OMG...討論快爛掉了吧
http://www.pcdvd.com.tw/showthread.php?t=728515


Conexant 23418 :
"Single-Chip MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder"
http://www.conexant.com/products/entry.jsp?id=150

The CX23418 increases upon the level of integration found in the CX23416 MPEG-2 encoder by adding a worldwide compatible broadcast audio/video decoder that supports NTSC/PAL/SECAM video standards and their associated stereo audio broadcast standards. By integrating the analog decoding functions that are typically spread across three chips into one chip, the CX23418 offers consumer electronics and personal computer companies a path to reduce the cost of designing and manufacturing their next-generation digital video products.

Features

* Supports MPEG-2 (MP@ML, SP@ML) and MPEG-1
* MPEG transport capture from digital TV demodulators
* Dolby Digital (AC-3) 2-channel
* Sampling rates of 32 kHz, 44.1 kHz, and 48 kHz with compressed bit rates up to 384 kb/sec
* 3-D adaptive comb filter with time-based correction
* Supports interlaced YPbPr inputs along with composite video and S-video
* Vertical blanking interval (VBI) data slicer
* Worldwide audio standards: BTSC, EIAJ, A2, NICAM, FM/AM Mono
* Two stereo audio processing blocks featuring three-band equalizer (EQ), volume, soft mute, auto volume control, and soft clipping functions
* AES, triple DES, and CPRM encryption

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Conexany 23417:
"MPEG-2 Audio/Video Encoder"
http://www.conexant.com/products/entry.jsp?id=455

The CX23417 encoder is one of the industry's lowest power MPEG-2 audio/video encoders. The versatile CX23417 actually incorporates the functionality of up to three different chips, allowing Conexant to deliver this device at a price point that will enable consumer electronics and personal computer companies to reduce dramatically the cost of designing and manufacturing their next-generation digital video products. Pre-filtering improvements in the CX23417 include built-in noise filters that dynamically improve images in the pre-processing stage. As a result, end-users obtain the best possible picture, even as the data rate is reduced and the recording time is lengthened. Other video quality improvements include an increased motion search range, the de-coupling of motion estimation from encoding, and an adaptive quantization scheme. To reduce the overall cost of the CX23417 and achieve the highest video quality, Conexant devoted significant engineering resources to determining the optimal balance between hardware and software implementation of these processing improvements.

Features

* High-quality real-time video encoding
* Supports MPEG-2 and MPEG-1
* Sampling rates of 32 kHz, 44.1 kHz, and 48 kHz
* Compressed bit rates up to 448 kbit/sec

康博,Hauppauge,麗臺都有做CX23418 系列的產品.
康博 的CX23418 系列產品: H900, ...
Hauppauge的CX23418 系列產品: WinTV-HVR-1600, ...
麗臺 的CX23418 系列產品: DVR3100 H, DVR3100 Hm, ...

MT353 是"俗名", 正式的名字有2種 :
Zarlink ZL10353 (sold to Intel) : http://products.zarlink.com/intel.htm
Intel CE 6353 : http://www.intel.com/design/celect/...tors/ce6353.htm

謝謝樓上 u892 跟 tw1965的補充...

那個原廠頁面小弟本來就有稍微去看過, 其實本來是想問原廠有沒比較清楚明顯的晶片規格比較表比較明瞭... :ase

另外, 昨天跟麗臺朋友要到內部測試畫面了, 陸續貼出來跟大家分享！
好讓商品上市前大家心裡能有個大概的底, 知道DVR3100 H的初步能力在何處, 當然, 上市前還會再經過一次Fine Tune動作的啦！

未免引起不必要的筆戰, 另一個對照組就不說是哪張卡了... :ase


對照組（CH06_83250KHz_40dBuV）


DVR3100 H（CH06_83250KHz_40dBuV）


對照組（CH06_83250KHz_50dBuV）


DVR3100 H（CH06_83250KHz_50dBuV）


對照組（CH06_83250KHz_60dBuV）


DVR3100 H（CH06_83250KHz_60dBuV）


對照組（CH06_83250KHz_70dBuV）


DVR3100 H（CH06_83250KHz_70dBuV）

為什麼這張卡售價比PVR3000便宜?
是因為這張卡等級比較低嗎?

兩張卡的架構＆等級確實不同！

PVR3000還專門用一顆NEC晶片處理3D Y/C, 畫質表現上自然比DVR3100 H還強！

PVR3000比較適合追求畫質極致的朋友, 而DVR3100 H對於畫質表現上, 以及價錢考量上, C/P值則蠻高的！

今天有拿到抓到一些實際電視節目錄製結果, 晚點傳給大家分享∼ :agree:

小見大大有辦手搆記得通知一下,有這部份新的資訊也提共一下參考,感恩~

嗯...

我最近再抽空去看看麗臺的國內包裝好了沒, 若好的話會爭取看看能否來個PCDVD首購的... :ase

請問一下, 那個 "對照組" 也是 Xceive silicon tuner 嗎? :)

從測試條件上看來 40 dBuV 是很弱的訊號了, 就算是有 3D Y/C 的加持, 還是出現彩斑. 不過動態畫面比靜態圖更能接近實際表現. 60-70 dBuV 表現都不錯, 但 DVR3100 H 的漸層表現應該可以再好一點.

Yes... 那個對照組也是 Xceive Silicon Tuner.

這些圖是Sample Run時抓的, 漸層部分還會再轉達麗臺再Fine Tune更好些, 謝謝您的建議唷！ :agree: