MELPe by VOCAL Technologies

Audio and Voice Solutions

Product Description

 

Mixed-Excitation Linear Predictive enhanced (MELPe) codec provides real-time multi-channel voice compression for mobile and embedded VoIP and other voice applications.  The algorithm is very efficient and appropriate for use in ARM based systems such as mobile phones and radios with limited power.

MELPe provides 600, 1200, and 2400 bps data rates with compressed bit-stream transcoding between the different rates. MELPe is robust in difficult background noise environments such as those frequently encountered in commercial and military communication systems.

Configurations

• Available as standalone module or with VoIP software stack
• Available with Android and iOS VoIP Libraries
• Available with G.168 Echo Canceller and Tone Detection/Regeneration modules
• MF tone detectors, general purpose programmable tone detectors/generators available
• Simultaneous DTMF detector operation available – (less than 10 talkoff hits on Bellcore test tape set)
• North American/International Telephony (including caller ID) support available
• Direct interface to 8.0 kHz PCM data stream (A-law or μ-law)
• DAA interface using linear codec at 8.0 kHz sample rate

MELPe

Market Segment(s)

• Embedded
• Mobile

Target Platform(s)

• Android
• Linux
• Other OS
• QNX
• Symbian
• VxWorks
• Windows Embedded CE
• Windows Mobile

ARM Processor(s)

• ARM920T
• ARM946E-S
• Cortex-A8
• Cortex-M1
• ARMv7
• StrongARM

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