why current sample always is 513 in audioplayer properties?

I have used audioplayer several times and do not understand the meaning of several properties of audioplayer that is displayed on the command window. I noticed always the current sample is shown as 513.

ans =

audioplayer with properties:

          SampleRate: 16000
       BitsPerSample: 16
    NumberOfChannels: 1
            DeviceID: -1
       CurrentSample: 513
        TotalSamples: 1766400
             Running: 'on'
            StartFcn: []
             StopFcn: []
            TimerFcn: []
         TimerPeriod: 0.0500
                 Tag: ''
            UserData: []
                Type: 'audioplayer'

Specifically, I do not understand the terms below and why their values are as they are

            DeviceID: -1
       CurrentSample: 513

             Running: 'on'
            StartFcn: []
             StopFcn: []
            TimerFcn: []
         TimerPeriod: 0.0500
                 Tag: ''
            UserData: []
                Type: 'audioplayer'

[Jan]

Perhaps you want to post the command, which produces this answer, such that we can reproduce the output without guessing.

The properties "StartFcn", "StopFcn", "TimerFcn", "Tag", "UserData" and "Type" seems to be trivial and are explained in the documentation. What does

doc audioplayer

not explain?

[Seetha Rama Raju Sanapala]

@Jan Simon;

aro=audiorecorder(16000,16,1); record(aro);

>> stop(aro) >> play(aro)

ans =

audioplayer with properties:

          SampleRate: 16000
       BitsPerSample: 16
    NumberOfChannels: 1
            DeviceID: -1
       CurrentSample: 513
        TotalSamples: 282624
             Running: 'on'
            StartFcn: []
             StopFcn: []
            TimerFcn: []
         TimerPeriod: 0.0500
                 Tag: ''
            UserData: []
                Type: 'audioplayer'

Whatever you record, the current sample is always 513. Why?