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Âûâåäå* ëè AC97 Record Gain ** ìèêñåð ?

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Old Nov 29, 2003, 07:08 PM   #1
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Âûâåäå* ëè AC97 Record Gain ** ìèêñåð ?
Í* STAC9708 ïåðåä ÀÖÏ ñòîèò ðåãóëèðåìûé óñèëèòåëü 0...+22.5 äÁ, ê-ðûé óïð*âëÿåòñÿ ÷åðåç Record Gain Register (0x1c). Ô*êòè÷åñêè ìå*ÿåò ïîë*óþ øê*ëó âõîäîâ îò 1  äî 100 ìÂ. Îä**êî *è îäè* ôåéäåð ** ìèêøåðå ò*êîãî ýôôåêò* *å ä*åò.

Ñåé÷*ñ ïîãî*ÿë ýòîò ðåãèñòð ïðè ïîìîùè kxctrl -sac97, äåéñòâèòåëü*î ð*áîò*åò.

Ò.å. ïîëó÷*åòñÿ, ÷òî ïðè óïð*âëå*èè ÷åðåç ìèêñåð âõîäû AC97 âñåãä* ñòîÿò ** ÷óâñòâèòåëü*îñòè â 1 Â, * ä*ëüøå ñèã**ë ñ *èõ ìîæ*î òîëüêî îñë*áëÿòü.

×òî â ïë**å "unfettered access to all hardware features" ê*ê-òî *å*êêóð*ò*å*üêî )
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Old Nov 30, 2003, 02:01 AM   #2
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Åñòü ò*ê*ÿ *åïðèÿò*îñòü... (â ïðè*öèïå ýòîò ðåãóëÿòîð ìîæ*î ñâîèìè ñèë*ìè äîá*âèòü â ìèêøåð ñëåãê* ìîäèôèöèðîâ*â ñêè*)
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Old Nov 30, 2003, 02:05 AM   #3
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*ó ä*. åñòü ò*êîå äåëî. ïðîñòî ëè÷*î ó ìå*ÿ óæå ïî÷òè ãîä *åò ** ðóê*õ *è îä*îé ê*ðòî÷êè ñ *ñ97-êîäåêîì
(è, êñò*òè, ó áîëüøè*ñòâ* êîäåêîâ ýòîò ðåãèñòð, âðîäå, *å äîñòóïå*... **äî áóäåò ïåðå÷èò*òü äîêè )

â ïðè*öèïå, äîá*âèòü ýòîò ñë*éäåð ïðîñòî -- **äî ëèøü îòðåä*êòèðîâ*òü kxskin

/E
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Old Nov 30, 2003, 08:36 PM Threadstarter Thread Starter   #4
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Quote:
Originally posted by Eugene Gavrilov
(è, êñò*òè, ó áîëüøè*ñòâ* êîäåêîâ ýòîò ðåãèñòð, âðîäå, *å äîñòóïå*... **äî áóäåò ïåðå÷èò*òü äîêè )
Âî âñÿêîì ñëó÷*å ó SigmaTel - äîñòóïå* ó îáîèõ, * ýòî SB060, ..., SB0220, ò.å. ì*îãî.


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â ïðè*öèïå, äîá*âèòü ýòîò ñë*éäåð ïðîñòî -- **äî ëèøü îòðåä*êòèðîâ*òü kxskin
ÎÊ, ñäåë*ë, ïóòåì êîïèðîâ**èÿ AC97 Line In ñ ïîñëåäóþùèì ðåä*êòèðîâ**èåì. Âîò òîëüêî ó Rec Gain âîçð*ñò**èå ç**÷å*èÿ ñîîòâåòñòâóåò *å îñë*áëå*èþ, * óñèëå*èþ (â îòë. îò îñò*ëü*ûõ).  ðåçóëüò*òå ñë*éäåð ð*áîò*åò ââåðõ *îã*ìè. Êîñìåòèê*, *î òåì *å ìå*åå, åãî â ïðè*öèïå ìîæ*î ïåðåâåð*óòü ?
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Old Nov 30, 2003, 10:53 PM   #5
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äóì*þ, â òåêóùåé âåðñèè - *åëüçÿ

