The rate at which a thing occurs or is found.
The rate at which a thing occurs or is found.
Questions tagged [frequency]
2858 questions
6
votes
1 answer
Play Beep Sound in iphone Related to the Frequency & Decibels
I have researched about to play a beep sound in iphone related to the frequency & decibels that i have given.
Links i…
Gabrielle
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5
votes
2 answers
How to get Cell's currently using frequency GSM/CDMA (Android)
Is there any Android class/ api by which i can get current radio frequency of my
cell whether GSM orCDMA.
Any guidelines.
Thanks
ALi
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5
votes
2 answers
Sorting a list by frequency of letter in python (decreasing order)
Like the title says I need to write a function that will sort a list by frequency of letters. Normally I would supply my code with what I have so far but I have no idea where to get started. I'm sure its something simple but I just don't know what…
Neemaximo
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5
votes
4 answers
Python Audio Transfer Through Lasers
I'm currently working on a project that has been relatively easy, up until now. The underlying project is to transmit data/messages over lasers using audio transformation.
In a nutshell the process is currently like this
The user enters a…
sbrichards
- 2,169
- 2
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- 32
5
votes
12 answers
How to find high frequency words in a book in an environment low on memory?
Recently in a technical interview, I was asked to write a program to find the high frequency words(Words which appear maximum number of times) in a text book. The program should be designed in such a way that, it processes the entire text book with…
Snehal
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5
votes
3 answers
Real time detection of peaks of frequency of events
In a web application, I get a trigger every time an event occurs. I want to detect 'violent' frequency peaks, which probably translate into abnormal behaviour.
I can think of two naive ways of achieving that:
Fixed threshold - "If more than 500…
sawidis
- 201
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- 5
5
votes
1 answer
Make the distance between neighbor music notes the same (Theremin like app)
I'm making a Theremin-like app in Unity (C#).
I have horizontal Axis X, on which I can click (with a mouse or with a finger on a smartphone).
This X-axis determines the frequency, which will be played.
The user will specify the frequency range of…
Ruuza
- 185
- 7
5
votes
2 answers
How do i get the audio frequency from my mic using javascript?
I need to create a sort of like guitar tuner.. thats recognize the sound frequencies and determines in witch chord i am actually playing. Its similar to this guitar tuner that i found online:
https://musicjungle.com.br/afinador-online
But i cant…
Marvin Medeiros
- 202
- 4
- 22
5
votes
1 answer
Is there an efficient way to find the most frequent number in a sorted array of ranges in constant space
I have to find the most frequent number (or mode) from a sorted array of ranges. This range consists simply of a start and end number that is inclusive.
As an example arr[0] could contain the numbers {0, 3}, which would then mean the numbers {0, 1,…
user14480191
- 83
- 4
5
votes
1 answer
FSK Modulation and Playing sine Tone in Android
I want to do some FSK Modulation over the audio port. So the problem is that my sinus wave isn't very good. It is disturb by even parts. I used the code original from http://marblemice.blogspot.com/2010/04/generate-and-play-tone-in-android.html with…
Ingo Nieur
- 61
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5
votes
2 answers
How to get the most frequent item (number or string) in an array?
I am trying to get the most frequent item in a javascript array builded by a Dialogflow chatbot with the fullfilment code.
However if I can display the array, it seems the function I tried doesn't work well to find the most frequent item:
const…
Revolucion for Monica
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5
votes
1 answer
What is "Subject to frequency limit" tag in Firebase cloud messaging
What is "Subject to frequency limit" tag in Firebase Cloud Messaging? When I try to schedule the message there is on tag called "Subject to frequency limit", which further has two option
Subject to frequency limit
Custom
Once per user for this…
ASR
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5
votes
3 answers
How to synthesize exact frequencies on flash?
I've researched a bit and I discovered a way to generate sounds dynamically on flash:
import flash.media.Sound;
var mySound:Sound = new Sound();
mySound.addEventListener(SampleDataEvent.SAMPLE_DATA, sineGenerateSound);
mySound.play();
function…
Lucas
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5
votes
3 answers
How to use cepstral?
Recently I asked this question: How to get the fundamental frequency from FFT? (you don't actually need to read it)
My doubt right now it: how to use the cepstral algorithm?
I just don't know how to use it because the only language that I know is…
Lucas Speranza
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5
votes
2 answers
Extracting an amplitude list from *.wav file for use in Python
I'm having a little bit of programing and conversion trouble. I'm designing an AI to recognize notes played by instruments and need to extract the raw sound data from a wave file. My objective is to perform a FFT operation over chunks of time in the…
AlexL
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