Creating wave files

Trying to use Sound File Open, Sund File Write,and Sound File close vi on MyRIO, and received an error message indicating these are not supported by the target. Is that indeed the case and if so is there an alternative wave to create wave files with MyRio. Thanks, norm

Hey Norm,
You are correct that these VIs only work on Windows. The help explains that these VIs use DirectX which is Windows only.
There are a number of alternatives depending on what exactly you are trying to do. You could log data to a binary file, then retrieve the file and use LabVIEW on a windows machine to read from the binary file and save the data as a wav file. You could also find a 3rd party Linux library capable of wav encoding (LAME maybe?). This would likely require you to build a helper .so to wrap the 3rd party library functionality which you would then call from LabVIEW using the call library funciton node.
Let us know if that helps or if you have additional questions.
Thanks!
-Sam K
LabVIEW Hacker
Join / Follow the LabVIEW Hacker Group on google+

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Creating wav files

Can it be done?
I have about 100 .wav files that I need to convert from 48khz to 48.048khz . I'd love to be able to use Compressor's automation to do this.

Jim Gilkeson wrote:
Can I create WAV files with GB?
no, but you can convert the AIFFs:
http://www.bulletsandbones.com/GB/GBFAQ.html#converttowav
(Let the page FULLY load. The link to your answer is at the top of your screen)

Need to create .wav file

Hi,
I need to create .wav file 1KHz left, 2KHz right, 1V peak, 10 Second, CD quality.
I am having trouble setting parameters samples/sec and other parameters.
Does anyone has example?
Any help would be helpful!
Thanks.
CVI 2010
LabVIEW 2011 SP1
Vision Builder AI 2011 SP1

Hi Sheetal,
Here is a small example that does what you need. The only thing that
you have to change is the "Gain" value so it matches your soundcard.
Have fun!
Message Edited by Philip C. on 09-02-2005 01:27 AM
- Philip Courtois, Thinkbot Solutions
Attachments:
SineWav.PNG ‏8 KB

How do I open a Quicktime created wav file in other sound editing software?

A friend sent me three wav files created in QuickTime but they won't open in ANY sound editing software or players I have other than Quicktime. I need to use these for an upcoming podcast but can't do anything with them until I can open them with my editing software (WavPad Sound Editing).
Can someone please tell me how to do this?

On a Windows system you can't. There is a plugin codec for WMV for the Mac version of QuickTime, but not for Windows. You'll need to use other software.
Regards.

Create wav file with freetts

i cannot create an wav file using the code given in freetts readme.
please help me to get out of this problem.
if possible give me the code to do this with the Player demo given with freetts.
my email id is [email protected]

Hi,
If you need to create a new command, you can use SAP Developer Studio. After deploy you will see it in
System administration->system configuration->cm->user interface->Commands.
There are examples about how to create commands.
You need to create your own layout set. This one use a resource renderer, here you must setup the commands group that you created.
After that, you create a navigation iview and layout set field you setup your layout set.
Patricio.

How do I get time stamped Wav files created in L7 to lock to time code?

Hello everyone,
I did a search about time stamping audio files and was VERY happy to discover the "broadcast wave" format timestamps audio files! So I'm running tests, but cant seem to get logic to actually place the audio file according to the time stamp!
Method: I'm currently scoring a film, and have each cue as separate logic files. To sync Logic's timecode and the TC window burn, I set in the "sync" song settings that bar 1 play at the start of the cue (no offset). For example, If I want to start writing a cue at 1:06:27:05, I just tell logic that bar 1 starts at 1:06:27:05 and start writing. Both logics TC & The window burn TC match perfectly. When I bounce, I choose my bars and bounce as a "wave," which creates a file with time code stamped. I verify this by looking at the file in the audio window, which shows a clock icon, as well as the specific smpte time code if you select the file before importing into the audio bin.
From here, how do I get logic to automatically place the audio files according to their time code? I've tried "import audio" directly into the arrange page as well as dragging the file over from the audio bin and neither work. I've also tried then "cutting" these and "paste at original position" hoping it would read the time code, but instead just pastes it where it was originally imported, not according to the time code.
So I'm stumped! What am I doing wrong?
thanks in advance for your help!

Highlight the regions and then from the audio menu select "move regions to original record positions"

ITunes will no longer play nor add to the library any mp3 files which I have created by conversion from a wav file.

I am running iTunes 10 on XP Pro and it will no longer play those mp3 files which I have created by conversion from wav files. I tried to delete some from the library and then re-add them but iTunes will not add them back to the library.
Can anyone help solve this, please?

Back up your purchased music before you upgrade, I've read at least 5 cases where purchased music has just gone.....missing.
That is not supposed to happen, didn't happen to me or thousnds of other iTunes users, but you don't want to be the 6th person, do you?
There are two things to try before you upgrade:
Barbara Hall, "Unknown Error (-208)" #1, 07:42pm Oct 19, 2005 CDT
http://docs.info.apple.com/article.html?artnum=302478

HT1550 No longer able to create ALAC version of a WAV file.

