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5 votes

What is the current state of the art in source separation? What tools are available?

The separation of instruments from a mix is something that seems easy to us. Humans can concentrate, for example, on a specific instrument being played in an orchestra. We can do this because we are ...
n00dles's user avatar
  • 2,584
5 votes

Options for unmixing sounds (source separation)?

Quick answer - No I haven't heard of any but I've heard about research being done on the field. The greatest theoretical problem with de-mixing is knowing what to subtract. When we mix, we add A and ...
Schizomorph's user avatar
  • 1,573
5 votes

How do I turn ordinary speech into something inaudible, in Adobe Audition? So it sounds a bit like mumble

Conversation can become indistinct due to several reasons: It's quiet There's much reflected sound (reverb) in the room There are many voices talking at once It's masked by a louder noise Experiment ...
Kurt Gibson's user avatar
5 votes

How do I turn ordinary speech into something inaudible, in Adobe Audition? So it sounds a bit like mumble

I think that comprehensible speech consists of vowels and consonants put in some order. Killing one of the two will make something incomprehensible. I would try to kill consonants to be more exact, ...
frcake's user avatar
  • 1,564
4 votes

Silence a small section of just one channel in a stereo recording (Audacity)

MountainX, I don't know if you ever got the answer you needed but I just found out how to do it. If you have a stereo recording in Audacity you click on "Audio Track" at the left of the stereo ...
user24125's user avatar
4 votes

What is the current state of the art in source separation? What tools are available?

I think the leaders in this field are without a doubt iZotope and Zynaptiq. iZotope RX is just the most incredible tool for separating sounds using FFT and spectrographic analysis: https://www....
Dale_G_sound's user avatar
3 votes

Microphone was too close, how to fix?

What you are asking for is pretty much like trying to take the sugar of a baked cake. There are tools that could help but I have no personal experience with them. From what I was told, iZotope RX ...
BadgerBadger's user avatar
3 votes
Accepted

Split Audio File Into Seperate Tracks?

I'm afraid what you are asking for could be the equivalent of taking a Victoria sponge cake & asking for the flour, sugar, butter & eggs back in separate bowls. If there are clear spaces ...
Tetsujin's user avatar
  • 8,691
3 votes

What is the current state of the art in source separation? What tools are available?

My website, monotoSTEREO.info, and its companion Facebook page may be of interest. It is dedicated to providing a collection of resources on audio upmixing using processes such as source separation ...
Christopher Kissel's user avatar
3 votes
Accepted

Removing vocals using multiple versions of the same song

If the vocals are in different languages then no, there is nothing that can be done to cancel them out automatically. If the different lyrics have gaps in different places then you could manually ...
Rory Alsop's user avatar
  • 6,044
3 votes

How can I merge two sound clips *without* crossfade to achieve a seamless transition?

Not unless you join at a zero crossing; i.e.where the wave crosses the centre line & has 'no volume' [but then, all your edits should be at zero-crossing anyway]. Even Audacity has cross-fade. It'...
Tetsujin's user avatar
  • 8,691
2 votes
Accepted

Why can't I isolate center-panned audio using inverse phase cancelling?

Yeah it would appear to work that way, but the math reveals something else: You have two channels, Left and Right, and you invert one, that is flip the sign on one channel and mix* them: Left + (- ...
Michael Hansen Buur's user avatar
2 votes
Accepted

How can layers of sound be distinguished, and therefore separated?

The most common vocal removal technique is based on the fact that in most songs the vocal is centred in the stereo spectrum, whereas a significant part of the other song components are not. It's ...
José David's user avatar
2 votes

Removing vocals using multiple versions of the same song

This may not be the answer you're looking for, but it may bring closer to what you want. The idea is not to remove vocals, but reduce the volume: you simply put all the all the different versions on ...
Michael Hansen Buur's user avatar
2 votes

Can't remove vocal from a specific song

The most common vocal removal techniques work by taking advantage of the fact that the vocal is usually dead center in the mix (it is equal on both left and right channels) whereas most other ...
little_birdie's user avatar
2 votes

Normalising volume across thousands of files

for normalization in todays crowded market - where we are experiencing "loudness wars" you do not want to be normalizing to peak levels. You normalise to a loudness standard. There is an open-source ...
Mark's user avatar
  • 8,890
2 votes

Easy way to remove spikes for the audio of a video file?

Your first problem with mixing this is that you have the main dialogue source panned hard left. I suspect you have a lavalier or remote wireless mic on the left channel, and camera mic on the right. ...
Mark's user avatar
  • 8,890
2 votes
Accepted

Is there a standard way to organize audio tracks?

No "standards" that I'm aware of, but what I've seen most often in film post-production is: Production Dialog ADR Group FX Design BG Foley Music
Jay Jennings's user avatar
  • 15.5k
2 votes

Options for unmixing sounds (source separation)?

There's actually one software company that claims to provide credible unmixing : audionamix. I am not affiliated with them, neither can I confirm their claims but there are demos on their website.
audionuma's user avatar
  • 2,834
2 votes

Options for unmixing sounds (source separation)?

In concurrence with other answers; generally "not really feasible" is the answer. I've had a play with iZotope RX5, a very interesting editor; draws the signal as a 2D frequency graph and has tools ...
Caius Jard's user avatar
2 votes
Accepted

Is it legitimate to use a low pass filter on short segments of audio around stitch between two amplitude signals to remove noise?

The answer is to be found in understanding what a crossfade is. A crossfade can be either "Constant Level" or "Constant Power". One is linear, one is logarithmic in shape. You need to build a table ...
Mark's user avatar
  • 8,890
2 votes
Accepted

Remove digital artifacts (clicking sound) from read errors on a CD-r

There are a myriad de-clickers available, from freeware Audacity - up through Steinberg's WaveLab - right up to Izotope RX. This site doesn't do specific recommendations, but you get what you pay for,...
Tetsujin's user avatar
  • 8,691
2 votes
Accepted

How to simulate distance with lavalier mic in post-processing

Contrary to some of the other answers, I wouldn't start with removing high frequencies with EQ. I would instead start with removing low frequencies. If the lav mics are cardioid, then they will ...
Todd Wilcox's user avatar
  • 2,280
1 vote

How to split a recording to music and talking parts

You can do this with a Vamp plugin from the BBC called "Speech/Music Segmenter". (https://github.com/bbc/bbc-vamp-plugins/blob/master/README.md) You will need a Vamp plugin host, Sonic Annotator ...
Civ77's user avatar
  • 23
1 vote

How to split a recording to music and talking parts

I was about to tell you what I was taught at university back in the early '00s, that de-mixing is still in experimental form and extremely hard but I thought I'd check if there's been any advances ...
Schizomorph's user avatar
  • 1,573
1 vote
Accepted

How is digital audio defined?

There are many audio formats, but generally, the file headers and format chunk can quite easily give you some specific format information if that's all you need; things like the amount of channels, ...
n00dles's user avatar
  • 2,584
1 vote

How to record the audio of one person's reaction to another person's line without overlapping audio?

Would suggest these options: let B tell a shorter, "essence" version of a dialogue line. More like a call to action for A. queue the person from a distance, so the mic barely picks it up. P.S.: I ...
Vospi's user avatar
  • 89

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