Audio Processing

D3 Engineering has completed several projects that involve audio processing. Your next product can benefit from our experience in compression, filtering, synthesis, and speech recognition. We have worked on G.7xx vocoders for the telcom industry.

Audio Processing Hardware

If you are starting an audio processing project you will want to look at our AD77 Kit. It contains a daughtercard that will plug into most Texas Instruments DSP evaluation kits. It utilizes an inexpensive Stereo Codec from Texas Instruments. This converter is capable of 24-bit, 96kHz Stereo operation. Priced at under $3.00, it is perfect for digital audio applications (MP3, Digital Radio, etc). The kit comes complete with schematics and software that is designed to help you get your digital audio project to market faster.

Audio Processing Algorithms

D3 has experience with most vocoder and compression standards used today. Some of the audio algorithms D3 has experience with include:

ADPCM
LPC
MELP
CELP
Hidden Markov Model
Speech Watermarking

We also have experience with proaudio, cellular GSM vocoders and MP3. Our mathematic experience and extensive wireless background allows us to create proprietary compression schemes.

Contact D3 Engineering to provide you with the DSP expertise your company needs.