Questions tagged [sound-recognition]

Used for recognition of any sounds other than music or speech. Usages might include bird recognition, dog bark detection, baby cry detection, etc.

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7 views

Identify consonant, phoneme from a given word

I'm new to speech recognition so apologies if the question sounds mediocre, I've started to read articles,blogs and research on sound recognition. They include topics like FFT, Power spectrum, filters,...
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2answers
55 views

Working with a sound's magnitude instead of amplitude

I'm working on a project, where we're recording sound with a piezo-disc which looks a little something like this: Now, unless we're doing something horribly horribly wrong, I've discovered that we're ...
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35 views

Normalize two or more sound signals in order to let them with the same duration time and amplitude

I am very new in signal processing area and I am trying to solve the task in order to make an experiment with audio files from different languages, so, I am trying to let some ogg audio files with the ...
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2answers
35 views

Understanding MFCCs

I am doing research about emotion recognition from speech, by applying machine learning. Most papers are recommending using MFCC features. Therefore, I am currently trying to understand the underlying ...
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1answer
27 views

what are the vector formats similar to hash codes to store user's voice for future voice verification?

I have wav file of ~2-10sec of user's voice, taken from a conversation. Maybe it's SIMILAR TO a hash code. the general voice verification should look like: wav file -> vector new wav file ->vector ...
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52 views

Audio Activity Detection and Classification

I am starting a new project. Actually, my real intention is to learn speech recognition but for warming up I want to improve in audio signal processing. In my project, I aim to record sounds except ...
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45 views

Find repeating sequences in audio file

I have a long audio file (12+ hours). I know that there are some unknown small (2 minutes each or thereabout, it varies) repeating (not bit by bit: it is recorded with a mic) chunks in it, repeating ...
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2answers
40 views

Distinguishing Spoken Speech from Played-back Recording of Speech

Do any general-purpose techniques exist to distinguish live spoken speech from played-back speech samples? For example, if I were to deploy a speaker verification system to authenticate users by voice,...
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1answer
50 views

I want to actuate a motor based on a wav file, but it has too many samples per second [closed]

I am trying to actuate a simple DC motor based on a wav file. At the moment I am using the "cat vs dogs sounds" from Kaggle. One of the wav files in this DB looks like this: These audio files are ...
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54 views

MFCC parameters for gunshot recognition

I'm writing a gunshot detector software. I'm using this article as reference:https://arxiv.org/ftp/arxiv/papers/1706/1706.08759.pdf. For now, my software is able to recognize an impulsive sound. Now, ...
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1answer
108 views

Silence removal from the audio

Suppose i've a mp3 file. I performed FFT of that mp3 file. Then is it good to state the following: 1. Silence occurs by that particular DFT point whose magnitude is lesser than some threshold. 2. ...
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158 views

Formant Analysis Frequency - What makes a peak value?

from spectrograms, how can you tell which peak is really a formant. Like why is the pink arrow the first formant. And in the spectrogram below, which has fewer samples, what makes a value the peak ...
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4answers
117 views

Baby Cry recognition robust against the distance [closed]

I am building a baby cry detection system using deep learning algorithm, Raspberry Pi and a microphone as the sound sensor. When the baby starts crying then the system should detect the cry. It is ...
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1answer
50 views

Is there a public repository of labeled sound files coming from an industrial area?

I know about the UCI Machine Learning Repository for ML datasets; Where could one find sound files e.g. in wav format, which are partially or completely labelled?
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185 views

issue with the MFCC and GMM for audio recognition

i am working on a project related to audio events recognition in real time like a door bell, baby crying, footstep, I have 9 categories of sound events so the first step i did was getting many wav ...
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267 views

issue in the mfcc function in java and matlab,not the same

I am working on a project for recognizing and identifying the sounds in real time(like baby crying, birds, door knocking...)by java, so I made a model by using audio files for 9 categories of sound by ...
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1answer
96 views

How to find when a part of audio starts and ends in another audio?

I have two audio files in which a sentence is read (like singing a song) by two different people. So they have different lengths. They are just vocal, no instrument in it. A1: Audio File 1 A2: Audio ...
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2answers
5k views

Detecting direction of sound using several microphones

First of all, I've seen a similar thread, however it's a bit different to what I'm trying to achieve. I am constructing a robot which will follow the person who calls it. My idea is to use 3 or 4 ...
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2answers
515 views

When does the laugh track kick in?

One of my weekend projects has brought me into the deep waters of signal processing. As with all my code projects that require some heavy-duty math, I'm more than happy to tinker my way to a solution ...
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2answers
2k views

Baby Cry Sound detection

I wanted to write a code to detect baby cry sound. I am using Windows as platform. Presently, I am able to get audio samples and its frequency plot(using FFT) but not sure how to proceed forward. I ...
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5answers
8k views

Detect dog barks

I’d like to use my Raspberry Pi to record when and how often my dog barks. But for privacy reasons, I don’t simply want to record the loudness in the room, so I have to automatically detect barks. ...
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4answers
30k views

Feature extraction for sound classification

I'm trying to extract features from a sound file and classify the sound as belonging to a particular category (eg : dog bark, vehicle engine e.t.c). I'd like some clarity on the following things : 1) ...