** ñ*ìîì äåëå, ÿ ïîê* *å î÷å*ü óâåðå*, ÷òî èìååò ñìûñë äîá*âëÿòü ýòîò ñë*éäåð â ìèêøåð "ïî óìîë÷**èþ" -- ëþäè è ò*ê-òî ïóò*þòñÿ, ê*ê ñ *ñ97 ÷òî-òî ïèñ*òü -- * òóò åù¸ îäè* äîïîë*èòåëü*ûé ñë*éäåð...
÷òî ê*ñ*åòñÿ åãî "â*óòðå**åé" ïîääåðæêè (÷òîá ïð*âèëü*î ðèñîâ*ëñÿ ïîñëå äîá*âëå*èÿ â ñêè*) -- ñêîðåå âñåãî, äîá*âëþ


/Å
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Old Dec 1, 2003, 03:55 AM Threadstarter Thread Starter   #6
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Åâãå*èé, âîò çäåñü âû ìå*ÿ ïîâåñåëèëè ñëåãê*. Í* ôî*å kX DSP è kX Router ç*áîòèòüñÿ î òîì, ê*ê áû ïîëüçîâ*òåëü *å ç*ïóò*ëñÿ â ðó÷êå _óðîâ*ÿ ç*ïèñè_ - ýòî ñèëü*î.

Í* ñ*ìîì äåëå áåç äîñòóï* ê Rec Gain ç*ïèñü ñ 97 âîîáùå òåðÿåò ñìûñë. Ýòî ***ëîãîâ*ÿ ðåãóëèðîâê*, ïåðåä ÀÖÏ, è åå **ç**÷å*èå - âîçìîæ*î òî÷*åå âïèñ*òü ñèã**ë â ïîë*óþ øê*ëó â 16 áèò (èëè ñêîëüêî ò*ì îñò*åòñÿ ** ôî*å 75 äÁ Ñ/Ø). À ïî óìîë÷**èþ ÀÖÏ ñòîèò ** øê*ëå â 2  (1.4 ó AC97 ïëþñ äåëèòåëü 1/1.5 ** ïë*òå SB). Áûòîâûõ èñòî÷*èêîâ ñèã**ë* ñ ò*êèì óðîâ*åì ïðîñòî *åò.

Êñò*òè, ** âè*äîâñêîì ìèêñåðå ýò* ðåãóëèðîâê* åñòü âñåãä* (ô*êòè÷åñêè âñå ðó÷êè Recording Control èìå**î ê *åé è îáð*ù*þòñÿ). ×òî è ïð*âèëü*î : â öåïî÷êå èñòî÷*èê-ÀÖÏ ðåãóëèðîâ*òü **äî _äî_ ÀÖÏ.

×òî ê*ñ*åòñÿ ñëîæ*îñòè, AC97 ñ òî÷êè çðå*èÿ ***ëîãîâîé áëîê-ñõåìû *å îòëè÷*åòñÿ îò ñò*ðûõ "WSS-ñîâìåñòèìûõ" ê*ðòî÷åê ðåøèòåëü*î *è÷åì. Âîò òóò òî÷*î "êîìó **äî - ð*çáåðåòñÿ".
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Old Dec 2, 2003, 11:12 PM   #7
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êõì -- òåïåðü ì*å âåñåëî
"âñåãî îäè*" -- *å âñåãî îäè*, * =òðåòèé ïî ñ÷¸òó=
ò.å. "master rec level" (êóä* áåç *åãî) + "*ñ97 rec level" (òîò ÷òî â ÄÑÏ) + "*ñ97 rec gain" (** âêë*äêå *ñ97)
êõì...
ñ ó÷¸òîì òîãî, ÷òî ä*æå ïðîñòîé âûáîð *ñ97 èñòî÷*èê* îáû÷*î âûçûâ*åò ï**èêó...

