Questions tagged [frequency]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
36 views

Change audio's frequency, but still sound similar

I have some WAV format audio files with a frequency of 48Khz and I want to load them into the program I'm making. The program however only accepts up to 44.1Khz (CD music quality) due to hardware ...
0
votes
2answers
127 views

44100 Hz encoded in 24bit vs 16bit

I'm learning the basics of audio recording and mastering and I was thinking to some of my purchased audio collection. I have some assumptions that I feel may be incorrect or incomplete and would like ...
0
votes
2answers
51 views

Microphone with wider frequency range or higher sensitivity for better qualtiy?

For instance I've put my eye on two mics (cardioid condenser ones). One has -90dB sensitivity and frequency range of 20 - 20 000 Hz. The other on has -46dB sensitivity and frequency of 50 - 15 000 Hz....
0
votes
2answers
61 views

Subliminal messages in MP3

I have purchased a set of MP3 files (with classical and binaural music) that claims to have embedded in them messages at a frequency that people cannot hear -- i.e., subliminal messages (these are for ...
1
vote
1answer
79 views

Why can I hear this beep at 6 kHz and others cannot?

During a studio recording, I heard a beep and paused the recording. I played it back and neither the actress, sound technician, or assistant director could hear it. I imagined that it could be the ...
0
votes
0answers
26 views

What is this empty space in this spectrogram? I have this is some lossless high kHz files

I have this with some albums. Is this something to worry about or is this normal? Or am I missing out on something?
0
votes
1answer
24 views

Recording sound and getting the frequency of any given point

Not entirely sure if this question goes on this site, but I think it covers this one more than the others. I need to record some audio of human speech and find the frequency of the audio at least 100 ...
1
vote
1answer
39 views

What's the lowest analog audio sound that a CD/44.1kHz audio system can make?

CDs, and other 44.1kHz sampling audio systems, can produce a maximum sound frequency of 20khz in the analog audio range (I'm not sure how the maths goes, but that's apparently true). My question is, ...
0
votes
0answers
24 views

Logic EQ creates frequencies

This is probably something standard but it's the first time I encounter it and I don't really know where to find an explanation. Let's say I produce a sine wave at e.g. 440 Hz on Logic. If I then ...
0
votes
0answers
18 views

Trying to reproduce a constant frequency

I work on an engine which when the throttle is not active seems to have like a constant frequency, I have some examples to analyze. But with the natural inertia at low velocity it's hard to have a ...
0
votes
0answers
28 views

Filtering a noise for a sample

I've recorded an engine and I was look for some type of sample: the first (original record) with the engine in rev (throttle active). The second, the engine without adding throttle. Some examples on ...
2
votes
1answer
39 views

VCV Rack - what is the maximum frequency deviation for FM?

On VCO-1, the amount of FM can be controlled by the "FM CV" knob, which ranges from 0%-100%. I'd like to know the frequency deviation that VCV uses at 100% modulation. I did a few tests to try to ...
7
votes
9answers
7k views

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

A .wav file created from a .mp3 file has the same frequency domain plot as the mp3 file itself. However, the .wav file created from .mp3 file has larger file size. According the post https://...
3
votes
1answer
63 views

Can steady-state noise contain a fundamental frequency?

I am doing speech-in-noise testing. We use the so-called matrix test. The Flemish/Dutch version of this test features a female speaker. I ran some sentences through 'Praat' and it provided me with a ...
0
votes
2answers
59 views

How do you change the equalisation of an individual song/audio?

I've been looking for weeks, and I have nowhere else to turn to. I really thought this would be very simple to find, but I'm looking for any type of software that has a 5 band equaliser, that allows ...
-1
votes
1answer
64 views

Is it possible to seperate an audio file into each frequency of it automatically?

So lets say I have an audio file, "hello.mp3". I want to split this file into all of its frequencies, so if the audio file contains 12hz, 412hz and 200hz, I get files containing those frequencies.
1
vote
1answer
129 views

What is the true definition for the length of a pulse (impulse-type sounds)?

