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H I G H. AL T I T UDE. J E T S. W H IZ. P A ST. S CREAM I N G. ORIGINAL. 3. 2. 1. 0. SIGNIFICANT SILENT INTERVALS. FREQUENCY (KHz). VOICE-SWITCHED. 3. 2. 1. 0. 4. 4. 0. 0.5. 1.0. 1.5. 2.0. TIME (SECONDS). INTERVAL MODIFICATIONS X 0.5. 4. 3. 2. 1. 0. - PowerPoint PPT Presentation

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Contact Center Campaigns

X 1.0X 1.5X 2.00143202.000.5014320014320014320FREQUENCY (KHz)INTERVAL MODIFICATIONS X 0.51.01.5TIME (SECONDS)4

40 KBPS30 KBPS1320413204FREQUENCY (KHz)2.000.51.01.5TIME (SECONDS)5

1320420 KBPSVARIABLE QUALITY20 to 40 KBPS1324FREQUENCY (KHz)2.000.51.01.5TIME (SECONDS)06

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10Audio Recording Silence Editor (Telephone Bandwidth)* Coding Comparisons Original 64K PCM 32K ADPCM 24K ADPCM* Silence Modification (32K) 100% 50% 25% 0% 200% 400%* Paragraph Passage (0%)

11Audio Recording - Variable Coding Quality in Packet Transmission of SpeechOriginal analog input 40 K bits/sec30 K bits/sec20 K bits/secVariable coding rates40-30-20-30-40 K bits/sec

12Audio Recording Phase Vocoder(Analyzed/Synthesized--One Half Telephone Bandwidth)* Analyzed/Synthesized Sentences Spoken Twice Man Man Woman* Synthesized Speeded (Man) 1:1 1:1.5 1:2 1:3 * Synthesized Slowed (Woman) 1:1 2:1* Self-Multiplexing Bandwidth Manipulation (Time Scale Intact) Synthesized to Original Bandwidth Synthesized to One-Half Bandwidth One-Half Bandwidth Re-Analyzed and Restored

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