

### Audio Format Services Functions

- [AudioFormatGetProperty(_:_:_:_:_:)](audiotoolbox/audioformatgetproperty(_:_:_:_:_:).md)
- [AudioFormatGetPropertyInfo(_:_:_:_:)](audiotoolbox/audioformatgetpropertyinfo(_:_:_:_:).md)

### Data Types

- [AudioBalanceFade](audiotoolbox/audiobalancefade.md)
- [AudioFormatInfo](audiotoolbox/audioformatinfo.md)
- [AudioFormatListItem](coreaudiotypes/audioformatlistitem.md)
- [AudioPanningInfo](audiotoolbox/audiopanninginfo.md)
- [ExtendedAudioFormatInfo](audiotoolbox/extendedaudioformatinfo.md)
- [AudioFormatPropertyID](audiotoolbox/audioformatpropertyid.md)

### Constants

- [AudioBalanceFadeType](audiotoolbox/audiobalancefadetype.md)
- [Audio Format Property Identifiers](audiotoolbox/1577853-audio-format-property-identifier.md)
- [Audio Codec Component Constants](audiotoolbox/1494086-audio-codec-component-constants.md)
- [Audio Codec Manufacturer and Implementation Types](audiotoolbox/1620448-audio-codec-manufacturer-and-imp.md)
- [AudioPanningMode](audiotoolbox/audiopanningmode.md)

### Result Codes

- [Audio Format Error Codes](audiotoolbox/1577851-audio-format-error-codes.md)
- [kAudioFormatUnspecifiedError](audiotoolbox/kaudioformatunspecifiederror.md)
- [kAudioFormatUnsupportedPropertyError](audiotoolbox/kaudioformatunsupportedpropertyerror.md)
- [kAudioFormatBadPropertySizeError](audiotoolbox/kaudioformatbadpropertysizeerror.md)
- [kAudioFormatBadSpecifierSizeError](audiotoolbox/kaudioformatbadspecifiersizeerror.md)
- [kAudioFormatUnsupportedDataFormatError](audiotoolbox/kaudioformatunsupporteddataformaterror.md)
- [kAudioFormatUnknownFormatError](audiotoolbox/kaudioformatunknownformaterror.md)

## See Also

### Audio Files and Formats

- [Audio File Services](audiotoolbox/audio-file-services.md)
- [Extended Audio File Services](audiotoolbox/extended-audio-file-services.md)
- [Audio File Stream Services](audiotoolbox/audio-file-stream-services.md)
- [Audio File Components](audiotoolbox/audio-file-components.md)
- [Core Audio File Format](audiotoolbox/core-audio-file-format.md)