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Commit 72e69166 authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: doc: ReSTize Audigy-mixer.txt 

Another simple conversion from a plain text file.
Put to cards subdirectory.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ecef1481
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Documentation/sound/alsa/Audigy-mixer.txt → Documentation/sound/cards/audigy-mixer.rst
View file @ 72e69166
=============================================
Sound Blaster Audigy mixer / default DSP code
=============================================
Sound Blaster Audigy mixer / default DSP code This is based on sb-live-mixer.rst.
===========================================
This is based on SB-Live-mixer.txt.
The EMU10K2 chips have a DSP part which can be programmed to support The EMU10K2 chips have a DSP part which can be programmed to support
various ways of sample processing, which is described here. various ways of sample processing, which is described here.
...@@ -13,8 +13,8 @@ The ALSA driver programs this portion of chip by default code ...@@ -13,8 +13,8 @@ The ALSA driver programs this portion of chip by default code
(can be altered later) which offers the following functionality: (can be altered later) which offers the following functionality:
1) Digital mixer controls Digital mixer controls
------------------------- ======================
These controls are built using the DSP instructions. They offer extended These controls are built using the DSP instructions. They offer extended
functionality. Only the default build-in code in the ALSA driver is described functionality. Only the default build-in code in the ALSA driver is described
...@@ -26,320 +26,343 @@ is mentioned in multiple controls, the signal is accumulated and can be wrapped ...@@ -26,320 +26,343 @@ is mentioned in multiple controls, the signal is accumulated and can be wrapped
Explanation of used abbreviations: Explanation of used abbreviations:
DAC - digital to analog converter DAC
ADC - analog to digital converter digital to analog converter
I2S - one-way three wire serial bus for digital sound by Philips Semiconductors ADC
(this standard is used for connecting standalone DAC and ADC converters) analog to digital converter
LFE - low frequency effects (subwoofer signal) I2S
AC97 - a chip containing an analog mixer, DAC and ADC converters one-way three wire serial bus for digital sound by Philips Semiconductors
IEC958 - S/PDIF (this standard is used for connecting standalone DAC and ADC converters)
FX-bus - the EMU10K2 chip has an effect bus containing 64 accumulators. LFE
Each of the synthesizer voices can feed its output to these accumulators low frequency effects (subwoofer signal)
and the DSP microcontroller can operate with the resulting sum. AC97
a chip containing an analog mixer, DAC and ADC converters
IEC958
S/PDIF
FX-bus
the EMU10K2 chip has an effect bus containing 64 accumulators.
Each of the synthesizer voices can feed its output to these accumulators
and the DSP microcontroller can operate with the resulting sum.
name='PCM Front Playback Volume',index=0 name='PCM Front Playback Volume',index=0
----------------------------------------
This control is used to attenuate samples for left and right front PCM FX-bus This control is used to attenuate samples for left and right front PCM FX-bus
accumulators. ALSA uses accumulators 8 and 9 for left and right front PCM accumulators. ALSA uses accumulators 8 and 9 for left and right front PCM
samples for 5.1 playback. The result samples are forwarded to the front DAC PCM samples for 5.1 playback. The result samples are forwarded to the front DAC PCM
slots of the Philips DAC. slots of the Philips DAC.
name='PCM Surround Playback Volume',index=0 name='PCM Surround Playback Volume',index=0
-------------------------------------------
This control is used to attenuate samples for left and right surround PCM FX-bus This control is used to attenuate samples for left and right surround PCM FX-bus
accumulators. ALSA uses accumulators 2 and 3 for left and right surround PCM accumulators. ALSA uses accumulators 2 and 3 for left and right surround PCM
samples for 5.1 playback. The result samples are forwarded to the surround DAC PCM samples for 5.1 playback. The result samples are forwarded to the surround DAC PCM
slots of the Philips DAC. slots of the Philips DAC.
name='PCM Center Playback Volume',index=0 name='PCM Center Playback Volume',index=0
-----------------------------------------
This control is used to attenuate samples for center PCM FX-bus accumulator. This control is used to attenuate samples for center PCM FX-bus accumulator.
