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Tata Elxsi's expertise in audio covers a wide range of
encoder, decoder, and codec implementations across the
entire audible spectrum. This includes:
Audio codecs like MP3, MPEG2 AAC, MPEG4 AAC, Dolby AC3,
WMA etc
A number of features like speed control, pitch change,
error resilience and scalability in terms of bitrate,
bandwidth, error robustness, complexity, etc have been
implemented to facilitate a wide variety of applications
- from intelligible speech to high quality multi-channel
audio. These enhancements are realized within a single
coder or alternatively by combining different techniques
(Parametric, CELP and T/F etc).
Our technological depth in MPEG audio is reflected in
development of original algorithms for highest quality
audio processing in real-time. These algorithms include:
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Temporal Noise Shaping |
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Psycho-acoustic adjustments |
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Transient detection of attack for
adaptive window selection |
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Clustering scale factor band for
audio |
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Optimized rate control and distortion
control loops, etc |
Tata Elxsi strengths in targeting audio algorithms
to DSPs has helped build rich speech/audio processing
capabilities in consumer devices and telecom equipment.
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