[audacity4blind] Re: amplitude and time line
- From: David Bailes <david_bailes@xxxxxxxxxxx>
- To: audacity4blind@xxxxxxxxxxxxx
- Date: Fri, 22 Nov 2013 14:58:17 +0000 (GMT)
Hi Steve,
I was wondering whether it might be simpler just to have a single dialog box.
Assume that the users are only interested in say 1 decimal place, and just say
what the peak value or values are. Probably just in db would be ok, maybe.
David.
--------------------------------------------
On Wed, 20/11/13, Steve the Fiddle <stevethefiddle@xxxxxxxxx> wrote:
Subject: [audacity4blind] Re: amplitude and time line
To: audacity4blind@xxxxxxxxxxxxx
Date: Wednesday, 20 November, 2013, 23:06
As there has been no feedback, I'm
wondering if perhaps the plug-in is
not useful, or if you were not able to download it, or not
able to
install it, or just couldn't be bothered to reply. If it
needs some
changes to be useful then I'm happy to modify it, but
without some
feedback I've no way of knowing what, if anything, needs to
be
changed.
I'm guessing that the "Amplify Effect" work-around was
sufficient for
the task and that a separate Analyze tool is unnecessary. If
that's
the case, could someone let me know and I'll not bother
uploading it
to the wiki.
Steve
On 7 November 2013 15:35, Steve the Fiddle <stevethefiddle@xxxxxxxxx>
wrote:
> Hi all,
> This question seems to be quite regularly, so I've
written a plug-in
> to address the issue.
> It is a simple "Analyze" plug-in which, when installed,
appears as
> "Amplitude..." in the "Analyze" menu.
>
> The plug-in, with full instructions for installation
and usage, is
> available on the Audacity help forum here:
> http://forum.audacityteam.org/viewtopic.php?p=227943#p227943
>
> Please let me know if you find this useful, or if you
have any
> problems with it, or if you think it could be modified
to be more
> useful.
>
> There is also a plug-in available on the wiki called
"Peak Finder"
> that will create a label at the point where the highest
peak is found.
> The label text shows the peak level in dB. This plug-in
is supposed to
> be able to produce labels for multiple peaks if there
is more than one
> at the maximum level, but in practice this rarely
occurs, unless the
> audio is clipped at 0 dB. "Peak Finder" is available
here:
> http://wiki.audacityteam.org/wiki/Nyquist_Analyze_Plug-ins#Peak_Finder
>
> Steve
>
>
> On 7 November 2013 12:29, David Bailes <david_bailes@xxxxxxxxxxx>
wrote:
>> Hi Brad,
>> to find the peak amplitude in a track, you can use
the amplify effect dialog.
>> 1. Select the audio in the track. (select the
track, and then press j followed by shift+k).
>> 2. Open the amplify effect on the effect menu.
>> 3. When this opens, then the value in the amplitude
(db) edit box show the amount of amplification needed so
that the peak value would be maximum (0 db). So if it was
15, then the peak in the track is 15db below maximum.
>> 4. press esc to close the dialog without applying
the effect.
>>
>> Reading the timeline:
>> you can read the position of the cursor/selection
start by pressing left bracket when there's no playback. A
dialog opens which give the time.
>> Similarly you can read the end of a selection by
pressing right bracket when there's no playback.
>>
>> You appear to be using an old version of audacity,
that is 1.3.14 alpha. Is there any reason why you're not
using the current version (2.0.5)?. As far as I'm aware this
should be ok on a mac.
>>
>> David.
>>
>> --------------------------------------------
>> On Tue, 5/11/13, Brad Erhardt <brad.erhardt@xxxxxxxxx>
wrote:
>>
>> Subject: [audacity4blind] amplitude and time
line
>> To: audacity4blind@xxxxxxxxxxxxx
>> Date: Tuesday, 5 November, 2013, 1:33
>>
>> Hello all again,
>> does anyone know if it is possible for us
blinkers, :-)
>> Visually impaired or blind people, to know
the peak
>> amplitude for an existing track. Also is
there a way to read
>> the time line. I believe Audacity shows these
things
>> visually.
>> I am using Audacity 1.3.14
>> alpha on a macintosh system running OS X
>> lion.
>> TTFN,
>>
>> Brad
>> Erhardtbrad.erhardt@xxxxxxxxx
>>
>>
>>
>>
>>
>>
>> The audacity4blind web site is at
>> //www.freelists.org/webpage/audacity4blind
>>
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