ALSA uses accumulator 6 for center PCM sample for 5.1 playback. The result sample ALSA uses accumulator 6 for center PCM sample for 5.1 playback. The result sample
is forwarded to the center DAC PCM slot of the Philips DAC. is forwarded to the center DAC PCM slot of the Philips DAC.
name='PCM LFE Playback Volume',index=0 name='PCM LFE Playback Volume',index=0
--------------------------------------
This control is used to attenuate sample for LFE PCM FX-bus accumulator. This control is used to attenuate sample for LFE PCM FX-bus accumulator.
ALSA uses accumulator 7 for LFE PCM sample for 5.1 playback. The result sample ALSA uses accumulator 7 for LFE PCM sample for 5.1 playback. The result sample
is forwarded to the LFE DAC PCM slot of the Philips DAC. is forwarded to the LFE DAC PCM slot of the Philips DAC.
name='PCM Playback Volume',index=0 name='PCM Playback Volume',index=0
----------------------------------
This control is used to attenuate samples for left and right PCM FX-bus This control is used to attenuate samples for left and right PCM FX-bus
accumulators. ALSA uses accumulators 0 and 1 for left and right PCM samples for accumulators. ALSA uses accumulators 0 and 1 for left and right PCM samples for
stereo playback. The result samples are forwarded to the front DAC PCM slots stereo playback. The result samples are forwarded to the front DAC PCM slots
of the Philips DAC. of the Philips DAC.
name='PCM Capture Volume',index=0 name='PCM Capture Volume',index=0
---------------------------------
This control is used to attenuate samples for left and right PCM FX-bus This control is used to attenuate samples for left and right PCM FX-bus
accumulator. ALSA uses accumulators 0 and 1 for left and right PCM. accumulator. ALSA uses accumulators 0 and 1 for left and right PCM.
The result is forwarded to the ADC capture FIFO (thus to the standard capture The result is forwarded to the ADC capture FIFO (thus to the standard capture
PCM device). PCM device).
name='Music Playback Volume',index=0 name='Music Playback Volume',index=0
------------------------------------
This control is used to attenuate samples for left and right MIDI FX-bus This control is used to attenuate samples for left and right MIDI FX-bus
accumulators. ALSA uses accumulators 4 and 5 for left and right MIDI samples. accumulators. ALSA uses accumulators 4 and 5 for left and right MIDI samples.
The result samples are forwarded to the front DAC PCM slots of the AC97 codec. The result samples are forwarded to the front DAC PCM slots of the AC97 codec.
name='Music Capture Volume',index=0 name='Music Capture Volume',index=0
-----------------------------------
These controls are used to attenuate samples for left and right MIDI FX-bus These controls are used to attenuate samples for left and right MIDI FX-bus
accumulator. ALSA uses accumulators 4 and 5 for left and right PCM. accumulator. ALSA uses accumulators 4 and 5 for left and right PCM.
The result is forwarded to the ADC capture FIFO (thus to the standard capture The result is forwarded to the ADC capture FIFO (thus to the standard capture
PCM device). PCM device).
name='Mic Playback Volume',index=0 name='Mic Playback Volume',index=0
----------------------------------
This control is used to attenuate samples for left and right Mic input. This control is used to attenuate samples for left and right Mic input.
For Mic input is used AC97 codec. The result samples are forwarded to For Mic input is used AC97 codec. The result samples are forwarded to
the front DAC PCM slots of the Philips DAC. Samples are forwarded to Mic the front DAC PCM slots of the Philips DAC. Samples are forwarded to Mic
capture FIFO (device 1 - 16bit/8KHz mono) too without volume control. capture FIFO (device 1 - 16bit/8KHz mono) too without volume control.
name='Mic Capture Volume',index=0 name='Mic Capture Volume',index=0
---------------------------------
This control is used to attenuate samples for left and right Mic input. This control is used to attenuate samples for left and right Mic input.
The result is forwarded to the ADC capture FIFO (thus to the standard capture The result is forwarded to the ADC capture FIFO (thus to the standard capture
PCM device). PCM device).
name='Audigy CD Playback Volume',index=0 name='Audigy CD Playback Volume',index=0
----------------------------------------
This control is used to attenuate samples from left and right IEC958 TTL This control is used to attenuate samples from left and right IEC958 TTL
digital inputs (usually used by a CDROM drive). The result samples are digital inputs (usually used by a CDROM drive). The result samples are
forwarded to the front DAC PCM slots of the Philips DAC. forwarded to the front DAC PCM slots of the Philips DAC.
