Question

Voice Recording (.wav files) to Text (text file) convertors

Asked by: steve81182

Hi,

My company records the phone calls customer service staff have with our customers. These files are also exported as .wav files, archived and subsequently played back to monitor quality of customer service.

I am tasked with the job of investigating the possibility of converting these .wav files to text files that can be read.

Ideally i am looking for an API/system that can do this and be integrated into our exising system. Has anybody got any ideas? Also, obviously, because this is a customer-centric solution a system that "Needs to be trained..to recognize..." may be out of the question as we have millions of customers each with different voices.

Criteria :
(i)        Translate any .wav file to a text file.
(ii)        Relatively accurate 75% +
(iii)       Preferably an API in Java/C#.
(iv)      Needs to allow for integration into existing systems.

All ideas/work arounds welcome also.

Thanks

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Asked On
2008-12-11 at 03:23:17ID23975659
Tags

Real Audio

Topics

Streaming Media Players

,

Voice Over IP

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: bluebelldiscoveryPosted on 2008-12-11 at 06:52:48ID: 23148667

Hi steve81182,

  You can try Dragon AudioMining, it come with an SDK that support C# but not Java. See here
http://www.nuance.com/naturallyspeaking/products/audiomining.asp

The website claim that Version 10 is 20% more accurate than version 9 and Wav PCM is supported.

 

by: steve81182Posted on 2008-12-11 at 07:25:55ID: 23149007

Hi bluebell,

Good job, thanks. I will contact their sales channel and get back to you.
Are you aware of any free  java solution for this?

 

by: mattlandisPosted on 2008-12-11 at 08:11:47ID: 23149536

I'd be interested in hearing a ballpark cost on that product.

tx
matt
landiscomputer

 

by: bluebelldiscoveryPosted on 2008-12-11 at 17:23:48ID: 23154051

You can try Sphinx4. Open source java API. Their last release was in 2004 and they are suppose to release and other version end this year but so far no update.

http://www.speech.cs.cmu.edu/sphinx/twiki/bin/view/Sphinx4/WebHome

I don't think you can get good support compare to paid version.

 

by: steve81182Posted on 2009-01-06 at 14:30:20ID: 31524964

Hi bluebell, apologies for delay giving you your points. Was on long holiday. Good solution and i am nowinvestigating.

Thanks

20120131-EE-VQP-002

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