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diff --git a/Documentation/sound/cards/audigy-mixer.rst b/Documentation/sound/cards/audigy-mixer.rst index f3f4640ee2af..7ebaacb6df3d 100644 --- a/Documentation/sound/cards/audigy-mixer.rst +++ b/Documentation/sound/cards/audigy-mixer.rst @@ -17,11 +17,11 @@ Digital mixer controls ====================== 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 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: @@ -32,171 +32,172 @@ 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 ---------------------------------------- -This control is used to attenuate samples for left and right front PCM FX-bus +This control is used to attenuate samples from left and right front PCM FX-bus 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 -slots of the Philips DAC. +samples for 5.1 playback. The result samples are forwarded to the front speakers. 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 from left and right surround PCM FX-bus 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 -slots of the Philips DAC. +samples for 5.1 playback. The result samples are forwarded to the surround (rear) +speakers. + +name='PCM Side Playback Volume',index=0 +--------------------------------------- +This control is used to attenuate samples from left and right side PCM FX-bus +accumulators. ALSA uses accumulators 14 and 15 for left and right side PCM +samples for 7.1 playback. The result samples are forwarded to the side speakers. name='PCM Center Playback Volume',index=0 ----------------------------------------- -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 -is forwarded to the center DAC PCM slot of the Philips DAC. +This control is used to attenuate samples from center PCM FX-bus accumulator. +ALSA uses accumulator 6 for center PCM samples for 5.1 playback. The result +samples are forwarded to the center speaker. name='PCM LFE Playback Volume',index=0 -------------------------------------- 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 -is forwarded to the LFE DAC PCM slot of the Philips DAC. +ALSA uses accumulator 7 for LFE PCM samples for 5.1 playback. The result +samples are forwarded to the subwoofer. 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 from left and right PCM FX-bus 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 -of the Philips DAC. +stereo playback. The result samples are forwarded to the front speakers. name='PCM Capture Volume',index=0 --------------------------------- -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. -The result is forwarded to the ADC capture FIFO (thus to the standard capture -PCM device). +This control is used to attenuate samples from left and right PCM FX-bus +accumulators. ALSA uses accumulators 0 and 1 for left and right PCM samples for +stereo playback. The result is forwarded to the standard capture PCM device. 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 from left and right MIDI FX-bus 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 virtual stereo mixer. name='Music Capture Volume',index=0 ----------------------------------- -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. -The result is forwarded to the ADC capture FIFO (thus to the standard capture -PCM device). +These controls are used to attenuate samples from left and right MIDI FX-bus +accumulator. ALSA uses accumulators 4 and 5 for left and right MIDI samples. +The result is forwarded to the standard capture PCM device. name='Mic Playback Volume',index=0 ---------------------------------- -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 -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. +This control is used to attenuate samples from left and right Mic input of +the AC97 codec. The result samples are forwarded to the virtual stereo mixer. name='Mic Capture Volume',index=0 --------------------------------- -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 -PCM device). +This control is used to attenuate samples from left and right Mic input of +the AC97 codec. The result is forwarded to the standard capture PCM device. + +The original samples are also forwarded to the Mic capture PCM device (device 1; +16bit/8KHz mono) without volume control. name='Audigy CD Playback Volume',index=0 ---------------------------------------- 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 -forwarded to the front DAC PCM slots of the Philips DAC. +forwarded to the virtual stereo mixer. name='Audigy CD Capture Volume',index=0 --------------------------------------- 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 -forwarded to the ADC capture FIFO (thus to the standard capture PCM device). +digital inputs (usually used by a CDROM drive). The result is forwarded +to the standard capture PCM device. name='IEC958 Optical Playback Volume',index=0 --------------------------------------------- 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 -of the Philips DAC. +digital input. The result samples are forwarded to the virtual stereo mixer. name='IEC958 Optical Capture Volume',index=0 -------------------------------------------- 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 -(thus to the standard capture PCM device). +digital inputs. The result is forwarded to the standard capture PCM device. name='Line2 Playback Volume',index=0 ------------------------------------ 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 -DAC PCM slots of the Philips DAC. +inputs (on the AudigyDrive). The result samples are forwarded to the virtual +stereo mixer. name='Line2 Capture Volume',index=1 ----------------------------------- 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 -capture FIFO (thus to the standard capture PCM device). +inputs (on the AudigyDrive). The result is forwarded to the standard capture +PCM device. name='Analog Mix Playback Volume',index=0 ----------------------------------------- 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 -DAC PCM slots of the Philips DAC. This contains mix from analog sources -like CD, Line In, Aux, .... +inputs from Philips ADC. The result samples are forwarded to the virtual +stereo mixer. This contains mix from analog sources like CD, Line In, Aux, .... name='Analog Mix Capture Volume',index=1 ---------------------------------------- This control is used to attenuate samples