name='Audigy CD Capture Volume',index=0 name='Audigy CD Capture Volume',index=0
---------------------------------------
This control is used to attenuate samples from left and right IEC958 TTL This control is used to attenuate samples from left and right IEC958 TTL
digital inputs (usually used by a CDROM drive). The result samples are digital inputs (usually used by a CDROM drive). The result samples are
forwarded to the ADC capture FIFO (thus to the standard capture PCM device). forwarded to the ADC capture FIFO (thus to the standard capture PCM device).
name='IEC958 Optical Playback Volume',index=0 name='IEC958 Optical Playback Volume',index=0
---------------------------------------------
This control is used to attenuate samples from left and right IEC958 optical This control is used to attenuate samples from left and right IEC958 optical
digital input. The result samples are forwarded to the front DAC PCM slots digital input. The result samples are forwarded to the front DAC PCM slots
of the Philips DAC. of the Philips DAC.
name='IEC958 Optical Capture Volume',index=0 name='IEC958 Optical Capture Volume',index=0
--------------------------------------------
This control is used to attenuate samples from left and right IEC958 optical This control is used to attenuate samples from left and right IEC958 optical
digital inputs. The result samples are forwarded to the ADC capture FIFO digital inputs. The result samples are forwarded to the ADC capture FIFO
(thus to the standard capture PCM device). (thus to the standard capture PCM device).
name='Line2 Playback Volume',index=0 name='Line2 Playback Volume',index=0
------------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs (on the AudigyDrive). The result samples are forwarded to the front inputs (on the AudigyDrive). The result samples are forwarded to the front
DAC PCM slots of the Philips DAC. DAC PCM slots of the Philips DAC.
name='Line2 Capture Volume',index=1 name='Line2 Capture Volume',index=1
-----------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs (on the AudigyDrive). The result samples are forwarded to the ADC inputs (on the AudigyDrive). The result samples are forwarded to the ADC
capture FIFO (thus to the standard capture PCM device). capture FIFO (thus to the standard capture PCM device).
name='Analog Mix Playback Volume',index=0 name='Analog Mix Playback Volume',index=0
-----------------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs from Philips ADC. The result samples are forwarded to the front inputs from Philips ADC. The result samples are forwarded to the front
DAC PCM slots of the Philips DAC. This contains mix from analog sources DAC PCM slots of the Philips DAC. This contains mix from analog sources
like CD, Line In, Aux, .... like CD, Line In, Aux, ....
name='Analog Mix Capture Volume',index=1 name='Analog Mix Capture Volume',index=1
----------------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs Philips ADC. The result samples are forwarded to the ADC inputs Philips ADC. The result samples are forwarded to the ADC
capture FIFO (thus to the standard capture PCM device). capture FIFO (thus to the standard capture PCM device).
name='Aux2 Playback Volume',index=0 name='Aux2 Playback Volume',index=0
-----------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs (on the AudigyDrive). The result samples are forwarded to the front inputs (on the AudigyDrive). The result samples are forwarded to the front
DAC PCM slots of the Philips DAC. DAC PCM slots of the Philips DAC.
name='Aux2 Capture Volume',index=1 name='Aux2 Capture Volume',index=1
----------------------------------
This control is used to attenuate samples from left and right I2S ADC This control is used to attenuate samples from left and right I2S ADC
inputs (on the AudigyDrive). The result samples are forwarded to the ADC inputs (on the AudigyDrive). The result samples are forwarded to the ADC
capture FIFO (thus to the standard capture PCM device). capture FIFO (thus to the standard capture PCM device).
name='Front Playback Volume',index=0 name='Front Playback Volume',index=0
------------------------------------
All stereo signals are mixed together and mirrored to surround, center and LFE. All stereo signals are mixed together and mirrored to surround, center and LFE.
This control is used to attenuate samples for left and right front speakers of This control is used to attenuate samples for left and right front speakers of
this mix. this mix.
name='Surround Playback Volume',index=0 name='Surround Playback Volume',index=0
---------------------------------------
All stereo signals are mixed together and mirrored to surround, center and LFE. All stereo signals are mixed together and mirrored to surround, center and LFE.
This control is used to attenuate samples for left and right surround speakers of This control is used to attenuate samples for left and right surround speakers of
this mix. this mix.
name='Center Playback Volume',index=0 name='Center Playback Volume',index=0
-------------------------------------
All stereo signals are mixed together and mirrored to surround, center and LFE. All stereo signals are mixed together and mirrored to surround, center and LFE.
