The speech tag has no wiki summary.
1
vote
0answers
38 views
Summer Projects - Suggestions
I'm looking for some suggestions and wondered if anyone had any ideas.
I have just completed a project in Speech Recognition using MFCC, Dynamic Time Warping and Hidden Markov Models etc.. (Some of ...
0
votes
0answers
12 views
Lookup word in dictionary by voice [migrated]
I have 1000 words in 3 different dialects for the Gaelic language. I have each word in the form of three mp3 recordings. I wish to have functionality in my application, be it a website or a mobile ...
0
votes
1answer
45 views
Format location from LPC magnitude
I am confusing when I find the lpc roots magnitude, f1=0.9313, f2=0.9308, f3=0.91 and f4=0.95 but when I look at LPC envelope the f1 is higher than f4 in term of magnitude in dB.
Could anybody explain ...
0
votes
1answer
53 views
what is probability density function (PDF) of periodic signal
anybody knows what is the best pdf for periodic signal ?
I have signal with 480 samples (16000*0.03=480) but I could not find the exact pdf for that. sometimes it appear like 2 mixed Gaussian.
0
votes
1answer
46 views
Detect when someone has stopped talking
What's an extremely efficient way of detecting when a user has stopped talking into a microphone? When I use systems like Siri it can detect when I've stopped talking almost immediately, even when ...
1
vote
1answer
31 views
Establishing Phrase Frequency in Audio Files
Is there any Application, Programming Library or Theory that could be used to identify human language phrases in a set of audio files, so as to calculate the frequency of occurrence of each such ...
3
votes
2answers
78 views
Why does the excitation signal appear, separated, at high quefrencies in the cepstrum?
So, I've just begun a speech and language processing course and have found the explanation of the process of getting the cepstrum of a signal and its properties a little confusing. The following is a ...
0
votes
1answer
46 views
How to compare two speech recognition softwares?
I am working on building speech recognition software for my company.
In the meantime however, we will purchase some off-the-shelf commercial speech recognizers until the in-house one is ready. My ...
5
votes
2answers
140 views
What do colored noises look like in the time domain?
I understand that the time domain representation of white noise looks like impulses. How do colored noises like brown, pink etc. look like when we perform an inverse Fourier Transform on them ? What ...
1
vote
2answers
110 views
Emotional Tone detection using audio on mobile phones
Which audio features should be used to detect tone from audio? Are there any open source frameworks or implementations which can be ported to mobile phones to process audio?
Alternatively, would it be ...
3
votes
0answers
52 views
Detect human speech in realtime audio on mobile phones
I am looking to develop an Android app. As part of the functionality the app would require to randomly sample 3-5 seconds of audio and classify it as containing human speech or not. I understand that ...
3
votes
1answer
114 views
Identifying the age of a speaker using speech recognition
I am just wondering if it's possible to gather the age group of someone speaking in a sample?
For example, could I tell whether the sample is a child, teenage, adult, etc?
4
votes
1answer
162 views
how does this equation correspond to smoothing?
Please help me understand smoothing of data. This is a follow up to my previous question posted here. Especially the top answer by Junuxx where he says a way of smoothing a function $f(x)$ is:
$$
...
2
votes
1answer
148 views
Speech Recognition Project - HMM
I am looking for advice on a project I am thinking about completing (for experience etc..)
My project is triggering a set of traffic lights (simulation) using Speech recognition. In theory, I want to ...
1
vote
1answer
147 views
Calculating the total energy of a signal
I have a vector of signals and need to calculate the total energy. I have read somewhere that you can do this by summing up the entire vector and then finding the absolute value of the result. Is this ...
1
vote
1answer
69 views
HMM's - Possibility?
I have a basic understanding of HMM's and as a final year project at school wanted to expand my knowledge further.
My basic idea was to create an algorithm that determines if someone is saying ...
0
votes
1answer
135 views
Speech Analysis - Zero-Crossing
Basically, (I know I've asked a simular question, but I have been away and really thought about it this time)!
Let me try and explain this in the best way possible:
Basically, I'm attempting to ...
2
votes
3answers
611 views
Speech Recognition - Project Idea
Wondering if someone could offer me any advice or help. Sorry if this question is too broad or anything.
I'm wanting to complete an algorithm in basic Speech analysis. The algorithm will detect ...
2
votes
1answer
274 views
Speech Compression - In LPC how does the linear predictive filter work on a general level?
Hi I'm taking a multimedia systems course and I'm preparing for my exam on tuesday. I'm trying to get my head around LPC compression on a general level, but I'm having trouble with what is going on ...
5
votes
2answers
1k views
Libraries for Voice Activity Detection (not Speech Recognition)
As follow up to my previous question I was wondering if there are any speech detection libraries in existence. By speech detection I mean passing in an audio buffer and getting back an index of where ...
0
votes
1answer
69 views
How best to digitize a noisy phone recording for filtering?
How do I digitize an analog telephone recording and filter it with a Chebyshev filter?
3
votes
1answer
121 views
Real-time single speaker recognition
I'm developing an application for PC that records microphone data in real-time, and plays it back after applying some effects.
I'd like to apply these effects only when a single known speaker is ...
3
votes
3answers
674 views
How to simulation different kinds of Noises in speech signal?
What are the different kinds of noise in speech signal? How can I simulate the same in Matlab for adding to a clean speech signal?
7
votes
2answers
107 views
What input to use for an AR model of a vowel sound?
I've recorded a 2-sec pronunciation of a vowel sound. The first 0.12 or so seconds of the signal are shown below.
Now, I've constructed an auto-regressive (AR) 8th-order model to compress this ...
