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DRD

DRD. Digital Audio Processor. Technology.

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DRD

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  1. DRD Digital Audio Processor

  2. Technology With precise echo phase and technique to reduce the discordance of speaker, DRD can improve audio product’s dynamic range substantially. Moreover, it makes speaker to create pure、natural、powerful and lively acoustics. You can experience True 3D sound easily. Makes it possible to reproduce super low bass lively. DRD is good at broken sound control, especially for strong bass on small speaker. Therefore, An amazing strong basscan be gotten via 2-CH speaker handily. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  3. Key Feature • DRDcan controlbroken soundcoming from strong base sound of small speaker. • DRDmakes it possible toreproducelively sound without distorting middle tone. • DRDfunction canautomatically detectsthe input signal -- music or speech ? • DRDkeep richness and clearness insmall volume. • DRDcan controlmuch enhanced soundwithout distorting original sound quality. • DRDcan compensatesignal characteristics ofspeaker and cabinetat the same time. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  4. Key Function PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  5. LEF – Liveliness Enhancement Filter • LEF make focus of audio sound very clear. • LEF make dynamic range of speaker as wide as possible. • LEF make super low base and upper high treble very clear. Vocal becomes very lively . • LEF make harmony in chorus becomes beautiful. • LEF makes it possible to reproduce lively sound without distorting middle tone which is important for music. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  6. Comparison LEF vs. Other Base Enhancement Comparison LEF vs. Other Treble Enhancement LEF Output Other Filter Original Input LEF Output Other Filter Original Input • Most of base or treble enhancement will makes phase be shifted. But LEF dynamic range enhancement will keep phase at the same position. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  7. A_LEF – Automatic Liveliness Enhancement Filter • A_LEF keep richness and clearness in small volume. • A_LEF let you enjoy rich sound even in small volume and will not disturb other people. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  8. SDC –Small speaker Dynamic range Compensation • Most of small speaker will produce broken sound in strong base sound. • SDC can control broken sound and compensate dynamic range of small speaker. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  9. BTC – Base Tone Compensation • BTConly compensates to strong crazy base sound. • Usually strongly enhanced low tone is exactly the problem for power amplifier system of audio set. • BTC can control much enhanced sound without distorting original sound quality. Always keeps audio set in best condition. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  10. SMD – Speech Music Detection filter • SMD function can automatically detects the input signal - music or speech ? • SMD can make Speech clearer , make music richer. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  11. FEQ – Fixed Equalizer • Usually the un-perfected signal of audio set caused by the problem of mechanical design is hardly be compensated. • FEQ can compensatesignal characteristics of speaker and cabinet at the same time. • FEQ can fine compensate EQ (f0, Q, Gain) by using PC tool on Real Time. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  12. ACF – Auto Coefficient Fixed • ACF will automatically control best coefficient by each volume level. And the best sound is kept in average use. • ACF will optimizing frequency-gain characteristic correspond to sound level. PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  13. DRD_7Fs :Specifications • Package-28Pin MLF (6x6mm) • IIS data bus , IIC control bus • Power supply voltage : 3.3V • 24bit fixed point , 70 MIPS compact DSP core • Supply current : 1.2mA / 1Mips ( 40Mips / 48mA ) • Sampling frequency : 32kHz/44.1kHz/48kHz • Temperature range : -40ºC ~ +85ºC PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

  14. In generally • DRD-7Fs can be strongly help you to get solution for conflict problem in : • Speech sound/ Music sound    • Livery sound/ Broken sound in large volume    • Poor sound/ Small volume    • Poor sound / Low cost speaker    PAC ELECTRONICS CO., LTD. Tel:+886-2-29996599 http://www.pactw.com.tw e-mail:joy@pactw.com.tw

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