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by steve
Sun Jul 27, 2014 6:36 pm
Forum: General Audio Programming
Topic: NoiseRemoval.cpp
Replies: 138
Views: 28905

Re: NoiseRemoval.cpp

There's a proposal on the wiki that I think is worth reading: http://wiki.audacityteam.org/wiki/Proposal_Noise_Removal I was particularly encouraged by the preliminary tests of "Spectral Subtraction" (the current effect is more like a "spectral gating" type effect). Though I don'...
by steve
Sun Jul 27, 2014 5:03 pm
Forum: General Audio Programming
Topic: NoiseRemoval.cpp
Replies: 138
Views: 28905

Re: NoiseRemoval.cpp

Most of my suggestions (along with the opinions of others) have been rolled into the documentation in the new 2.0.6 (alpha) manual: http://manual.audacityteam.org/man/Noise_Removal
by steve
Sun Jul 27, 2014 10:50 am
Forum: General Audio Programming
Topic: NoiseRemoval.cpp
Replies: 138
Views: 28905

Re: NoiseRemoval.cpp

If I recall (I've not checked the code), the DC component is discarded.
by steve
Sun Jul 27, 2014 6:09 am
Forum: Windows
Topic: 2.0.6-alpha-Jul 22 2014 - Doesn't load the FFMpeg Plug-Ins
Replies: 10
Views: 1697

Re: 2.0.6-alpha-Jul 22 2014 - Doesn't load the FFMpeg Plug-I

On Windows you can run different configurations by making one or both versions "portable". That is, so that the settings are stored within the program folder rather than in the users' profile. To do that, create an empty folder within the Audacity program folder and name it "Portable ...
by steve
Sun Jul 27, 2014 6:02 am
Forum: Windows
Topic: Why do the mp3's I make through audacity have muffled sound?
Replies: 13
Views: 2139

Re: Why do the mp3's I make through audacity have muffled so

The diaphragm inside an SM57 or SM58 floats. If you play your cards right, the soundcard will record the main voice and the protection signal (pin2 and pin3) "straight" which means two copies of the same show, one upside down. A reasonable conjecture. An audio sample will soon confirm. We...
by steve
Sun Jul 27, 2014 5:59 am
Forum: General Audio Programming
Topic: NoiseRemoval.cpp
Replies: 138
Views: 28905

Re: NoiseRemoval.cpp

2) I understand why there is division by 20 calculating mNoiseAttenFactor. I understand why division is by 10 not 20 when computing mSensitivityFactor because it is used in comparison of squared amplitudes. I do not understand why division is by 10 not 20 when computing mOneBlockAttackDecay which a...
by steve
Sun Jul 27, 2014 5:38 am
Forum: Windows
Topic: Why do the mp3's I make through audacity have muffled sound?
Replies: 13
Views: 2139

Re: Why do the mp3's I make through audacity have muffled so

My guess is that your recordings are too "hot" (the level is too high) so they are distorted, but the problem does not show up on your laptop speakers or car speakers due to limitations of those speakers. For serious audio work it is essential that you have reasonable quality speakers or h...
by steve
Sun Jul 27, 2014 5:31 am
Forum: GNU/Linux
Topic: Freeze when hitting the play/ pause / stop button
Replies: 14
Views: 11337

Re: Freeze when hitting the play/ pause / stop button

I've been using Audacity for years with different version of Ubuntu, and it decides to break with a new version. As a general point, Ubuntu is an early adopter of new technology and new versions. The plus side is that Ubuntu users get to be among the first to try out the latest and greatest softwar...
by steve
Sat Jul 26, 2014 4:48 pm
Forum: Audio Processing
Topic: Need to break long tracks into sections without losing flow
Replies: 4
Views: 1891

Re: Need to break long tracks into sections without losing f

As far as I know the only way to get truly gap-less (and glitch less) CD tracks is to use CD writing software that supports working with a single wav file plus "cue sheet". Perhaps the case many years ago, but there have been programs available for many years that are able to write gaples...
by steve
Fri Jul 25, 2014 7:56 pm
Forum: Audio Processing
Topic: Compressor: shorter attack/release times?
Replies: 59
Views: 16702

Re: Compressor: shorter attack/release times?

That's a historical point. Earlier versions of the Audacity compressor used the term "Decay" instead of "Release". Pleased to say that I persuaded the developers to change it. The word "decay" was probably used so as to be consistent with the Audacity effect, but yes, i...