Free Download BIGSPEED Voice Compression SDK 1.0 - COM enabled VoIP sound engine

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BIGSPEED Voice Compression SDK is a simpleton, low-complexity, low-cost phonation engine for quick growing of VoIP applications. It incorporates audio recording / playback and phonation densification / decompresion in a single COM automation object, along with some advanced phonation processing features.

The used audio format is wideband, 16kHz, 16Kbps, PCM. The densification ratio is adjustable and john vary from 4: 1 to 50: 1.

A set of bandwidth john be addionally saved thanks to the quiet densification. A phonation activity detector (VAD) with an adjustable threshold grade is used to identify between regions with normal speech activity and those with quiet or ground resound.

An optional echo suppression john be employed thanks to the robust reduplicate talk detector. When a reduplicate talk office is detected, the output signaling is faded (half-duplex).

An automatic gain master (AGC) arrangement is implement with a dynamic range 10: 1. A resound reduction is performed on the microphone signaling to reduction the whitened resound.

BIGSPEED Voice Compression SDK utilizes an elegant event-driven paradigm for gentle integration into Windows applications. A special attention is paid to supply responsive user interface while maintaining modest CPU custom. Carefully designed place of properties, methods, and events offers great flexibility to grow innovative communication software. Sample applications are included in Visual Basic .NET, and Delphi 7.