Parameter updating

• LP paramters/gain/voicing/pitch determined for equally spaced frames
• Not feasible to do interpolate on every sample
• Infrequent interpolation introduces discontinuities
• Discontinuities less noticable on pithc period boundaries
• Practical solution:
  • For unvoiced speech use original analysis timings
  • For voiced speech update on pitch pulse injection
  • Use linear interpolation to get LP paramters