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 ...
- 1,573
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 ...
- 2,690
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 ...
- 331
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, ...
- 1,582
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 ...
- 41
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....
- 374
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 ...
- 181
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 ...
- 8,735
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 ...
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'...
- 8,735
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 ...
- 8,928
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. ...
- 8,928
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
- 15.5k
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 ...
- 121
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.
- 2,874
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 ...
- 8,928
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,...
- 8,735
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 ...
- 2,336
1
vote
How do I amplify a WAV file without adding distortion?
How do I amplify without distortion?
Most DAWs like Audacity allow you to apply gain to an existing recording. Sometime's it's called "clip gain" or "trim". You can get away with this to a certain ...
- 161
1
vote
How do I amplify a WAV file without adding distortion?
You actually need to increase the signal-to-noise ratio rather than simply "amplifying" the signal. To do this you need a noise reduction tool such as Izotope RX Spectral denoiser.
- 8,928
1
vote
When you Know it Needs Something Else
Well, in the abstract, you could begin by literally experimenting. The "sound" you have created, whether it be a single instrument or a few, still has sonic characteristics. As a first step, try ...
- 11
1
vote
Accepted
For voice editing, should I change the cutoff frequency with each note pitch?
You could make a simple experiment to find out. Sing the same phrase in two (or more) different pitches, isolate the 's' and play them next to each other.
My suspicion is that they will sound very ...
- 1,573
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 ...
- 89
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 ...
- 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 ...
- 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, ...
- 2,690
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