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5 votes

Filter to make music sound like it's being played in a mall?

Generally, you want to conceptualize this based on the reality of the situation you are trying to re-create. Firstly, shopping malls usually have crappy speakers, so imagine your sound being played ...
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  • 8,394
3 votes
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Kylo Ren Voice Changer

Well I've tried to come close : I used reaper, Izotope Trash 2 for saturation and Izotope Ozone 5 for multiband compression. 1. pitch shift - 3 semitones 2. Cut some ...
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3 votes
Accepted

What is the relation between high pass (low cut) filters and headroom?

Side note: BRHSM (OP) is refering to Geek Technique #12 in issue 222 of Computer Music magazine. Great question, BRHSM. I have three answers for you, but only one is true. I'll let you come to your ...
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3 votes

LAME: Why is a lowpass filter used with --preset insane

This is an anti-aliasing filter. The --preset insane settings must allow aliasing to become apparent. Your iPhone can't reproduce the frequencies the filter is applied to anyway, and if it could, you ...
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  • 2,176
3 votes

Why do the orders of hi/low pass filters go in 6 dB increments?

The 6 dB per octave roll-off is simply an approximation of the properties of the first order RC circuit - low pass filter design, i.e. it is not a convention or related to the fact that it is the ...
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3 votes

Basic pitch processing

What is causing this behavior? The tick sound is caused by a discontinuity in the derivative of your signal, producing a noisy sound at this very moment. How could (and should) I remove it? To ...
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3 votes

Software to identify words or voices in a recording?

The most relevant piece of software I could find is called Praat. It's free, and it offers spectral, pitch, and formant analysis—but it was developed for the study of phonetics. This is deep software ...
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3 votes
Accepted

How to filter guitar sound to create a backing track

Vocal isolation/eliminations plugins generally work on the principle that lead vocals are centered and are going to have a particular EQ range. Guitars don't really have any such standards. Your best ...
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  • 625
3 votes

Can a software generate a "midi" track from a song of musical notes of different instruments thanks to some filters?

DJ software like Native Instruments Traktor is pretty good at guessing the tempo by analysing a music track. It can also send out a MIDI clock signal that can be used to sync lights or something to. ...
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  • 2,863
3 votes

Removing pop sounds and heavy breathing from male voice

If you are using lavalier mics [tiny headset or tie-mics that look no bigger than a knot in the wire] then you should not set them directly in front of the mouth, but at the side, or even in the hair, ...
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  • 7,039
3 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

Yes, there are ways to try to reduce echo, but they also negatively impact the sound with artifacts. You can use features like gates to try to cut off when someone stops talking directly, but those ...
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  • 8,081
3 votes

What type of filter is the "French Low Pass Filter"?

All I know is it seems to be a reference to french house, the "french touch," which is a filtered-disco sound. Expect a prominent, musical filter, but I am not an expert on filter design so I can't ...
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3 votes

How can I improve this chain of filters to make a better voice with Audacity

Processing always has the negative side effect of either increasing noise or taking away from the quality. The secret to processing is you want to do as little as possible to achieve what you want, ...
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3 votes
Accepted

can you combine a high passed signal and low passed signal to get original signal

As long as you have identical rolloff characteristics - slope and frequency, the mix of the two will be identical to the original signal. Whether the filter alters phase or not depends entirely on ...
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  • 8,394
3 votes

how to separate an audio file based on different speakers

I don't know of anything that will do this automatically - perhaps some advanced broadcast reporter software [Hindenburg springs to mind], but that's outside my area. Many DAWs could do it manually at ...
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  • 7,039
2 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

See previous discussion here, SPL De-Verb is probably what you're looking for. You can watch a comparison between SPL, iZotope, Zynaptic in this YouTube video.
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2 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

I'd be far more inclined to try fix it at source first. There are several plugins I've tried that attempt to de-verb, but none anywhere near as successfully as just not recording it in the first ...
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  • 7,039
2 votes

Software to identify words or voices in a recording?

3 options: 1. Izotope RX4 in demo mode, is capable of detecting 'similar sounds'. I haven't used in on voices, but it could work. But you need to consider that it needs clean samples (in the same ...
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  • 2,906
2 votes

Reference: What are the common algorithms for crossovers?

I can't beat the Wikipedia page on crossovers, so I'll just block quote it: First Order First-order filters have a 20 dB/decade (or 6 dB/octave) slope. All first-order filters have a Butterworth ...
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  • 2,030
2 votes

Kylo Ren Voice Changer

I have just seen the following article where this sound effect is mentioned (http://www.latimes.com/entertainment/envelope/la-en-craft-star-wars-sound-20160204-story.html). It is interesting to note ...
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  • 1,470
2 votes

How can I improve this chain of filters to make a better voice with Audacity

I'm guessing there are going to be as many variations on this chain as there are answers. [It could reasonably be claimed to be "too broad" but here goes... My brain doesn't work in numbers, it works ...
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  • 7,039
2 votes

How can I improve this chain of filters to make a better voice with Audacity

The Audacity manual on this page has this to day about the order of applying effects: Amplification or normalization may be done before or after Noise Reduction. Do any Notch Filtering or Click ...
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  • 21
2 votes

How to keep audio-fequency noise from my refrigerator out of my audio gear?

This sounds like it may be a grounding issue. The most common source of such problems is differences or changes in ground between components. If that fixes it, you might want to start looking in to ...
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  • 8,081
1 vote

Filter or Eq out certain parts of the spectrum without introducing transient distortion

I'd say your best bet would be to use the Spectral Repair features of Izotope's RX package. Unfortunately, if you're filtering any sound you are inherently likely to introduce artifacting of some sort;...
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  • 1,336
1 vote
Accepted

Bandpass filter on omnidirectional microphone (experimenting)

Traditional voice range was 300 Hz to 3000 Hz. But that was for telephones where only basic communication was the objective. For singing, you need to include at least a couple octaves of overtones. ...
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1 vote
Accepted

A filter such that only frequencies present in both signal A and B pass through

Exactly, that's how vocoder and convolution reverbs work. What you are after is multiplication in the frequency domain, which is equivalent to convolution in time domain, and that's also how it is ...
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  • 126
1 vote

What is the relation between high pass (low cut) filters and headroom?

The idea of using high passes for the exact reasons you mention is spot on ("clean up muddyness and save headroom"): Regarding "muddyness": If the microphone is placed closed to the source, it may ...
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1 vote

Audio Filter for accent modifications

I think this is more to do with phoneme recognition and pattern recognition. I had a transcription job to do recently on a documentary where the subject was speaking English but with a pronounced ...
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  • 8,394
1 vote

Audio Filter for accent modifications

There are a lot of components that go into accents, ranging from how individual phonemes are articulated to sentence-level pitch contours. You can't hope to convert an accent into another one without ...
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