INTERSPEECH 2007

Title: Reconstructing Audio Signals from Modified Non-Coherent Hilbert Envelopes

Authors: Joachim Thiemann, Peter Kabal

Multimedia files in this directory

Contents

Title:  Reconstructing Audio Signals from Modified Non-Coherent Hilbert Envelopes
Authors: Joachim Thiemann, Peter Kabal

FSPEECH.WAV     Original unmodified speech sample

FSPEECH0.WAV    Original speech file bandpass filtered to match the 
                system transfer function

FSPEECH1.WAV    Speech signal reconstructed from envelopes:
                first estimate using monochromatic carriers

FSPEECH2.WAV    Speech signal reconstructed from envelopes:
                final estimate after 200 iterations

FSPEECH3.WAV    Speech signal reconstructed from modified envelopes:
                envelopes for channels above 1500Hz sampled at 1.2
                times their CBW.

FSPEECH4.WAV    Speech signal reconstructed from modified envelopes:
                envelopes for channels above 1500Hz sampled at 1.2
                times their CBW, below 1500Hz sampled at 250Hz.

ORGAN0.WAV      Original music sample, bandpass filtered.

ORGAN1.WAV      Music sample reconstructed from envelopes:
                estimate after 200 iterations

ORGAN2.WAV      Music sample reconstructed from envelopes:
                estimate after 1000 iterations

ORGAN3.WAV      Music sample reconstructed from envelopes:
                estimate after 200 iterations using a higher density
                of envelope channels (4 per CB, 123 total)