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  1. Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
  2. Date: Sat, 9 Jan 1993 09:52:23 GMT
  3. From: minakami@xenon.stanford.edu (Michael K. Minakami)
  4. Newsgroups: comp.dcom.telecom
  5. Subject: Compressed Speech Warbles ... Need Help!
  6. Message-ID: <telecom13.16.4@eecs.nwu.edu>
  7. Organization: Computer Science Department, Stanford University.
  8. Sender: Telecom@eecs.nwu.edu
  9. Approved: Telecom@eecs.nwu.edu
  10. X-Submissions-To: telecom@eecs.nwu.edu
  11. X-Administrivia-To: telecom-request@eecs.nwu.edu
  12. X-Telecom-Digest: Volume 13, Issue 16, Message 4 of 12
  13. Lines: 15
  14.  
  15. Hello all, I'm using a GSM compressor to try to compress some voice
  16. data digitally recorded at a studio. The uncompressed voice sounds
  17. quite good, however once it's compressed there is an annoying warble
  18. in the voice.
  19.  
  20. Does anyone have any ideas how I could "fix" this? Any pre-filters? I
  21. suspect this is the same warbling experienced by some RELP coders, as
  22. GSM employs LPC followed by long-term-prediction and residue encoding.
  23.  
  24. Any leads would be greatly appreciated!
  25.  
  26.  
  27. Michael Minakami      Computer Science/Psychology    Stanford University
  28.  
  29.