from left and right I2S ADC -inputs Philips ADC. The result samples are forwarded to the ADC -capture FIFO (thus to the standard capture PCM device). +inputs Philips ADC. The result is forwarded to the standard capture PCM device. name='Aux2 Playback Volume',index=0 ----------------------------------- 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 -DAC PCM slots of the Philips DAC. +inputs (on the AudigyDrive). The result samples are forwarded to the virtual +stereo mixer. name='Aux2 Capture Volume',index=1 ---------------------------------- 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 -capture FIFO (thus to the standard capture PCM device). +inputs (on the AudigyDrive). The result is forwarded to the standard capture +PCM device. name='Front Playback Volume',index=0 ------------------------------------ -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 mix. +This control is used to attenuate samples from the virtual stereo mixer. +The result samples are forwarded to the front speakers. name='Surround Playback Volume',index=0 --------------------------------------- -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 mix. +This control is used to attenuate samples from the virtual stereo mixer. +The result samples are forwarded to the surround (rear) speakers. + +name='Side Playback Volume',index=0 +----------------------------------- +This control is used to attenuate samples from the virtual stereo mixer. +The result samples are forwarded to the side speakers. name='Center Playback Volume',index=0 ------------------------------------- -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 samples from the virtual stereo mixer. +The result samples are forwarded to the center speaker. name='LFE Playback Volume',index=0 ---------------------------------- -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 samples from the virtual stereo mixer. +The result samples are forwarded to the subwoofer. name='Tone Control - Switch',index=0 ------------------------------------ -This control turns the tone control on or off. The samples for front, rear -and center / LFE outputs are affected. +This control turns the tone control on or off. The samples forwarded to +the speaker outputs are affected. name='Tone Control - Bass',index=0 ---------------------------------- @@ -212,14 +213,13 @@ The closest value to pure signal is 20. name='Master Playback Volume',index=0 ------------------------------------- -This control is used to attenuate samples for front, surround, center and -LFE outputs. +This control is used to attenuate samples forwarded to the speaker 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 @@ -227,7 +227,7 @@ PCM stream related controls name='EMU10K1 PCM Volume',index 0-31 ------------------------------------ -Channel volume attenuation in range 0-0xffff. The maximum value (no +Channel volume attenuation in range 0-0x1fffd. The middle value (no attenuation) is default. The channel mapping for three values is as follows: @@ -237,33 +237,33 @@ as follows: name='EMU10K1 PCM Send Routing',index 0-31 ------------------------------------------ -This control specifies the destination - FX-bus accumulators. There 24 -values with this mapping: - -* 0 - mono, A destination (FX-bus 0-63), default 0 -* 1 - mono, B destination (FX-bus 0-63), default 1 -* 2 - mono, C destination (FX-bus 0-63), default 2 -* 3 - mono, D destination (FX-bus 0-63), default 3 -* 4 - mono, E 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 -* 7 - mono, H 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 +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 +* 2 - mono, C destination (FX-bus 0-63), default 2 +* 3 - mono, D destination (FX-bus 0-63), default 3 +* 4 - mono, E destination (FX-bus 0-63), default 4 +* 5 - mono, F destination (FX-bus 0-63), default 5 +* 6 - mono, G destination (FX-bus 0-63), default 6 +* 7 - mono, H destination (FX-bus 0-63), default 7 +* 8 - left, A destination (FX-bus 0-63), default 0 +* 9 - left, B destination (FX-bus 0-63), default 1 * 10 - left, C destination (FX-bus 0-63), default 2 * 11 - left, D destination (FX-bus 0-63), default 3 -* 12 - left, E 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 -* 15 - left, H destination (FX-bus 0-63), default 0 +* 12 - left, E destination (FX-bus 0-63), default 4 +* 13 - left, F destination (FX-bus 0-63), default 5 +* 14 - left, G destination (FX-bus 0-63), default 6 +* 15 - left, H destination (FX-bus 0-63), default 7 * 16 - right, A destination (FX-bus 0-63), default 0 * 17 - right, B destination (FX-bus 0-63), default 1 * 18 - right, C destination (FX-bus 0-63), default 2 * 19 - right, D destination (FX-bus 0-63), default 3 -* 20 - right, E 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 -* 23 - right, H destination (FX-bus 0-63), default 0 +* 20 - right, E destination (FX-bus 0-63), default 4 +* 21 - right, F destination (FX-bus 0-63), default 5 +* 22 - right, G destination (FX-bus 0-63), default 6 +* 23 - right, H destination (FX-bus 0-63), default 7 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). @@ -303,66 +303,4 @@ The channel mapping is following: MANUALS/PATENTS =============== -ftp://opensource.creative.com/pub/doc -------------------------------------- - -LM4545.pdf - AC97 Codec - -m2049.pdf - The EMU10K1 Digital Audio Processor - -hog63.ps - FX8010 - A DSP Chip Architecture for Audio Effects - - -WIPO Patents ------------- - -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 - Execution and Audio Data Sequencing (Jan. 14, 1999) - - -US Patents (https://www.uspto.gov/) ------------------------------------ - -US 5925841 - Digital Sampling Instrument employing cache memory (Jul. 20, 1999) - -US 5928342 - Audio Effects Processor integrated on a single chip - with a multiport memory onto which multiple asynchronous - digital sound samples can be concurrently loaded - (Jul. 27, 1999) - -US 5930158 - Processor with Instruction Set for Audio Effects (Jul. 27, 1999) - -US 6032235 - Memory initialization circuit (Tram) (Feb. 29, 2000) - -US 6138207 - Interpolation looping of audio samples in cache connected to - system bus with prioritization and modification of bus transfers - in accordance with loop ends and minimum block sizes - (Oct. 24, 2000) - -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) +See sb-live-mixer.rst. |