audioinfo

Gets information about the given audio file using functions defined in the Audio library.

Syntax

R = audio(filename)

Inputs

filename
Audio file name. Currently, only .wav format files are supported.
Type: string

Outputs

R
Struct containing information about the given audio file filename. R contains the following fields:
Album:
Name of the album, if available.
Artist:
Name of the artist, if available.
AudioFormat:
Audio format type. Values can be 1-PCM, 3-IEEE float, etc.
BitRate:
Number of bits per sample.
ByteRate:
Bytes per second.
Comments:
Comments in the audio file, if available.
CompressionMethod:
Method of compression based on the audio format.
Copyright:
Copyright information if available.
CreationDate:
Date when the audio file was created, if available.
Duration:
Duration of the audio in seconds.
Filename:
Full path of the audio file filename.
Filesize:
Size of the audio file filename in bytes.
Genre:
Genre of the content, if available.
Keywords:
Keywords for the audio file filename, if available.
NumChannels:
Number of channels in the audio file filename. A value of 1 indicates mono and a value of 2 indicates stereo.
SampleFrameSize:
Sample frame size.
SampleRate:
Samples(blocks) per second
Software:
Software used to create the audio file, if available.
Source:
Source that supplied the original name of the audio file, if available.
Subject:
Subject, if available.
Title:
Title of the audio track.
TotalSamples:
Total number of samples in the audio file filename.
TrackNumber:
Track number, if available.
Type: struct

Example

Get information on an audio file: 

R = audioinfo('audio2.wav')

R = struct [
  Album: www.mfiles.co.uk
  Artist: Ludwig van Beethoven
  AudioFormat: 1
  BitRate: 16
  ByteRate: 176400
  Comments: © Music Files Ltd
  CompressionMethod: PCM
  Copyright:
  CreationDate:
  Duration: 728.086077
  Filename: C:/audio/audio2.wav
  Filesize: 128434392
  Genre: Classical
  Keywords:
  NumChannels: 2
  SampleFrameSize: 4
  SampleRate: 44100
  Software: Lavf57.83.100
  Source:
  Subject:
  Title: Symphony No.6 (1st movement)
  TotalSamples: 32108544
  TrackNumber:
]