Sign in

Not a member? | Forgot your Password?

Search matlab

Search tips

Find us on Facebook!





Subscribe to matlab

Search tips

Free PDF Downloads

A Quadrature Signals Tutorial: Complex, But Not Complicated

Understanding the 'Phasing Method' of Single Sideband Demodulation

Complex Digital Signal Processing in Telecommunications

Introduction to Sound Processing

C++ Tutorial

Introduction of C Programming for DSP Applications

Fixed-Point Arithmetic: An Introduction

Cascaded Integrator-Comb (CIC) Filter Introduction

Discussion Groups

FFT Spectral Analysis Software

See Also

Embedded SystemsFPGA

Discussion Groups | Matlab DSP | How to record sound in Matlab?

Technical discussion about Matlab and issues related to Digital Signal Processing.

  

Post a new Thread



Is this thread worth a thumbs up?

0

How to record sound in Matlab? - senthilpr_in - Jan 13 17:00:00 2002

Hi everybody,
I'm working on a project on speech recog. How do you
record sound in matlab at a sampling freq of 8192Hz. Currently i'm
using windows sound recorder to record the sound at a sampling freq
of 22050 Hz which is too much for me. format conversions leads to
inaccurate reproduction of sound.

Thanx

senthil







Re: How to record sound in Matlab? - Jeff Brower - Jan 14 19:52:00 2002

Senthil-

> I'm working on a project on speech recog. How do you
>record sound in matlab at a sampling freq of 8192Hz. Currently i'm
>using windows sound recorder to record the sound at a sampling freq
>of 22050 Hz which is too much for me. format conversions leads to
>inaccurate reproduction of sound.

You need a sound card that actually samples at 8.192 kHz. We use the old Tahiti

boards which have amazing analog performance (> 92 dB SNR), and we replace the
oscillator on the card so it can sample 8.192, 16.384, etc. instead of 11.025,
22.5, etc

Jeff Brower
DSP sw/hw engineer
Signalogic