- Less misinformation
- Language and whitespace fixups
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx>
---
Documentation/sound/alsa-configuration.rst | 5 ++--
Documentation/sound/cards/audigy-mixer.rst | 27 ++++++++++++---------
Documentation/sound/cards/sb-live-mixer.rst | 17 +++++++------
3 files changed, 28 insertions(+), 21 deletions(-)
diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sound/alsa-configuration.rst
index 5f31fa5e2435..af71c68f1e4e 100644
--- a/Documentation/sound/alsa-configuration.rst
+++ b/Documentation/sound/alsa-configuration.rst
@@ -723,9 +723,10 @@ Module for EMU10K1/EMU10k2 based PCI sound cards.
* Sound Blaster Live!
* Sound Blaster PCI 512
-* Emu APS (partially supported)
* Sound Blaster Audigy
-
+* E-MU APS (partially supported)
+* E-MU DAS
+
extin
bitmap of available external inputs for FX8010 (see below)
extout
diff --git a/Documentation/sound/cards/audigy-mixer.rst b/Documentation/sound/cards/audigy-mixer.rst
index c506f8d16f2e..aa176451d5b5 100644
--- a/Documentation/sound/cards/audigy-mixer.rst
+++ b/Documentation/sound/cards/audigy-mixer.rst
@@ -19,30 +19,30 @@ Digital mixer controls
These controls are built using the DSP instructions. They offer extended
functionality. Only the default built-in code in the ALSA driver is described
here. Note that the controls work as attenuators: the maximum value is the
-neutral position leaving the signal unchanged. Note that if the same destination
-is mentioned in multiple controls, the signal is accumulated and can be wrapped
-(set to maximal or minimal value without checking of overflow).
+neutral position leaving the signal unchanged. Note that if the same destination
+is mentioned in multiple controls, the signal is accumulated and can be clipped
+(set to maximal or minimal value without checking for overflow).
Explanation of used abbreviations:
DAC
digital to analog converter
ADC
analog to digital converter
I2S
one-way three wire serial bus for digital sound by Philips Semiconductors
- (this standard is used for connecting standalone DAC and ADC converters)
+ (this standard is used for connecting standalone D/A and A/D converters)
LFE
- low frequency effects (subwoofer signal)
+ low frequency effects (used as subwoofer signal)
AC97
- a chip containing an analog mixer, DAC and ADC converters
+ a chip containing an analog mixer, D/A and A/D 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.
+ 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
----------------------------------------
@@ -218,8 +218,8 @@ LFE outputs.
name='IEC958 Optical Raw Playback Switch',index=0
-------------------------------------------------
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
-PCM samples are taken.
+output are taken only from the raw iec958 ALSA PCM device (which uses
+accumulators 20 and 21 for left and right PCM by default).
PCM stream related controls
@@ -237,8 +237,8 @@ as follows:
name='EMU10K1 PCM Send Routing',index 0-31
------------------------------------------
-This control specifies the destination - FX-bus accumulators. There 24
-values with this mapping:
+This control specifies the destination - FX-bus accumulators. There are 24
+values in this mapping:
* 0 - mono, A destination (FX-bus 0-63), default 0
* 1 - mono, B destination (FX-bus 0-63), default 1
@@ -306,6 +306,9 @@ MANUALS/PATENTS
ftp://opensource.creative.com/pub/doc
-------------------------------------
+Note that the site is defunct, but the documents are available
+from various other locations.
+
LM4545.pdf
AC97 Codec
diff --git a/Documentation/sound/cards/sb-live-mixer.rst b/Documentation/sound/cards/sb-live-mixer.rst
index 357fcd619d39..819886634400 100644
--- a/Documentation/sound/cards/sb-live-mixer.rst
+++ b/Documentation/sound/cards/sb-live-mixer.rst
@@ -15,7 +15,7 @@ The ALSA driver programs this portion of chip by default code
IEC958 (S/PDIF) raw PCM
=======================
-This PCM device (it's the 4th PCM device (index 3!) and first subdevice
+This PCM device (it's the 3rd PCM device (index 2!) and first subdevice
(index 0) for a given card) allows to forward 48kHz, stereo, 16-bit
little endian streams without any modifications to the digital output
(coaxial or optical). The universal interface allows the creation of up
@@ -33,24 +33,24 @@ Digital mixer controls
These controls are built using the DSP instructions. They offer extended
functionality. Only the default built-in code in the ALSA driver is described
here. Note that the controls work as attenuators: the maximum value is the
-neutral position leaving the signal unchanged. Note that if the same destination
-is mentioned in multiple controls, the signal is accumulated and can be wrapped
-(set to maximal or minimal value without checking of overflow).
+neutral position leaving the signal unchanged. Note that if the same destination
+is mentioned in multiple controls, the signal is accumulated and can be clipped
+(set to maximal or minimal value without checking for overflow).
Explanation of used abbreviations:
DAC
digital to analog converter
ADC
analog to digital converter
I2S
one-way three wire serial bus for digital sound by Philips Semiconductors
- (this standard is used for connecting standalone DAC and ADC converters)
+ (this standard is used for connecting standalone D/A and A/D converters)
LFE
- low frequency effects (subwoofer signal)
+ low frequency effects (used as subwoofer signal)
AC97
- a chip containing an analog mixer, DAC and ADC converters
+ a chip containing an analog mixer, D/A and A/D converters
IEC958
S/PDIF
FX-bus
@@ -313,6 +313,9 @@ MANUALS/PATENTS
ftp://opensource.creative.com/pub/doc
-------------------------------------
+Note that the site is defunct, but the documents are available
+from various other locations.
+
LM4545.pdf
AC97 Codec
m2049.pdf
--
2.40.0.152.g15d061e6df
