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vrf WAV File Library

Question asked by g.nied on Sep 4, 2002
Latest reply on Feb 4, 2003 by kevin.hasselquist

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Yes, sure

I hope that is the only error )

        Georg Nied
   Software-Development
Hansestr.7 - 51149 Cologne
        Germany
Mail: info@gn-software.de

-----Original Message-----
From: Les Hammer [mailto:les_hammer@att.net]
Sent: Wednesday, September 04, 2002 6:53 PM
To: Georg Nied
Subject: Re: [vrf] WAV File Library

> This is a library witch gives you some functions

You mean "which." A witch is someone who practices occult magic.

Les

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g.nied Aug 24, 2002 10:05 PM

To all of you who were interested in this topic:
I am currently on vacations and it may take some days to do the coding

Be patient,

        Georg Nied
   Software-Development
Hansestr.7 - 51149 Cologne
        Germany
Mail: info@gn-software.de

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g.nied Sep 3, 2002 11:03 AM

Yoeri -

> making use of the plot pin.

I got different results with the "print" pin. I didn't realize these two
were different. This is on NT with a desk jet driver.
-SHAWN-

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kevin.hasselquist Feb 4, 2003 12:03 AM

I'm not really paying attention, but this was posted last year-
K2

-----Original Message-----
From: ext Georg Nied [mailto:g.nied@gn-software.de]
Sent: 03 September, 2002 5:04 PM
To: VEE vrf
Subject: [vrf] WAV File Library

Hello group,

to all who were interested ...

This is a library witch gives you some functions to handle windows sound
files (wav). Those files are stored in the Microsoft RIFF format, described
by Microsoft or at www.daubnet.com/formats/riff.html .

I did only implement the most common uncompressed PCM format.
The test functions give an exymple of how to use the SndRec_... functions:

SndRec_ReadFromWav(FileName):SndRec
   reads the specified .wav file and converts it into the internally
   used SndRec record with the following format:

     Channels      : Int32
     Samples       : Int32
     SamplesPerSec : Int32
     BitsPerSample : Int32
     Duration      : Real64
     Data          : Int32 2D
     Copyright     : Text

SndRec_SaveAsWav(SndRec, FileName)
   saves the sound record to a .wav file

SndRec_BuildFromWF(Waveform):SndRec
   builds a soundrec from a waveform (single channel)

SndRec_Merge(SndRec_Left, SndRec_Right)
   merges two SndRecs to one stereo sound rec

SndRec_GetChannel(SndRec, channel): waveform
   reads a single channel (0=left, 1=right) from a sound rec
   and returns it as a waveform signal

SndRec_Play(SndRec)
   plays the sound by first saving the record to a temp .wav file
   and then playing it from disk.

Ok, thats the first attempt to use the sound card.
Give me some response, if it is useful to you.

        Georg Nied
   Software-Development
Hansestr.7 - 51149 Cologne
        Germany
Mail: info@gn-software.de

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3 Replies

g.nied Aug 24, 2002 10:05 PM
Mark Correct
Correct Answer
To all of you who were interested in this topic:
I am currently on vacations and it may take some days to do the coding

Be patient,

        Georg Nied
   Software-Development
Hansestr.7 - 51149 Cologne
        Germany
Mail: info@gn-software.de

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g.nied Sep 3, 2002 11:03 AM
Mark Correct
Correct Answer
Yoeri -

> making use of the plot pin.

I got different results with the "print" pin. I didn't realize these two
were different. This is on NT with a desk jet driver.
-SHAWN-

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kevin.hasselquist Feb 4, 2003 12:03 AM
Mark Correct
Correct Answer
I'm not really paying attention, but this was posted last year-
K2

-----Original Message-----
From: ext Georg Nied [mailto:g.nied@gn-software.de]
Sent: 03 September, 2002 5:04 PM
To: VEE vrf
Subject: [vrf] WAV File Library

Hello group,

to all who were interested ...

This is a library witch gives you some functions to handle windows sound
files (wav). Those files are stored in the Microsoft RIFF format, described
by Microsoft or at www.daubnet.com/formats/riff.html .

I did only implement the most common uncompressed PCM format.
The test functions give an exymple of how to use the SndRec_... functions:

SndRec_ReadFromWav(FileName):SndRec
   reads the specified .wav file and converts it into the internally
   used SndRec record with the following format:

     Channels      : Int32
     Samples       : Int32
     SamplesPerSec : Int32
     BitsPerSample : Int32
     Duration      : Real64
     Data          : Int32 2D
     Copyright     : Text

SndRec_SaveAsWav(SndRec, FileName)
   saves the sound record to a .wav file

SndRec_BuildFromWF(Waveform):SndRec
   builds a soundrec from a waveform (single channel)

SndRec_Merge(SndRec_Left, SndRec_Right)
   merges two SndRecs to one stereo sound rec

SndRec_GetChannel(SndRec, channel): waveform
   reads a single channel (0=left, 1=right) from a sound rec
   and returns it as a waveform signal

SndRec_Play(SndRec)
   plays the sound by first saving the record to a temp .wav file
   and then playing it from disk.

Ok, thats the first attempt to use the sound card.
Give me some response, if it is useful to you.

        Georg Nied
   Software-Development
Hansestr.7 - 51149 Cologne
        Germany
Mail: info@gn-software.de

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