PAST PROJECTS
Some of CDA’s design engineers have strong
backgrounds in audio and acoustics. The company’s president has previous
design experience for professional audio companies such as Bose. The
company has also designed several successful sound&vibration related test
systems for the automotive industry. Included below are a few of CDA’s
recent audio related success stories.
Portable battery powered DSP device designed for hearing aid
manufacturer, allowing the simulation of advanced noise reduction and
filtering strategies. The device’s software is uploadable via infrared
communication link from a personal computer. Runs off 9 volt
battery.
Developed 100W Class-D (switchmode) audio power amplifier for 2nd
tier automotive manufacturer. Bandwidth of 20 Hz to 20 KHz with less than
0.1% THD at full output power.
Developed automotive headphone amplifier for commercial
automotive manufacturer. Device de-multiplexed four 16-bit stereo (I2S)
audio channels and routed to individual D/A and amplifiers
Developed drivers for a Motorola DSP56301 DSP processor to
perform bus mastering of the host PC’s PCI bus to allow faster data
acquisition for a commercial hearing test product
Developed wide variety of signal processing for use in Audiology
and physiotherapy research at various universities. Various modules
included programmable gain controls (100dB attenuation in 0.1 dB steps,
white noise generators, mixers, adders, programmable filters, ultra-quiet
power amplifiers.
