ECE5527 - Final Presentation

ECE5527 - Final Presentation - Implemented on Texas...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Implemented on Texas Instruments OMAP-L137 Jacob Zurasky 12/12/11 ASR Front End Processing Project Goals Create a front-end for embedded ASR Extract feature vectors from speech data Allow for many different specifications Extract features real-time, while allowing enough CPU time for analysis Hardware Platform Texas Instruments OMAP L137 DSP, dual core TMS320C6747 ARM9 AIC3106 Audio Codec 64MB SDRAM Signal Flow Block Diagram Framing Pre- Emphas is FFT Mel Filter Log DCT Deltas Window Aud io 13 - MFCCs 13 - Deltas 13 - Delta Deltas Data Streams Streams are a way to transfer blocks of data efficiently Uses enhanced direct memory access (EDMA) Block of data can be accessed by SIO_reclaim() Block of data can be sent by SIO_issue() Audio Codec DSP Input Stream Output Stream Stream Example After SIO_reclaim, pIn points to input data and pOut points to output data After SIO_issue, those buffers are reused by the audio codec Pre-Emphasis...
View Full Document

This note was uploaded on 02/11/2012 for the course ECE 5527 taught by Professor Staff during the Fall '11 term at FIT.

Page1 / 17

ECE5527 - Final Presentation - Implemented on Texas...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online