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最新パソコン-究極的な情報
from 最新パソコン-究極的な情報
GeForce/Rade..
from 格安で高性能なCPU・メモリ..
EC サイト 構築
from Shoulder.jp
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> オンボードのサウンドノイズ
1980円の激安マザー JETWAY 600DAPは色々問題がある。オンボードのサウンドにPOPノイズがかなり入るのが気になっていたが、ドライバをA3.45から3.7へアップデートしたところ解消された。良かった良かった。

Realtek Semiconductor Corp.
http://www.realtek.com.tw/downloads/dlac97-2.aspx?sort=description&lineid=5&famid=12&series=8&Software=True

マザーのBIOSはアップの気配なし。A05 (08/16/04) 6HDAPA05.BINのまま。




--------
A3.70 -
1. Add some customized settings.
A3.69 -
1. Add some customized settings.
2. Add SPDIF IN pass throuth SPDIF Out item for some of ATI and nVidia chipsets.
3. Fix AC3 SPDIF blue screen issue when SPDIF-out force to 44K.
4. Change DMA Threshold from 06 to 10 to decrease noise for ATI SB400 chipset.
5. Update 3D engine to fix Half Life 2(Game) no sound issue and some noise issues.
A3.68 -
1. Add some customized settings.
2. Change DMA operation mode.
3. Fix SPDIF out issue for ALI1573 and ALI1689.
4. Fix SPDIF no output issue for digital and analog output mode in ALC658.
5. Fix SPDIF noise or no output issues in nVidia chipsets.
6. Fix audio can't be test in 3D Marks.
7. Fix UT2004 game noise issue.
A3.67 -
第2 頁
README.TXT
1. Add some customized settings.
2. SPDIF-out goes to AClink slot 6/9 for ATI SB400 when modem present.
3. Add New feature: Disable Analog CD.
4. Fix issue : mono-out volume synchronize with Master volume for ALC655 force 2 channel mode.
A3.66 -
1. Add some customized settings.
2. Enable Present ICH DMA hang up function in default.
3. Fix WarcraftIII game noise issue.
4. Add a new feature : Don't power taggle PR3 for ALC655 and ALC850.
5. Support swapping center Left function for nVidia CK804 chipset.
6. Support WHQL for nVidia CK804 chipset.
A3.65 -
1. Add some customized settings.
2. Fix SPDIF OUT no sound for ALC650 codec after power resume.
A3.64 -
1. Add some customized settings.
2. Update Realtek 3D engine.
3. Support AC3 SPDIF and 8 channels for nVidia CK804.
4. Fix EAPD issue after S1 or S3 resume.
5. Fix getposition not acceurate for ATI chipsets.
A3.63 -
1. Add some customized settings.
2. Fix underrun noise issue by changing threshold value for ATi chipset.
3. Fix 'Winbench' application issue in 4 channel mode when Sensaura engine is disabled.
A3.62 -
1. Add some customized settings.
2. Fix SPDIF Copy protect issue in Mediaplayer.
3. Support AC3 SPDIF and 8 channels for Ali1689 chipsets.
4. Reduce POP noise with EAPD for power change.
A3.61 -
1. Add some customized settings.
A3.60 -
1. Add some customized settings.
2. Add workaround code when pause DMA engine for ICH6 / Hance Rapid.
3. Fix bug for "Force 44K SPDIF" feature when disable direct sound acceleration engine.
4. Set Surr-out pin as HP-out pin for ALC655 when disable multi-channels function.
A3.59 -
1. Add some customized settings.
2. Add channel status information of SPDIF output for ATi chipset(SB150/SB200/SB250).
A3.58 -
1. Add some customized settings.
2. Fix some UI issues for Realtek control panel.
3. Fix some issues for ATi chipset(SB150/SB200/SB250).
4. Solve pop noise for noise suppression feature.
A3.57 -
1. Add some customized settings.
2. Fix some issues for the certain page of control panel.
A3.56 -
1. Add some customized settings.
2. Update directsound acceleration engine.
3. Fix the issue which control panel shows the improper item in
"Microphone" tab under some situation.
A3.55 -
1. Improve the algorithm of Jack sensing.
2. Add some customized settings.
3. Support ICH6.
4. Improve the algorithm for ALC250 Hardware EQ feature.
5. Fix the issue which AUX volume register will be set the improper value.
6. Improve the algorithm of Noise suppression feature.
7. Fix SPDIF output issue for "WaveCyclic" architecture.
A3.54 -
1. Add some customized settings.
第3 頁
README.TXT
2. Support Microphone Noise Suppression feature.
3. Toggle Vref before change Microphone jack type for AC97 2.3 codecs.
4. Modify Peak filter parameters for ALC655.
A3.53 -
1. Add some customized settings.
2. Add "Remove recording DC offset" feature.
3. Fix Hardware EQ noise issue for ALC250.
4. Support 1 nVidia chipset (CK8S).