What defines the length of a pulse (impulse-type sounds)? i.e. snaps, pops, crackles, bangs, bumps, and rattles. The following 4 pulses are all white noise sustained for 37 ms, but each pulse has a ...
1
vote
1answer
91 views

What would cause a recording to have a completely symmetric frequency plot?

I'm developing software that receives PCM audio data and converts it to a WAVE file. The audio stream has the following characteristics: 16 bit signed integers 6000 frames sent every 1/8th seconds, ...
0
votes
6answers
990 views

How do I shift the frequency of a track by x Hz?

I have been meditating using binaural beats for some time. I was wondering if the effects could be achieved by using an audio track instead of a static noise. My idea was to take a song, convert it ...
0
votes
1answer
46 views

What frequency / quality for voice clips?

I am looking at making some voice clips for teaching languages. I am using Audacity, but am not sure what settings to use. Many people recommend 44,100Hz for regular music recordings. Is this also the ...
-1
votes
1answer
60 views

How do I fix the frequency of my audio?

I am editing some audio files of an existing game. The current frequency rate Im using is 6500hz and the music sounds pretty bad. P. D If I use 44100hz there will be a lot of noise. I am using ...
0
votes
1answer
133 views

Is a shorter range frequency response better for audio quality

So i'm a designing a speaker system and im choosing between two midrange drivers: Tymphany TC9FD18-08 3-1/2" and Peerless SLS-85S25CP04-04 3-1/2" the frequency responses are 100 to 20,000hz and 70 to ...
0
votes
1answer
264 views

Audio spectrum analysis: PC Software vs Hardware Spectrum Analyzer

I need to do some audio spectrum analysis (basically, listening to a machine and tell if it is properly calibrated). I will record the sound it makes with a microphone (it sounds differently if it is ...
2
votes
2answers
200 views

Conditional math (intersection) to join two audio tracks

I do not want the difference. I want the intersection of frequencies. The problem: I have two audio files. One of the files (A) contains the vocals and drums. The other file (B) contains the vocals ...
3
votes
2answers
8k views

What does 100Hz 12dB per octave mean?

I have been trying to understand what 100Hz 12dB per octave means in a low pass filter. What does it really mean in full details? Any material can be of help.
1
vote
0answers
116 views

7 band EQ frequencies for full-track playback?

I used to have a Mackie analog mixer, but I've switched over to using a midi controller (Launch Control XL), and I'm not limited by the 5 bands that existed on the Mackie (low cut, 80, 250, 800, 2500, ...
1
vote
1answer
39 views

Extract wavelengths or frequencies out of a recorded sound

I have recorded 1 minute of almost silent in woods. there is mostly wind and grass moving sounds. Is there any way to extract wavelength ranges out of it? I only need to know the numbers. I don't want ...
0
votes
1answer
277 views

Intensity, amplitude, frequency, and perceived loudness

If we were to measure loudness solely as a property of amplitude, then high frequency sounds, which contain high energy, would have the same value as low frequency sounds, which contain low energy. On ...
0
votes
2answers
73 views

How much sound quality will I lose using a headphone which works only with frequencies above 80Hz? [closed]

I don't mean like... voice messages, but, music! Specially blues, metal and rock which tend to have lower pitch tones.
2
votes
1answer
108 views

Purely Mechanical Acoustic Frequency Converter

I'm an electrical guy, so I know how to make a frequency converter electrically. Or by using software through resampling, etc. My mechanical understanding of the world is much more lacking. What I'm ...
0
votes
2answers
248 views

Frequency modulation with sound instead of radio waves

I would like to be able to hear a simulation of what the actual radio waves sound like, should I be able to hear them directly. I understand the math of frequency modulation, and am willing to make ...
0
votes
1answer
64 views

What's the name for the type of x-axis scale used in frequency graphs?

I'm talking about the way the spacing between frequencies typically shrinks as the x-axis increases on frequency graphs. For example, in the graph below, the leftmost (labelled) x-axis interval ...
1
vote
3answers
1k views

Why can I hear 120 BPM, but not 2 Hz?

What is the difference between BPM (Beats Per Minute, like what a DJ counts to mix) and Hz (Hertz, like what tuning forks are measured in), other than a factor of 60? Why can I hear a 60 BPM bass ...
1
vote
2answers
76 views

What property of sound disturbs us?

I am not sure if here is the right place to ask my question. But I will ask. I want to build some kind of sound detector circuit to prevent sleeping baby from disturbances. But, it should detect ...
2
votes
2answers
63 views

How can I avoid the pop at the end of a file containing a pure frequency?

For a personal project, I need to generate a track that contains a single, pure frequency. My method for this involves generating a single tone using Audacity, and exporting the file. The wave ...
0
votes
1answer
58 views

Automatic EQ creation to get similar frequence response from two sources?

Is there some kind of plugin / tool (preferably ladspa, lv2 or at least open source) to compare two recordings of an identical source, done with two different mics & recorders and create an ...
0
votes
1answer
1k views

Frequency distribution graphs in music

I'm quite a newb when it comes to anything audio-related but am playing with programming a spectrum-visualiser. I chunked the signal into 50 bars, each representing another frequency-band. One thing ...
2
votes
3answers
994 views

Need help recording ultrasonic frequencies with microphone

I am working on a project; detecting the sounds made by pests in stored grain while eating. I know that the ultrasonic disturbances occur when the pests tear the materials during feeding. I need a ...
1
vote
2answers
574 views

Programming a Vectorscope

I'm currently attempting to create a vectorscope that analyzes realtime audio in Javascript using the Web Audio API. During every cycle, the API allows access to the current frequency data and time ...
1
vote
2answers
475 views

Bubbly/Wet Sounds with FM synthesis

Here's an example: (wet/bubbly sounds all throughout, particularly in first 10 seconds) I'm wondering if anybody knows any tricks on producing these kinds of sounds, ...
0
votes
2answers
192 views

What frequencies does the master volume increase?

If standard eq knobs on a stereo boost or cut the amplitude of specific frequencies does the volume knob adjust the amplitude of all possible frequencies? Is there a range of frequencies different ...
1
vote
1answer
114 views

How to calculate our hearing frequency

If we have an object which produces sound with approx. 120 kHz (i.e. bat). And let's say that we record this sound with sample rate of 44,1 kHz (assuming that we do not know about Nyquist theorem). ...
1
vote
3answers
260 views

From simple to advanced mix techniques

In a few words, I know how to mix a fairly simple track (drums, bass, guitar, vocals...). This means that I know how to blend things together because each "instrument" is quite easy to isolate in ...
3
votes
2answers
113 views

Scales vs. Harmonic Notes

If an ambient sound is to be generated with specific frequencies, would it, in general, sound better if those frequencies are notes selected from a specific scale, or frequencies that are all harmonic ...
1
vote
1answer
3k views

How to shift frequency of whole audio file?

How can I shift the frequency of a whole audio file. So as if there was a sound at 500 Hz and I wanted to shift the audio by 50 Hz, that sound would then be at 550 Hz, and a sound at 1000 Hz would be ...
0
votes
2answers
210 views

Feedback loop frequency

Is their an average frequency range of a feedback loop. One created by a speaker and a mic to be slightly more specific.
0
votes
1answer
80 views

standing waves in strings

this is for my acoustics and sound lab and I am lost. please help! The length of the smallest string on a piano is about .15 m long and has a frequency of 4186 Hz. The lowest note on a piano has a ...
1
vote
2answers
176 views

Maximum frequency of monaural beat frequency?

If I am attempting to make a monaural beat from two frequencies by playing two frequencies with equal amplitudes simultaneously, what is the maximum difference I can have between those two frequencies ...
1
vote
1answer
1k views

How to do frequency or spectral subtraction of two audio tracks?

I want to know how it's possible to substract one audio track from another. Meaning that you cut out the frequency spectrum of a audio file from another. I know how the phase inversion trick used to ...
2
votes
2answers
798 views

Recipe for producing a sub bass that is both loud and rattles shelves?

The best sound I can come up with is not a sine wave, but a triangle wave. The triangle wave creates a very nice upper and lower shelf frequency that you can both hear and feel. The bad thing with ...