Contents

• List of Tables
• Introduction to Speex
  • Getting help
  • About this document
  
  
• Codec description
  • Concepts
  • Codec
  • Preprocessor
  • Adaptive Jitter Buffer
  • Acoustic Echo Canceller
  
  
• Compiling
  • Platforms
  
  
• Command-line encoder/decoder
  • speexenc
  • speexdec
  
  
• Programming with Speex (the libspeex API)
  • Encoding
  • Decoding
  • Preprocessor
  • Echo Cancellation
    • Troubleshooting
  • Jitter Buffer
    • Generic Jitter Buffer
    • Speex Jitter Buffer
  • Resampler
  • Codec Options (speex_*_ctl)
  • Mode queries
  • Preprocessor options
  • Packing and in-band signalling
  
  
• Formats and standards
  • RTP Payload Format
  • MIME Type
  • Ogg file format
  
  
• Introduction to CELP Coding
  • Source-Filter Model of Speech Prediction
  • Linear Prediction (LPC)
  • Pitch Prediction
  • Innovation Codebook
  • Noise Weighting
  • Analysis-by-Synthesis
  
  
• Speex narrowband mode
  • Whole-Frame Analysis
  • Sub-Frame Analysis-by-Synthesis
  • Bit allocation
  • Perceptual enhancement
  
  
• Speex wideband mode (sub-band CELP)
  • Linear Prediction
  • Pitch Prediction
  • Excitation Quantization
  • Bit allocation
  
  
• FAQ
• Sample code
  • sampleenc.c
  • sampledec.c
  
  
• IETF RTP Profile
• Speex License
• GNU Free Documentation License
• Index