5. Add workaround code for ATI chipset recording issue.
6. Support 8 channels playback feature for nVidia chipset with ALC850.
7. Fix the issue about SPDIF function type feature with ALC850.
8. Modify Peak Filter parameters for ALC655 and ALC850.
9. Fix side channel noise issue for VIA chipset with ALC850.
10.Add a new feature: SPDIF out can be sent to ACLink for ATI and nVidia Chipset.
11.Fix SPDIF slot assignment error for ALC850.
12.Support "Smart GPIO Volume Control" & "DC Voltage Volume Control" features for ALC250 and ALC203.
13.Turn on bit 14 of DC97_AUDIO_REG_INTERRUPT_ENABLE while audio playing for ATi chipset.
14.Add flexibility for "Preventing ICH hang up" feature.
15.Improve DirectMusic startup latency when HyperThreading was enabled.
16.Fix Pinball delay problem on Win2000.
17.This vesion does not include ALi 1535 chipset support.
A3.52 -
1. Add some customized settings.
2. Fix SPDIF output frequency issue for nVidia chipset.
3. Disable Hardware EQ first before restore Hardware EQ for ALC250 when resuem.
4. Disable Hardware EQ first before restore Hardware EQ for ALC250 polling function.
5. Turn on UAJ function for ALC850.
6. Set SPDIF control register to proper value when driver initialize.
7. Improve Read/Write codec register algorithm.
8. Reduce resume time.
9. Add "Remove Recording DC offset" feature.
10.Check ALC850 JD5 to decide if support 8-channels feature.
11.Fix SPDIF output slot assignment error for ALC850.
A3.51 -
1. Add ICH2, ICH3 and ATI Chipset IDs.
A3.50 -
1. Support ALC850.
2. Add some customized settings.
3. Use "Wave PCI" architecture for ATI chipset.
4. Improve Jack Sensing algorithm to eliminate noise.
5. Show "Real-Time SPDIF-in Monitor" node for nVidia chipset.
6. Remove ICH2/ICH3/ATi chipsets IDs.
7. Change JD bit definition of Front-out detection function for ALC658 (C version / D version).
8. Set "Direct DAC Mode" to Summation of DAC and analog inputs if H/w EQ is bypassed for ALC250.
A3.49 -
1. Modify some customize settings.
2. Fine tune some registers for ALC655 to avoid noise.
3. Fine tune Surround DAC Volume and Center/LFE DAC volume for ALC655.
4. Set ALC655 Vrefout as 4V for 1 customer.
5. Fix Intel audio device DMA hang up issue for some customers.
A3.48 -
1. Add some customize settings.
2. Turn on "Ignore SPDIF in Invalid Bit" option as default if codec support.
3. Set Pin 47 as EAPD pin and turn off SPDIF in function as default for ALC250&ALC203.
4. Use "WaveCyclic" architecture under Windows 98 Gold version.
5. Modify Realtek control panel that don't detect UAJ automatically
while Windows start for some customer's request.
6. Fix the failures on HCT 9.6 (WinME) "KS Position Accuracy" test.
7. Fix the problems with SPDIF output through DirectSound.
8. Prevent potential discontinuities in 8-bit streams.
9. Prevent potential audio system hangs on badly behaved audio drivers.
A3.47 -
1. Add some customize settings.
2. Turn off SPDIF-In Schmitt Trigger Control for ALC655.
3. Fix the problem that AC3 stream will hang with the older revision of VIA8233 under Win98 SE.
4. Fix the problem that AC3 stream will be abnormal with Direct sound API.
5. Add hand-shaking protocol between audio driver and modem driver for ATI chipset.
6. Disable "Mic2 Select" node in mixer for ALC655/ALC658.
第4 頁
README.TXT
7. Fix the bugcheck D1 in HCT verifier for nVidia chipset.
A3.46 -
1. Add some customize settings.
2. Add Hardware EQ function for ALC250.
3. Support independent SPDIF engine for nVidia CK8 chipset.
4. Modify driver for UAJ function.
5. Modify UAJ thresholds for ALC658.
6. Fix audio driver bug for ATI chipset.
7. Fix audio driver bug about nVidia independent SPDIF engine.
8. Change direct sound acceleration engine.(New engine require DirectX 8.1 under Windows 98 SE).
A3.45 -
1. Add some customize settings.
2. Reduce resume time for VIA chipset.
3. Modify mixer volume control algorithm for multi-channels codec to prevent
the value of mixer out of range.
4. Implement ATI dedicate SPDIF DMA engine.
5. Support ALC250 and ALC658.
6. Fix the problem that Jack Sensing will hang in Windows 98SE.
7. Fix ICH5 pause DMA issue.
[PR]
by e_kotatu | 2005-03-07 01:03 | PC・アキバ

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