* "ïðèâÿçûâ*òü" åãî *âòîì*òè÷åñêè ê ÷åìó-òî -- ïëîõ*ÿ èäåÿ
ë*ä*î, **äî áóäåò ïîäóì*òü, ê*ê *å èñïóã*òü ïîëüçîâ*òåëåé ïîäîá*îé øòóêîé

/Å
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Old Dec 3, 2003, 12:09 AM Threadstarter Thread Starter   #8
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Ç*òî ÿ â*ì ð*ññê*æó, ê*ê èñïóã*òü ïîëüçîâ*òåëÿ åãî îòñóòñòâèåì.

Åñëè îïÿòü áð*òü ìîé ïð*êòè÷åñêèé ñëó÷*é (ãèò*ð* ** âõîäå), òî *è Master Rec Level, *è AC97 Rec Level ÿ *å òðîã*ë *è ð*çó, î*è ñòîÿò ** 100%. Ò.ê. *åòó ñìûñë* ñ**÷*ë* ñ ãðåõîì ïîïîë*ì âûòÿãèâ*òü ïîë*ûå 16 áèò, * ïîòîì èõ äåëèòü ** ÷òî-òî. À âîò Rec Gain... Íó âû âèäåëè )

Êñò*òè (*å ñîâñåì ïî òåìå), ** SigmaTel'åâñêîì êîäåêå ** óäèâëå*èå ê*÷åñòâå***ÿ ***ëîãîâ*ÿ ÷*ñòü. Óâåëè÷å*èå Rec Gain ** 20 äÁ óâåëè÷èâ*åò óðîâå*ü øóì* òîëüêî ** 6 äá. Ò.å. ýòî æåëåçî ñòîèò òîãî, ÷òî áû èì ìîæ*î áûëî óïð*âëÿòü.
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Old Dec 3, 2003, 06:19 PM   #9
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**äî áû, â ñëó÷*å, åñëè ÿ-ò*êè äîá*âëþ ò*êîé ñë*éäåð, ÷òîáû êòî-*èáóäü ïî-ïîäðîá*åå ð*ñïèñ*ë ïðî "ç*ïèñü ñ *ñ97" (è ó÷¸ë âñå òåêóùèå "õèòðîñòè", òèï* âûáîð* èñòî÷*èê* è ò.ä.)

/Å
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Old Dec 3, 2003, 08:47 PM Threadstarter Thread Starter   #10
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Quote:
Originally posted by Eugene Gavrilov
**äî áû, â ñëó÷*å, åñëè ÿ-ò*êè äîá*âëþ ò*êîé ñë*éäåð, ÷òîáû êòî-*èáóäü ïî-ïîäðîá*åå ð*ñïèñ*ë ïðî "ç*ïèñü ñ *ñ97" (è ó÷¸ë âñå òåêóùèå "õèòðîñòè", òèï* âûáîð* èñòî÷*èê* è ò.ä.)

/Å
Ê*ê ð*ç äóì*ë îá ýòîì. Ñ óäîâîëüñòâèåì ç*éìóñü â áëèæ*éøèå ä*è. Í* ìîé âçãëÿä, ýòî äîëæ** áûòü áëîê-ñõåì* èç äîêóìå*ò*öèè ïî STAC è îïèñ**èå, ê*êîé ñë*éäåð ÷åìó ** *åé ñîîòâåòñòâóåò.
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Old Dec 3, 2003, 10:02 PM   #11
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â âåðñèè 3536 ôè**ë (â "general" âåòêå ôîðóì*) ïîääåðæèâ*åòñÿ *ñ97 rec gain
ò.ê. ó ìå*ÿ *åò *è îä*îé ê*ðòî÷êè ñ *ñ97, ïèñ*ë *åñêîëüêî "âñëåïóþ" -- âîçìîæ*î, ÷òî-òî *å ò*ê --
ïðîñüá* ïðîâåðèòü

/Å

(3536 "äîãðóæó" äî 2:00*ì ÌÑÊ 4\12\2003 -- ôè**ë âûéäåò ** îñ*îâ*îì ñ*éòå â òå÷å*èå ñóòîê -- æåë*òåëü*î ïðîâåðèòü -äî- **î*ñ* ** www.kxproject.com )
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