This control is used to attenuate sample for center speaker of this mix. This control is used to attenuate sample for center speaker of this mix.
name='LFE Playback Volume',index=0 name='LFE Playback Volume',index=0
----------------------------------
All stereo signals are mixed together and mirrored to surround, center and LFE. All stereo signals are mixed together and mirrored to surround, center and LFE.
This control is used to attenuate sample for LFE speaker of this mix. This control is used to attenuate sample for LFE speaker of this mix.
name='Tone Control - Switch',index=0 name='Tone Control - Switch',index=0
------------------------------------
This control turns the tone control on or off. The samples for front, rear This control turns the tone control on or off. The samples for front, rear
and center / LFE outputs are affected. and center / LFE outputs are affected.
name='Tone Control - Bass',index=0 name='Tone Control - Bass',index=0
----------------------------------
This control sets the bass intensity. There is no neutral value!! This control sets the bass intensity. There is no neutral value!!
When the tone control code is activated, the samples are always modified. When the tone control code is activated, the samples are always modified.
The closest value to pure signal is 20. The closest value to pure signal is 20.
name='Tone Control - Treble',index=0 name='Tone Control - Treble',index=0
------------------------------------
This control sets the treble intensity. There is no neutral value!! This control sets the treble intensity. There is no neutral value!!
When the tone control code is activated, the samples are always modified. When the tone control code is activated, the samples are always modified.
The closest value to pure signal is 20. The closest value to pure signal is 20.
name='Master Playback Volume',index=0 name='Master Playback Volume',index=0
-------------------------------------
This control is used to attenuate samples for front, surround, center and This control is used to attenuate samples for front, surround, center and
LFE outputs. LFE outputs.
name='IEC958 Optical Raw Playback Switch',index=0 name='IEC958 Optical Raw Playback Switch',index=0
-------------------------------------------------
If this switch is on, then the samples for the IEC958 (S/PDIF) digital If this switch is on, then the samples for the IEC958 (S/PDIF) digital
output are taken only from the raw FX8010 PCM, otherwise standard front output are taken only from the raw FX8010 PCM, otherwise standard front
PCM samples are taken. PCM samples are taken.
2) PCM stream related controls PCM stream related controls
------------------------------ ===========================
name='EMU10K1 PCM Volume',index 0-31 name='EMU10K1 PCM Volume',index 0-31
------------------------------------
Channel volume attenuation in range 0-0xffff. The maximum value (no Channel volume attenuation in range 0-0xffff. The maximum value (no
attenuation) is default. The channel mapping for three values is attenuation) is default. The channel mapping for three values is
as follows: as follows:
0 - mono, default 0xffff (no attenuation) * 0 - mono, default 0xffff (no attenuation)
1 - left, default 0xffff (no attenuation) * 1 - left, default 0xffff (no attenuation)
2 - right, default 0xffff (no attenuation) * 2 - right, default 0xffff (no attenuation)
name='EMU10K1 PCM Send Routing',index 0-31 name='EMU10K1 PCM Send Routing',index 0-31
------------------------------------------
This control specifies the destination - FX-bus accumulators. There 24 This control specifies the destination - FX-bus accumulators. There 24
values with this mapping: values with this mapping:
0 - mono, A destination (FX-bus 0-63), default 0 * 0 - mono, A destination (FX-bus 0-63), default 0
1 - mono, B destination (FX-bus 0-63), default 1 * 1 - mono, B destination (FX-bus 0-63), default 1
2 - mono, C destination (FX-bus 0-63), default 2 * 2 - mono, C destination (FX-bus 0-63), default 2
3 - mono, D destination (FX-bus 0-63), default 3 * 3 - mono, D destination (FX-bus 0-63), default 3
4 - mono, E destination (FX-bus 0-63), default 0 * 4 - mono, E destination (FX-bus 0-63), default 0
