Development

Browse Source - to view Subversion repository containing VoxForge Speech Audio files, Acoustic Models, and Scripts;
RoadMap - to view the list of outstanding tickets for the current milestone;
New Ticket - to report a bug or request an enhancement.

create Acoustic Models (Linux, Windows) by 'compiling' your speech audio files into a Speaker Dependent Acoustic Model; or
adapt the VoxForge Speaker Independent Acoustic Model to better recognize your voice (Linux, Windows).

Available Projects

Other Dev Pages

    Create Acoustic Models
    Convert Audio to MP3 and Compare Results with Original Wav
    How to Manually Segment an Audio Book (Draft)
    Automated Audio Segmentation Using Forced Alignment (Draft)
    Documentation

VoxForge Dev - Trac

VoxForge Dev Wiki

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Create Acoustic Models

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Documentation

Recent Dev Tutorial/Howto Threads

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Best decoder for Automated Audio Segmentation by Sergey on 4/23/2008 @ 5:02 pm

Login incorrect by Sergey on 4/22/2008 @ 9:11 am

Automated word insertion in alphabetical order by Sergey on 4/20/2008 @ 10:01 am

Missing Words: Semi-automated approach by Sergey on 4/20/2008 @ 9:36 am

How to improve recognition by kmaclean on 4/18/2008 @ 2:04 pm

Automated Audio Segmentation accuracy by Sergey on 4/18/2008 @ 12:20 pm

Segmentation Script by Sergey on 4/18/2008 @ 7:09 am

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Automated word insertion in alphabetical order

By Sergey - 4/20/2008 - 2 Replies Hello,
Is there a way to add missing words to the VoxForgeDict in alphabetical order automatically?
If no, I will try to write a script.
Thanks,
--Sergey

Missing Words: Semi-automated approach

By Sergey - 4/20/2008 - 3 Replies Hello Ken,
I was trying to segment a real audio book now, and as expected, it has missing words. Step 2 of the tutorial "Add Missing Words: Semi-automated approach using Festival" suggests running MissingWOrdsCleanup.pl script. When I run it, I get an error:

/a/proj/voxforge$ ./missingwordscleanup.pl
festival -b MissingWordsPhonemes.scm
SIOD ERROR: not a symbol or string : (quote S)
closing a file left open: temp
closing a file left open: MissingWords
closing a file left open: MissingWordsPhonemes.scm
system festival -b MissingWordsPhonemes.scm failed: 65280 at ./missingwordscleanup.pl line 51.
/a/proj/voxforge$

and it creates an empty file MissingWords_out.
What might be wrong ?
Thanks,
--Sergey

Automated Audio Segmentation accuracy

By Sergey S. - 4/17/2008 - 9 Replies

Hi Ken,
On 32bit version of Ubuntu HTK compiled without a problem. Then I followed the tutorial "Automated Audio Segmentation Using Forced Alignment" without a hitch up to step 6. In Audacity I see a considerable misalignement between audio and labels. For example in the phrase "Chapter Four, Part One" the audio corresponding to label "part" contains sounds "part one", and the audio corresponding to label "one" contains only silence. Is it a normal misalignement or am I doing something wrong?
Thanks a lot,
--Sergey


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