[Octave-bug-tracker] [bug #58737] record function has no audio initially in the waveform

[Bryce Orgill]

URL:
  <https://savannah.gnu.org/bugs/?58737>

                 Summary: record function has no audio initially in the
waveform
                 Project: GNU Octave
            Submitted by: tman22
            Submitted on: Thu 09 Jul 2020 02:45:59 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Bryce Orgill
        Originator Email: 
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: Microsoft Windows

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Details:

I'm noticing when using the record function that I see no audio "wiggling" in
the waveform initially.  For the first 50ms or so, it's not present, then I do
see the audio.  I simply use the command below, where step=0.1 and Fs=44100. 
This function worked fine in Matlab several years ago when I used this
function last.  Attached is a screenshot of what I'm seeing.

Another item, and I understand this is a feature request.  Why can we not use
a number of samples parameter instead of 

y = record(step,Fs);



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File Attachments:


-------------------------------------------------------
Date: Thu 09 Jul 2020 02:45:59 AM UTC  Name: 2020-07-08@19_38_03-Figure@1.png 
Size: 32KiB   By: tman22

<http://savannah.gnu.org/bugs/download.php?file_id=49451>

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