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Messages - mjividen

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1
Audio recording components / Re: RecordedSound.GetDuration64()
« on: July 08, 2021, 02:09:40 PM »
As mentioned elsewhere on the forum, I'm revising an application to record hour-long radio shows.  What I need is an easier way to display the length of the recording as it's being made.  Currently, I do some saving and adding the available variables but this often gives inaccurate  values for some reason.  Do you have a sample routine to display the length of the full recording that takes into account INSERT, OVERWRITE?

2
Audio recording components / Re: File Size
« on: July 08, 2021, 02:04:09 PM »
You mention the rewritten application which should considerably speed up loading and saving files.  Has this been completed?

3
Audio recording components / Re: RecordedSound.GetDuration64()
« on: July 08, 2021, 02:02:01 PM »
Although I continue to scratch my head trying to display a continuous recording length, the instability I reported was apparently a corrupted DLL.  After removing then re-installing the Audio Recorder package, the issue went away.

4
Audio recording components / RecordedSound.GetDuration64()
« on: July 06, 2021, 02:59:22 PM »
Either I am confused about results from a call to RecordedSound.GetDuration64() or it's not working properly for me.  It seems the duration reported is only correct the first time called.  Subsequent requests during Append not only add the length of the previous session but also what seem to be random numbers.  Sometimes it's double the length of the previous session.  Sometimes something else.  The "Dictation" demo included with the software package doesn't do this but I simply can't figure out why my program... based in large part on Dictation... does this.  I have compared my code to the Dictation sample which is identical to the sample on every line having effect on duration and position.  Any thoughts?

5
Audio recording components / Re: File Size
« on: January 05, 2021, 08:38:23 PM »
Although I need to save in MP3, I have experimented with recording in WAV and then exporting to MP3.  I see little difference in the delay from Stop to Record and back whether my app records in WAV, MP3 or a couple of other formats I've tried.  Next thought?

6
Audio recording components / File Size
« on: January 04, 2021, 08:40:30 PM »
My application is recording hour-long book readings.  At this point, it does not include the ability to edit except to set the recording mode to Append, Insert, etc. I am very frustrated that, as the file becomes longer, the time it takes to be ready to record after a "Stop" is more than a minute duration.  This application is replacing a VB6 program which employs the Windows multi-media interface and goes from record to play and back instantaneously.  However, it only saves in .WAV and we need to export in MP3.  I've spent a great deal of time on the new version built around MMSOFT Audio Recorder.  I have eliminated all wave analysis and display, recorded to memory and to hard drive as well as experimented with other ways to speed this up but have failed.  I think I've tried everything in the Audio Recorder documentation but the application remains unsatisfactory.  I hope there is a solution I've not yet stumbled upon.  Can someone please give me the answer?

7
Audio recording components / append directly to hard disk
« on: December 11, 2019, 02:24:40 PM »
My application will be used to record half-hour and hour-long audio programs for radio broadcast.  There would be no copy and paste editing available.  As the audio sound recorder library seems to work, should the user stop the recorder after a few minutes then begin recording again, the second session goes to memory, the wave analyzer is cleared and the duration callback starts at zero.  The user now has no indication of the total length of the recording but only sees the duration of the current session. I can't rely on the user simply clicking PAUSE to avoid using the STOP function.  And, not using STOP creates issues if the user wishes to rewind and then overwrite some of their recording.

My questions are these:

1) since the final audio programs would regularly be 60 minutes, I'd rather not be recording directly to memory.  Can I restart the current session and append directly to the original data on the hard drive?

2) can I prevent the recording duration from starting at zero each time the user stops the recording but to accumulate to the total length of the recorded program?

- Mark

8
Is there a method to invoke a STOP command and remain at the current position rather than returning to the beginning of the file?

9
Audio recording components / View Waveform while Recording
« on: October 02, 2019, 04:27:10 PM »
Is there a way to view and update a waveform display during recording?  Goldwave, Audacity and others have this feature.

10
Audio recording components / Display VU during recording
« on: August 28, 2019, 03:28:50 PM »
How can I display the input level during record?  Surely there must be a method to do this without simultaneously recording and then playing a session.

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