When I select a WAV file, song or album I bring up the menu and am offered, 'Create a WAV Version'. It is already a WAV file, why I would I want to create another. How come I am no Longer being able offered thje 'Create ALAC version Option? Anyone know what I need to do to be able to 'Create ALAC Version'?

artmanxxx wrote:
Thanks for the reply ed2345.
It doesn't help me. I used to be able to have WAV as my default import setting. Then if neccesary I was able to 'create ALAC version' by right clicking and selecting it in the menu. I can no longer do that.
Regards, Artman
Artman,
iTunes has always allowed exactly one import setting, and it applies both to CD ripping and to format conversion!
However, it is not that hard to change it and then change it back if you need a different setting for a different purpose, such as creating an ALAC version.

How to create a wav file from 24bit 96Khz sampling rate data

Hi
I am trying to make an VI which will play sound while acquiring data from PXI 4472 DAQ card.
My sampling rate is 96Khz and PXI 4472 card is a 24bit card.
Wave files are in 8 or 16 bit and the sampling rate is 8000, 11025, 22050 and 44100. How will I be able to play the data which I am acquiring.
How would i normalize the data into the required format needed for most of the sound cards to play.
Or are there any codec available in Windows XP which i call to play a 96KHz 24 bit sample
Does anybody ever encountered this type of problem.
Thanks in advance
Nitin

Whilst the 'standard' RIFF format specification usually accomodates 16 bit data, there is of course no reason that you can not create your own extension. It just won't be playable by Media player using the 'standard' installed drivers or codec. This may not be a problem....
WAV files can and do support other formats, you just need to know how to handle them......
There is howerver a 4GB limit (related to the pointer size in the WAV specification) which with higher bit depths on the sampling does start to become a bit of a problem.
To give you a few samples of other types of wav files check out the following site here
http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/Samples.html
The following definitions for WAV audio formats may also be of interest here
http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/WAVE.html
Good luck with 24 bits.

Bouncing individual tracks creates 2 wav files for each..why?!!

When I bounce individually selected tracks from Logic Express, it creates a double wav file in my folder for each track I bounce. It didn't use to do that and I haven't changed any settings... Please HELP :/

By "double wav" do you mean that you are getting a separate audio file for left channel and another for right channel, something like this?
Be sure to check in your bounce window that you have "interleaved" checked instead of "split."
Depending on how you're exporting/bouncing your tracks this may not help, but you can always solo the desired track and bounce your song with "interleaved" selected to get a single stereo file of that individual track.

How to create a comp from separate wav files

I have wav-files from a ProTools session, 3 takes (14 mics), so in total 42 (drum)racks.
I am looking for a way to create a Comp in Logic, so i can use the Quick Swipe Comping facility.
Anybody knows how to achieve this ?
Thx in advance,
Arno

Pull the files onto the arrange page then: *right click/folder/pack take folder*
Message was edited by: bill borez

Can i create AIF or WAV files larger then 4 gig?

Can i create AIF or WAV files larger then 4 gig? It seems like I have been doing that all along, but suddenly FCPX and Compressor 4 will not allow me to create and AIF file bigger then 4gig. It claims that the file format does not support sizes above 4

Hi...
per def. WAV 32bit does not support larger files than 4GB (sometimes 2GB).
You can use the BroadCast WAV format. Which will enable that.
However, if the destination format (Your final movie you wanna export to in Compressor and Fcpx) is WAV and not broadcast WAV it wont work due to the 4GB limit.
Aiff is limited as well.
Here are a few sources:
http://en.wikipedia.org/wiki/Broadcast_Wave_Format
http://en.wikipedia.org/wiki/RF64
http://en.wikipedia.org/wiki/WAV
PS --- WHy do you need more than 6 hours of uncomressed 16 Bit audio for a movie ???

I have just installed Itunes 11.0. When itunes creates a *.AAC file, does it put it in the same directory as where my .wav files are located?

I have an iPod Touch 64gb. I have 149 gb of .wav or similar format music. I have created a music library with the latter. How can I convert this library
into .AAC format so that the syncing process will be seamless? Should I create a new folder for the .wav files and put the .AAC files into
a subfolder in the itunesmedia folder? If so, how do I get itunes to put these files in that folder?
Thanks.

was this ever addressed

Exporting wav files creates 6 mono tracks

When I make a sound track in Soundtrack Pro from samples and effects loops and export it as a wav file for editing in FCP, it exports as a 6 mono track audio file instead of a single track mono or stereo file.
How can I set it so that the sound files export as single mono or stereo tracks? It is too tedious to deal with 6-track sound files in FCP.
Thanks for any advice.

1. Make sure your submix is set to stereo not mono.
!http://rdiv.com/screenshots/STP_submix.jpg!
2. Make sure you don't have the +Create multiple mono files+ box checked.
!http://rdiv.com/screenshots/STP_exportOption.jpg!

How to create a .wav file in visual basic?

I'm having the audio sample data(scaled data) in an array created by the CWAI_AcquiredData event. How do i convert this to a .wav file so that i can play back the audio data i acquired.
Can any one help me out ????????

Hello
You should probably check out the MSDN for examples on how to do this.
I think the Speech 5.1 SDK probably has some function that would help you out.
Hope this help
Bilal Durrani
NI
Bilal Durrani
NI

Creating wave files

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