5 - mono, F destination (FX-bus 0-63), default 0 * 5 - mono, F destination (FX-bus 0-63), default 0
6 - mono, G destination (FX-bus 0-63), default 0 * 6 - mono, G destination (FX-bus 0-63), default 0
7 - mono, H destination (FX-bus 0-63), default 0 * 7 - mono, H destination (FX-bus 0-63), default 0
8 - left, A destination (FX-bus 0-63), default 0 * 8 - left, A destination (FX-bus 0-63), default 0
9 - left, B destination (FX-bus 0-63), default 1 * 9 - left, B destination (FX-bus 0-63), default 1
10 - left, C destination (FX-bus 0-63), default 2 * 10 - left, C destination (FX-bus 0-63), default 2
11 - left, D destination (FX-bus 0-63), default 3 * 11 - left, D destination (FX-bus 0-63), default 3
12 - left, E destination (FX-bus 0-63), default 0 * 12 - left, E destination (FX-bus 0-63), default 0
13 - left, F destination (FX-bus 0-63), default 0 * 13 - left, F destination (FX-bus 0-63), default 0
14 - left, G destination (FX-bus 0-63), default 0 * 14 - left, G destination (FX-bus 0-63), default 0
15 - left, H destination (FX-bus 0-63), default 0 * 15 - left, H destination (FX-bus 0-63), default 0
16 - right, A destination (FX-bus 0-63), default 0 * 16 - right, A destination (FX-bus 0-63), default 0
17 - right, B destination (FX-bus 0-63), default 1 * 17 - right, B destination (FX-bus 0-63), default 1
18 - right, C destination (FX-bus 0-63), default 2 * 18 - right, C destination (FX-bus 0-63), default 2
19 - right, D destination (FX-bus 0-63), default 3 * 19 - right, D destination (FX-bus 0-63), default 3
20 - right, E destination (FX-bus 0-63), default 0 * 20 - right, E destination (FX-bus 0-63), default 0
21 - right, F destination (FX-bus 0-63), default 0 * 21 - right, F destination (FX-bus 0-63), default 0
22 - right, G destination (FX-bus 0-63), default 0 * 22 - right, G destination (FX-bus 0-63), default 0
23 - right, H destination (FX-bus 0-63), default 0 * 23 - right, H destination (FX-bus 0-63), default 0
Don't forget that it's illegal to assign a channel to the same FX-bus accumulator Don't forget that it's illegal to assign a channel to the same FX-bus accumulator
more than once (it means 0=0 && 1=0 is an invalid combination). more than once (it means 0=0 && 1=0 is an invalid combination).
name='EMU10K1 PCM Send Volume',index 0-31 name='EMU10K1 PCM Send Volume',index 0-31
-----------------------------------------
It specifies the attenuation (amount) for given destination in range 0-255. It specifies the attenuation (amount) for given destination in range 0-255.
The channel mapping is following: The channel mapping is following:
0 - mono, A destination attn, default 255 (no attenuation) * 0 - mono, A destination attn, default 255 (no attenuation)
1 - mono, B destination attn, default 255 (no attenuation) * 1 - mono, B destination attn, default 255 (no attenuation)
2 - mono, C destination attn, default 0 (mute) * 2 - mono, C destination attn, default 0 (mute)
3 - mono, D destination attn, default 0 (mute) * 3 - mono, D destination attn, default 0 (mute)
4 - mono, E destination attn, default 0 (mute) * 4 - mono, E destination attn, default 0 (mute)
5 - mono, F destination attn, default 0 (mute) * 5 - mono, F destination attn, default 0 (mute)
6 - mono, G destination attn, default 0 (mute) * 6 - mono, G destination attn, default 0 (mute)
7 - mono, H destination attn, default 0 (mute) * 7 - mono, H destination attn, default 0 (mute)
8 - left, A destination attn, default 255 (no attenuation) * 8 - left, A destination attn, default 255 (no attenuation)
9 - left, B destination attn, default 0 (mute) * 9 - left, B destination attn, default 0 (mute)
10 - left, C destination attn, default 0 (mute) * 10 - left, C destination attn, default 0 (mute)
11 - left, D destination attn, default 0 (mute) * 11 - left, D destination attn, default 0 (mute)
12 - left, E destination attn, default 0 (mute) * 12 - left, E destination attn, default 0 (mute)
13 - left, F destination attn, default 0 (mute) * 13 - left, F destination attn, default 0 (mute)
14 - left, G destination attn, default 0 (mute) * 14 - left, G destination attn, default 0 (mute)
15 - left, H destination attn, default 0 (mute) * 15 - left, H destination attn, default 0 (mute)
16 - right, A destination attn, default 0 (mute) * 16 - right, A destination attn, default 0 (mute)
