I have several audio files and i wish to not use the built in voice manager, because of how they are organized.
When i play the files using teleflow (when i call in) they come out as basically just static.But, when i play them using just the boards software (call in -> pickup -> play wav file) it plays just fine over the phone.

Any ideas what i nee to change in teleflow to get it to play files correctly?
Audio settings
-11 kHz
-8 bit PCM wav file

Thanks for any help
-Noah S

Ok i figured out that it will work if i change everything into .vox files.

But is there a way that it will work with the wav files that i just dont know?

You have it right; TeleFlow only supports .Vox files for use with the Dialogic platform. Converting your .Wav files to .Vox files is a necessary step.

now that they are in vox files i tried running simulator or my other computer (one without the dialogic card) and it errored out the first time it tried to play a recording saying it couldnt play the file

HERES WHAT IT IS SAYING

2008/10/10 15:03:41.199: [55] Play
2008/10/10 15:03:41.209: Voice file name is 'VoicePrompts\DrinkersListGreeting.vox'
2008/10/10 15:03:41.219: Playing '\\.PSF\.Home\My_RMGroup\IVR\DrinkersList\VoicePrompts\DrinkersListGreeting.vox'
2008/10/10 15:03:41.319: Failed to open MCI element: 296
2008/10/10 15:03:41.329: The specified file cannot be played on the specified MCI device. The file may be corrupt, not in the correct format, or no file handler available for this format.
2008/10/10 15:03:41.339: FAILURE
2008/10/10 15:03:41.339: ERROR: Missing next step
2008/10/10 15:03:41.349: FATAL
2008/10/10 15:03:41.359: Attempting to jump to Fatal Error Global Event label: 'APPLICATION_ERROR'
2008/10/10 15:03:41.369: Setting system variable '@FATAL' to ''

The Vox files are required for the Dialogic platform, but are not supported by the Simulator.

The Voice Script Manager - if you were using it - would take care of most of this for you.

Since you aren't, you will need to control this yourself. Here's how:

Before Wait for Call, have a Compare step, that compares the TeleFlow system variable @TRUNK_TYPE with the word "SIMULATED".

On the true path, create/set a Global Variable named @REC_EXT to "WAV".
On the false path, create/set a Global Variable named @REC_EXT to "VOX".

On each step you play a file, substitute the file extension with the variable.

So, for example, if you play a file named "mainmenu.wav" or "mainmenu.vox", you would have a play with "mainmenu.@REC_EXT".

You must have both the vox and wav file versions of the files in the directory the application should locate the audio files in.


When using voice script manager, there is both a Simulator and Telephony field, which helps to better manage the two sets of files. (If you set your application's hardware type to Dialogic, the Voice Script Manager will record files in Wav format for the Simulator, then convert them to Vox for running on the hardware)

ok everything was working great.....

We were using some files recorded off a laptop mic for testing system then we went got everything recorded well and received our wav files as 44.1/16bit

when i copied files over to server the voice play rrreeeaaallly sllooww sounding?

ive tried everything, the only way i can get files to be correct speed is if i use
a different vox converter and convert each file by hand to 4bit/8kHz vox files

but now they are sounding worse then the original files.

to test i went back and converted and old file that used to play corretly with the teleflow converter to vox, and this file still played sllooowwwer.

any ideas why the files converted by teleflow are playing slow?

did somehow the settings on my Dialogic D4pci change? is there a way to change them back i cant find any audio preferences in any of the dialogic settings or forums.

Thanks for your help

So i did some more trouble shooting last night and have same to the conclusion that somehow the settings on the board have been changed.

This is because i tried playing on the the .vox files for my other IVR project that was working and now it is also playing slower.

I talked to dialogic and they said they only way to change the settings is through the API meaning that somehow teleflow changed settings?

The dialogic boards seems to currently be set at: 4bit / 6kHz when i believe it used to be 8bit/ 8kHz

Thanks for any help im stuck right now and cant do anything

TeleFlow does not modify the audio settings of the Dialogic board. It passes information to the API at the time it requests the play.

The audio format that TeleFlow expects is:

file format = VOX
data encoding = Dialogic ADPCM
sampling rate = 8 KHz
bits per sample = 4

TeleFlow is picky about this, and it will play the audio file using the above format regardless of what is actually contained in your .vox file.

Ok makes sense...

What should my next step be if when I use teleflow to convert all my wav files they come out playing really slow?

Wav: 44.1 / 16bit

ok found problem my original files were stereo so when teleflow was converting it left as stereo and when they were playing it was the bits twice( well left bit then right bit)

which in turn caused the files to be played at half speed (or sounding like it)

thanks again for your guys help now i just need to make files sound better at lower bit rate.

Can you confirm something? Were you using the TeleFlow Script Manager to convert those stereo files?

hi
i have dialogic d/4pic

is use file .Wav pcm File 8000Hz Mono 16bit , but not support
possible teleflow with dialogic support other format or .Wav other bit rate.

why?
i test call with .Vox File is true , but .Wav File is false ?
and
ascendency .Vox files against .Wav File ?

TeleFlow's Dialogic support includes .vox files only. You will have to convert your .wav files to .vox. If you are using the TeleFlow Script Manager to manage your audio, you can use it to convert all of your audio for you.

Firstly, on your main application page, you need to ensure your Settings indicate the "Application Voice Hardware" is set to "Intel / Dialogic".

Then you can open the TeleFlow Script Manager, select "Tools" on the pull-down menu, and then select "Create & convert telephony voice files".

Hi Tim

why Telefow use of .vox file ?
advantage .vox file against .wav file ?

more IVR applacation , example ,Voiceguide ,SqlPhone , Ivm answering , and ...
use wave file in dilogic hardware

please steerage me

tnx

This isn't really a case of advantage (although, Vox files are compressed, which makes moving them to different systems faster), but of necessity. Because TeleFlow supports multiple hardware vendors, using Vox on Dialogic was the easiest way to provide support for differing audio formats on different hardware, since there were differences in the wav formats supported.

This decision was made in the early 1990's, when Dialogic supported very few audio formats, and DSP power was at a premium. Their .VOX format was the easiest to support, and optimized to work on their cards.

Today, TeleFlow supports three hardware vendors: Ai-Logix, Natural Microsystems, and Dialogic. We standardized our .WAV support on 16-bit 8000 Hz Mono PCM. So, if we supported .WAV on Dialogic, that is the format we would aim for.

The biggest hurdle we have with audio support is that there are way too many formats to choose from. Supporting them all is of little benefit. Regardless of the format underneath, the experience to the caller is the same. The application plays and the caller hears the message. We have chosen to focus our efforts on improving our product in other ways, and have given the application developers the tool, in the script manager, to convert the audio to .VOX.

I hope this clears things up.