Thanks to you too Andrew for all your help. I have quite a few of your posts
saved for reference as well.
StanB
-----Original Message-----
From: audacity4blind-bounce@xxxxxxxxxxxxx <audacity4blind-bounce@xxxxxxxxxxxxx>
On Behalf Of Andrew Downie
Sent: Thursday, February 4, 2021 8:58 PM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] Re: Compression and equalisation
Following on from Adrian's experience: my experience in Audacity is the same.
I was careful to select the 32 bit version. The parameters are available in
Reaper. So far very limited playing, but seems nice in the Reaper environment.
Andrew
-----Original Message-----
From: audacity4blind-bounce@xxxxxxxxxxxxx <audacity4blind-bounce@xxxxxxxxxxxxx>
On Behalf Of Adrian Mifsud
Sent: Friday, 5 February 2021 12:06 PM
To: audacity4blind@xxxxxxxxxxxxx; Robert Hänggi <aarjay.robert@xxxxxxxxx>
Subject: [audacity4blind] Re: Compression and equalisation
Hi Robert,
I just downloaded TDR SlickEQ. Sounds great.
When I select it from effects the dialog box only seems to read the buutons, no
parameters.
I use NVDA.
Is it not accessable?
Thanks
Adrian
On 4/02/2021 10:37 pm, Robert Hänggi wrote:
Some tips on the order:
Equalization normally comes first. Especially the low end should be cleaned
up.
It's enough to apply a high pass filter there, e.g. 12 dB/Octave at
100 Hz for a male voice.
It is also good to de-ess the vocal (at 4 to 8 kHz) since all those
sounds are usually louder after compression. If the high frequencies
are generally to bright, you could use bass and treble to reduce them
a bit.
Considering also a noise gate to push background noise further down
before applying compression. The noise reduction tool is in the same
category, the difference is that it is multi-band instead of a single
band ordinary noise gate.
You can of course also apply equalization a second time after
compression to balance the spectrum further, e.g. to bring back low
end or lift it all by adding presence (high shelf at 8 to 15 kHz).
As usual, I recommend the free TDR SlickEQ because it can adjust the
output level automatically. It's thus a great learning tool since you
can adjust a specific frequency and hear how the rest of the spectrum
will change.
Robert
On 04/02/2021, Brian Williams <werewolvesdad@xxxxxxxxx> wrote:
Hi Andrew, a very interesting article you linked to. At first readingThe audacity4blind web site is at
sounds quite complicated but, where I am, it’s only 7 o’clock in the
morning. Will listen later in the day and experiment. Thank you for
your help, very useful your help and advice is much appreciated. Best
wishes Brian.
On 4 Feb 2021, at 3:32 am, Andrew Downie <access_tech@xxxxxxxxxxxxxx>
wrote:
Hi Brian
I delayed a response, hoping that someone with more expertise would reply.
So, from someone with rudimentary knowledge, here is a start.
Compression
I found a good summary of the various parameters on this page. There
are some visual references, but the text describes things pretty well.
I suggest you read it, perhaps after reading my brief discussion.
If you check out the Compressor under the Effects Menu in Audacity,
some of the parameters they describe, notably knee, are not offered.
However, most are.
One thing I noticed when using Audacity’s compressor with NVDA,
Narrator and JAWS is that when tabbing through the parameters
percentage values rather than actual values are given. The relevant
setting, such as minus 12dB, is not announced without using Review.
Happy to provide specifics for getting those important values if required.
The really important parameters are threshold and ratio. If, for
example, you set a noise floor of minus 15dB nothing below that level
will have its gain adjusted. A higher ratio will result in increased
compression. A ratio of 1:1 will do nothing. A ratio of 2:1 will,
for example, reduce a signal 2dB above the threshold to 1dB above the
threshold.
As the article mentioned above said, use your ears to judge the merit
of the compression. I have found that for spoken word, especially
mine, I need to use quite aggressive settings to even out
fluctuations. That also increases the risk of amplifying unwanted sounds.
Equalisation
The concept is simple, but making suitable adjustments can be
tedious. As with compression, you need to listen to the sound and
decide what sounds you want to highlight and which ones you want to push
into the background.
Check out the graphic Eq in Audacity. For frequencies between 20dB
and 20,000dB you can raise or lower the level. In this case, NVDA
reads the dB values, but JAWS does not.
There are more sophisticated equalisers. However, the graphic Eq in
Audacity will amply demonstrate what happens when you change values
for various frequencies.
Andrew
From: audacity4blind-bounce@xxxxxxxxxxxxx
<audacity4blind-bounce@xxxxxxxxxxxxx> On Behalf Of Brian Williams
Sent: Monday, 1 February 2021 6:47 PM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] Compression and equalisation
Hi all has anyone recorded any tips on equalisation and compression?
I’ve looked on YouTube but nearly all the videos after do it visually
by saying, “we do it by the soundwave here,“ or “we just adjust it
By clicking here and by clicking here and here.“ Brian
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.fr
eelists.org%2Fwebpage%2Faudacity4blind&data=04%7C01%7C%7Ce5d354ebb
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37480880969107519%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
V2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=WBWl0M1jyg%2F%
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