4

There are definitely tendencies - and these mainly appear through the use of the same types of instruments in a genre, some more explicit than others, e.g. Drum and bass, Funk and A capella. Almost all modern electronic dance music uses a steady repeating kick drum and bass pattern - and as you note, this defines a good portion of the frequency ...


4

Audio sampled at 44.1 kHz (like normal audio CDs) can in theory contain content up to the Nyquist limit of 22.05kHz. However, you need a filter to remove all content above that limit, otherwise it folds back into the hearable range: you hear this as aliasing. A perfect, theoretical filter would remove all content above 22.05kHz and leave everything else ...


3

You can use Coagula. I believe it is the same software Aphex Twin used in Windowlicker.


3

It's a Logarithmic scale & is used where a linear scale wouldn't really make sense & would reduce the detail in the lower portions of the graph. As each octave doubles the frequency. The difference between, say, 50Hz & 100Hz is an octave, so is the difference between 5kHz & 10kHz. If that information were to be presented on a linear scale,...


3

All audio electronics create noise, including your interface itself. It's actually pretty good that the self noise of the interface is at around -100 dB. Even when all other sources of noise are eliminated in an electronic device (e.g., leakage from the power supply, EM radiation from outside the device, etc.), there is no way to eliminate thermal noise. ...


2

You are mostly seeing the difference in quality between a professional mic and audio interface rather than a laptop mic and built in consumer sound card. The lower frequencies are picked up well on both, but the higher frequencies are much less sensitive and much more sparse. If you look at the actual pattern of it, the pattern is relatively simple. ...


2

Im still not sure of your exact question, but I couldn't tell much from the audio recording you posted, and you only posted the waveform for 1 of the titillates. If you can post the original titillate you found online, that would be more helpful. If you're directly looking at waveforms, you're likely looking at a recording that has been processed with EQs, ...


2

A waveform is a period of superimposition of all the frequencies involved, each of which can be deconstructed into sine waves. Therefore a waveform will always represent those frequencies, theoretically. If the waveform is cut or sampled too short, some lower frequencies might be excluded. It is possible however to have different waveforms represent near-...


1

You can obtain very accurate audio spectrum analysis with a software analyzer. You must nevertheless be aware of the potential distortion brought by your acquisition chain (microphone + preamp) and take that into account in tour analysis.


1

There's also this project with some examples http://arss.sourceforge.net/examples.shtml


1

Here is a tentative answer based on the 192kHz 24-bit Japanese female speech sample: First I generate the test files from the sample file, sample02.wav: for br in 8 16 24 32 40 48 56 64 80; do for lq in 0 2 5 7 9; do printf -v f0 "out_b%02d_q%d" "$br" "$lq" lame -b "$br" -q "$lq" sample02.wav "${f0}.mp3" sox "${f0}.mp3" -r 96k "$...


1

lol, those "strange lines" (horizontal) are harmonics; and because this spectrogram is scaled linearly, they're evenly spaced; if it was scaled logarithmically, it would closer represent what we hear. ATM, all of the detail is crunched down at the bottom, down past 6 kHz, which we actually hear as quite a high frequency. I don't know about the crackling ...


1

Yes - most definitely this is to do with mp3 compression. Strings in particular require a much higher bitrate to be reproduced through mp3 without artifacts. You're not going to get much mileage out of a strings recording under 192kb/s. Adding a bell is just asking for trouble. The way that the mp3 encoding works will mean that the available bit rate is ...


1

I like Spectre. I have the Starter pack, it's pretty handy. App Store Link. You'll also need Soundflower to help do some internal routing so Spectre can hear the audio before it gets to your monitors.


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