[audacity4blind] Re: high shelf filter
- From: Curtis Delzer <curtis@xxxxxxxxxx>
- To: audacity4blind@xxxxxxxxxxxxx
- Date: Fri, 30 May 2014 10:42:54 -0700
wow, COULD I USE THAT!, thank you for the kind efforts in this.
Curtis Delzer.
HS.
K 6 V F O
San Bernardino, CA.
curtis@xxxxxxxxxx
skype: curtis1014
On Fri, 30 May 2014 00:28:04 +0200
Robert Hänggi <aarjay.robert@xxxxxxxxx> wrote:
> Hi Brad
>
> I'm currently writing a plug-in that measures the threshold of hearing
> and might be of use to you (at least if you're on Windows).
> It's more accurate than a simple high-shelf filter because it uses the
> Audacity EQ bands.
> It works like this:
> Each plug-in call plays a specific frequency with ascending volume (3
> dB per second).
> The user presses space as soon as he hears a tone. This value will be
> stored and Ctrl-R plays the next sequence.
> After all bands, the result is stored and can be imported as a XML
> file into the Equalizer effect.
>
> The resulting curve makes that you hear all frequencies equally loud.
> Inverting the curve will attenuate frequencies where your hearing is
> weak and does therefore simulate your hearing experience for others.
> However, the test persons should actually take their profile too, or
> the filtered audio will not sound quite the same, i.e. it will
> probably be too strong.
>
> Although the concept is very easy, the programming is really hard due
> to the Nyquist limitations. Nevertheless, the main code runs and I
> hope to finish it by the end of the week. You and all other
> subscribers are welcomed to test it.
>
> Best regards
> Robert
>
> The audacity4blind web site is at
> //www.freelists.org/webpage/audacity4blind
>
> Subscribe and unsubscribe information, message archives,
> Audacity keyboard commands, and more...
>
> To unsubscribe from audacity4blind, send an email to
> audacity4blind-request@xxxxxxxxxxxxx
> with subject line
> unsubscribe
The audacity4blind web site is at
//www.freelists.org/webpage/audacity4blind
Subscribe and unsubscribe information, message archives,
Audacity keyboard commands, and more...
To unsubscribe from audacity4blind, send an email to
audacity4blind-request@xxxxxxxxxxxxx
with subject line
unsubscribe
Other related posts:
