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CouthIT’s Embedded Software Group delivers end-to-end multimedia engineering services across speech, audio, video, and digital signal processing technologies. From algorithm research, development, porting, and optimization to system integration, validation, performance tuning, and lifecycle maintenance, CouthIT helps customers build high-performance solutions. Our expertise spans advanced DSP algorithms, multi-channel and immersive audio, real-time video and multimedia communication over IP, fax-over-IP, and standards-based implementations. By working closely with customers to address complex technical challenges, optimize existing implementations, and accelerate the development of new products and features, CouthIT helps reduce development effort and technical risk while achieving the performance, efficiency, quality, and time-to-market objectives of their products.
- Porting, optimization, and acceleration of audio and video signal processing algorithms, including assembly-level optimization, algorithm redesign, multicore parallelization, and floating-point to fixed-point conversion.
- Research, design, and development of advanced digital signal processing (DSP) algorithms for multimedia applications.
- Development of multi-channel audio solutions, including surround sound, immersive audio, spatial audio, and 3D audio technologies.
- Integration, validation, testing, optimization, and lifecycle maintenance of multimedia signal processing software.
- Development and integration of fax-over-IP solutions using open-source fax engines such as SpanDSP.
- Design and implementation of embedded video conferencing and real-time multimedia communication solutions over IP networks.
- Voice, audio, and video quality assessment, performance evaluation, and optimization for multimedia systems.
- Implementation and optimization of multimedia solutions compliant with industry standards and specifications, including 3GPP, ITU-T, and IEEE.
A Session Border Controller (SBC) is a critical component of modern VoIP infrastructure, securing SIP signaling and managing real-time media between enterprise networks, service providers, and interconnected networks. Codecs are central to SBC media processing, enabling encoding, decoding, and transcoding across standards such as G.711, G.729, EVS, Opus, AMR, and H.264. As high-density SBCs increasingly run on x86-64 server platforms, optimized codec implementations are essential for maximizing call capacity, minimizing CPU utilization and latency, and improving cost efficiency. CouthIT has delivered customized VoIP and media-processing solutions leveraging optimized codec implementations for x86-64, helping customers increase call density, scale transcoding workloads, and reduce infrastructure costs. With deep expertise in VoIP protocols, media frameworks, DSP algorithms, and high-performance codec optimization, CouthIT is a leading provider of VoIP stack technology for transcoding applications, powering the encoding, decoding, and transcoding millions of calls every day.
Center for Development of Telematics (CDOT) is developing the next generation secure video phone based on the TI AM572x SOC. This SOC comes with a High-Definition Image and Video Accelerator (IVA-HD) for encoding/decoding and a Video Processing Engine (VPE) for scaling, color space conversion, and de-interlacing. CouthIT’s contribution included enhancing their SIP client to add support for hardware accelerator based video coding, scaling, and color space conversion to achieve real-time performance at HD resolutions. Further, CouthIT also analyzed the end-to-end flow of video and voice data and optimized the overall system performance for multi-party conference calls.
