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DRD-7Fs is based on ZARAM¡¯s high performance 24-bit DSP core and DEDEKIND R&D¡¯s patent sound effect algorithm.
The chip enhances sound quality regardless of speaker size, sound volume and dynamic range.
It provides live sound and is the best solution to solve some conflicting problems [better sound vs. broken sound], [better sound vs. cost], [better sound vs. small sound], [better sound vs. small Speaker] and [deficient information vs. resources-exploitability] in sound design working.
DRD-7Fs fulfills sound design work by using several digital filters, which all processes are operated on PC-tool provided by DEDEKIND R&D.
It can help developers to shorten development time for sound design.
This solution is very useful for TV, mini-component, PC, CD radio cassette speaker system and other audio products including mobile phone.
+ Lively Sound by Liveliness Enhancement Filter
- Controls distance feeling
- Compensates distance effect of sound propagation
+ No-broken sound by Double Automatic Enhancement Gain Controllers
+ Rich music and clear voice in small sound level by Automatic Liveliness Controller
+ Optimizing to small (size & stroke) speaker by Automatic Power Band Controller
+ Compensation to synthesized too strong base by Automatic Base Compensator
+ Clear Speech from rich music sound by Automatic speech signal Detection
+ Independently designable in (liveliness for music & clearness for Speech)
+ Compensation to local sound characteristics by (speaker & cabinet) by Fix Equalizers
+ Compensation music sound power band by Fixed Equalizers
+ Compensation speech sound power band by Fixed Equalizers
+ lSDC(Small-speaker Dynamic range Compensator)
+ lSMD(Speech/Music Detection)
+ lBTC(Base Tone Compensation)
+ lLEF(Liveliness Enhancement Filter)
+ lFEQ(Fixed Equalizer)
+ lACF(Automatic Coefficient Fixing)
+ 24-bit DSP core : max 70 MHz operation
+ Operating voltage : 3.0 ~ 3.6 volt
+ Power consumption : 1.2 mA/MHz
+ Analog PLL (3~50 MHz input frequency/20~150 MHz output frequency)
+ 1536-word internal program ROM
+ 256-word internal program RAM
+ 1280-word internal data RAM (512-word overlay RAM)
+ Sampling frequency : 32, 44.1, 48KHz
