Re: [SoX-users] Record of Voice

[onkel b. <onk...@gm...>]

Speech-to-text engine -->
http://mikepultz.com/2011/03/accessing-google-speech-api-chrome-11/

When i speak and the engine gives a string back, my different modules check
if special keywords are in the string (like "remind me" or "start pc one").
Then special action start (send a WOL packet or start a remind-me-skript)
and i start a voiceoutput with a text-to-speech engine. But this all works
fine! :)
I use this micro for that:
http://www.amazon.com/Audio-Technica-ATR-4697-Omnidirectional-Condenser-Microphone/dp/B002GR7INW/ref=cm_cr_pr_product_top

With the command "rec -c 1 -r 16000 -t flac temp/rec$i.flac silence 1 0.1
7% 2 1.0 5%" the system stops nearly every 10 seconds the record in my
environment and would send it to the internet. The robot should run 24/7 so
it is not an alternative to send every 5 to 10 seconds files without
content to the internet. Because of that i build the "Rough
frequency"-Filter.

>You can use a band filter to only record the frequency range
>of the human voice, and then use the compander to make
>the signal somehow uniformly strong

Can you give me an example command for this? Maybe this could be an
alternative to my "Rough frequency"-Filter when just voice will be
recorded?!


2013/1/29 Jan Stary <ha...@st...>

> On Jan 29 18:01:17, onk...@gm... wrote:
> > Hello,
> >
> > i am programming an Voicerobot (in BASH and PERL) who can start PCs,
> remind
> > me of things, can tell me how the weather is and so on. (like JARVIS in
> > Iron Man) Much more things will be added in future.
> >
> > The Robot is ready, but i have a problem with the record of my voice. For
> > now i record the voice with following command:
> > rec -c 1 -r 16000 -t flac temp/rec$i.flac silence 1 0.1 7% 2 1.0 5%
> > (the flac format and 16k rate is given by the speech-to-text engine)
>
> What speech-to-text engine?
>
> > The recording of the voice work in a loop because he should listen all
> the
> > time and not when i push a button or something else.
>
> Ah, so it listens all the time, and when you speak a command,
> it rewrites the command to an actual shell command,
> and runs it. Right?
>
> > This work good in close ranges to the microphone. But when i go far away
> > the speech-to-text engine isn't able to understand me.
>
> That's understandable.
> What speech-to-text engine?
>
> > Because the speech-to-text engine is in the internet, i build a filter
> just
> > send records where voice is supposed. I grep the "Rough   frequency:"
> value
> > of following command:
> > sox temp/rec$i.flac -n stat
>
> You mean, you only send voice to be processed
> if it is roughly in the spectrum of human speech, right?
>
> > Now my questions:
> > Is there a way to determine if the voice is near or far away and when its
> > far away, boost the voice frequency or something like that?
>
> There is weeak signal and strong signal,
> whether it is due to the source being far away or not.
> You can use a band filter to only record the frequency range
> of the human voice, and then use the compander to make
> the signal somehow uniformly strong.
>
>
>
> ------------------------------------------------------------------------------
> Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS,
> MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current
> with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft
> MVPs and experts. ON SALE this month only -- learn more at:
> http://p.sf.net/sfu/learnnow-d2d
> _______________________________________________
> Sox-users mailing list
> Sox...@li...
> https://lists.sourceforge.net/lists/listinfo/sox-users
>