17 - right, B destination attn, default 255 (no attenuation) * 17 - right, B destination attn, default 255 (no attenuation)
18 - right, C destination attn, default 0 (mute) * 18 - right, C destination attn, default 0 (mute)
19 - right, D destination attn, default 0 (mute) * 19 - right, D destination attn, default 0 (mute)
20 - right, E destination attn, default 0 (mute) * 20 - right, E destination attn, default 0 (mute)
21 - right, F destination attn, default 0 (mute) * 21 - right, F destination attn, default 0 (mute)
22 - right, G destination attn, default 0 (mute) * 22 - right, G destination attn, default 0 (mute)
23 - right, H destination attn, default 0 (mute) * 23 - right, H destination attn, default 0 (mute)
4) MANUALS/PATENTS: MANUALS/PATENTS
------------------- ===============
ftp://opensource.creative.com/pub/doc ftp://opensource.creative.com/pub/doc
------------------------------------- -------------------------------------
Files: LM4545.pdf
LM4545.pdf AC97 Codec AC97 Codec
m2049.pdf The EMU10K1 Digital Audio Processor m2049.pdf
The EMU10K1 Digital Audio Processor
hog63.ps FX8010 - A DSP Chip Architecture for Audio Effects hog63.ps
FX8010 - A DSP Chip Architecture for Audio Effects
WIPO Patents WIPO Patents
------------ ------------
Patent numbers:
WO 9901813 (A1) Audio Effects Processor with multiple asynchronous (Jan. 14, 1999)
streams
WO 9901814 (A1) Processor with Instruction Set for Audio Effects (Jan. 14, 1999) WO 9901813 (A1)
Audio Effects Processor with multiple asynchronous streams
(Jan. 14, 1999)
WO 9901814 (A1)
Processor with Instruction Set for Audio Effects (Jan. 14, 1999)
WO 9901953 (A1) Audio Effects Processor having Decoupled Instruction WO 9901953 (A1)
Execution and Audio Data Sequencing (Jan. 14, 1999) Audio Effects Processor having Decoupled Instruction
Execution and Audio Data Sequencing (Jan. 14, 1999)
US Patents (http://www.uspto.gov/) US Patents (http://www.uspto.gov/)
---------------------------------- ----------------------------------
US 5925841 Digital Sampling Instrument employing cache memory (Jul. 20, 1999) US 5925841
Digital Sampling Instrument employing cache memory (Jul. 20, 1999)
US 5928342 Audio Effects Processor integrated on a single chip (Jul. 27, 1999)
with a multiport memory onto which multiple asynchronous US 5928342
digital sound samples can be concurrently loaded Audio Effects Processor integrated on a single chip
with a multiport memory onto which multiple asynchronous
US 5930158 Processor with Instruction Set for Audio Effects (Jul. 27, 1999) digital sound samples can be concurrently loaded
(Jul. 27, 1999)
US 6032235 Memory initialization circuit (Tram) (Feb. 29, 2000)
US 5930158
US 6138207 Interpolation looping of audio samples in cache connected to (Oct. 24, 2000) Processor with Instruction Set for Audio Effects (Jul. 27, 1999)
system bus with prioritization and modification of bus transfers
in accordance with loop ends and minimum block sizes US 6032235
Memory initialization circuit (Tram) (Feb. 29, 2000)
US 6151670 Method for conserving memory storage using a (Nov. 21, 2000)
pool of short term memory registers US 6138207
Interpolation looping of audio samples in cache connected to
US 6195715 Interrupt control for multiple programs communicating with (Feb. 27, 2001) system bus with prioritization and modification of bus transfers
a common interrupt by associating programs to GP registers, in accordance with loop ends and minimum block sizes
defining interrupt register, polling GP registers, and invoking (Oct. 24, 2000)
callback routine associated with defined interrupt register
US 6151670
Method for conserving memory storage using a
pool of short term memory registers
(Nov. 21, 2000)
US 6195715
Interrupt control for multiple programs communicating with
a common interrupt by associating programs to GP registers,
defining interrupt register, polling GP registers, and invoking
callback routine associated with defined interrupt register
(Feb. 27, 2001)
Documentation/sound/cards/index.rst
View file @ 72e69166
...@@ -7,3 +7,5 @@ Card-Specific Information ...@@ -7,3 +7,5 @@ Card-Specific Information
joystick joystick
cmipci cmipci
sb-live-mixer sb-live-mixer
audigy-mixer
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