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Searching inside an audio file

Posted: Fri Mar 28, 2014 4:17 pm
by ChrisSound
Hi,

is there a way to search inside an audio file?
The goal would be to make a phonetic search (or even better a text search) inside an audio file. I often have interviews where I want to find again the location where we talked about a specific topic (finding when we talked about a specific topic inside an interview recording is a pain otherwise).

I was wondering if there is audio the possibility to do something similar as Evernote is doing with image search: the image is not translated into text, but for each element is assigned a text probability so that you can search it (cf. http://blog.evernote.com/tech/2013/07/1 ... ion-works/).

Regards, Chris

Re: Searching inside an audio file

Posted: Fri Mar 28, 2014 4:39 pm
by kozikowski
Audacity has no Speech to Text tools and no search tools beyond Silent Sense.
We do however have labels. You can strike a key combination and Audacity will put a visible label at that point in the recording. As long as you Save the Project in addition to Exporting a WAV at the end of the interview, the Project labels will be there for you. I think you can put text notes inside the label, as well.

http://manual.audacityteam.org/o/man/label_tracks.html

Koz

Re: Searching inside an audio file

Posted: Sat Mar 29, 2014 7:50 pm
by Trebor
I just noticed recently that YouTube will automatically generate captions for speech in video, for free , and you can download the transcript it has generated. It's surprisingly accurate, (in my case better than 95%), although I suppose its transcription accuracy will depend on ones accent :)

https://support.google.com/youtube/answer/100076

Re: Searching inside an audio file

Posted: Tue Apr 01, 2014 2:13 pm
by ChrisSound
kozikowski wrote:Audacity has no Speech to Text tools and no search tools beyond Silent Sense.
Do you know if there is an existing software able to do that?
Trebor wrote:I just noticed recently that YouTube will automatically generate captions for speech in video, for free , and you can download the transcript it has generated.
I should look at this, that would be create, do you get the get the transcript as text or do you get it added inside a video?
Do you know if there is a Windows software doing this equivalent?

Re: Searching inside an audio file

Posted: Tue Apr 01, 2014 5:34 pm
by Trebor
ChrisSound wrote:Do you know if there is an existing software able to do that?
Microsoft Windows comes with speech-recognition ,
but it doesn't transcribe recordings, but "third party" software does ... http://answers.microsoft.com/en-us/wind ... 45c034abc5
ChrisSound wrote:
Trebor wrote:I just noticed recently that YouTube will automatically generate captions for speech in video, for free , and you can download the transcript it has generated.
I should look at this, that would be create, do you get the get the transcript as text or do you get it added inside a video?
The YouTube automatic captions are separate from the video, and can be downloaded ... http://youtu.be/kTvHIDKLFqc?t=2m12s