# AudioTrackSourceInfo
## **Overview**
**Related Modules:**
[Format](Format.md)
**Description:**
Defines information about the muxer audio source.
**Since:**
1.0
**Version:**
1.0
## **Summary**
## Data Fields
## **Details**
## **Field Documentation**
## avgBytesPerSec
```
uint32_t AudioTrackSourceInfo::avgBytesPerSec
```
**Description:**
Average bit rate, in byte/s
## channelCount
```
uint32_t AudioTrackSourceInfo::channelCount
```
**Description:**
Number of audio channels
## codecType
```
[CodecFormat](Format.md#gaf7ed135f15d4b218d41705bac0122ba7) AudioTrackSourceInfo::codecType
```
**Description:**
Audio encoding type, for details, see [CodecFormat](Format.md#gaf7ed135f15d4b218d41705bac0122ba7).
## sampleBitWidth
```
[AudioSampleFmt](Format.md#gadf0700999998f587f0017c4d02977b22) AudioTrackSourceInfo::sampleBitWidth
```
**Description:**
Bit width
## sampleRate
```
uint32_t AudioTrackSourceInfo::sampleRate
```
**Description:**
Sampling rate
## samplesPerFrame
```
uint32_t AudioTrackSourceInfo::samplesPerFrame
```
**Description:**
Number of samples per frame