1 ==============================================
2 E-MU Digital Audio System mixer / default DSP
3 ==============================================
4
5 This document covers the E-MU 0404/1010/1212/1
6 cards.
7
8 These cards use regular EMU10K2 (SoundBlaster
9 alternative front-end geared towards semi-prof
10
11 This document is based on audigy-mixer.rst.
12
13
14 Hardware compatibility
15 ======================
16
17 The EMU10K2 chips have a very short capture FI
18 unreliable if the card's PCI bus requests are
19 appropriate priority.
20 This is the case on more modern motherboards,
21 secondary peripheral, rather than the actual a
22 In particular, I got recording glitches during
23 Intel DP55 board (memory controller in the CPU
24 Intel DP45 board (memory controller in the nor
25
26 The PCI Express variants of these cards (which
27 but are otherwise identical) may be less probl
28
29
30 Driver capabilities
31 ===================
32
33 This driver supports only 16-bit 44.1/48 kHz o
34 device (see emu10k1-jack.rst) additionally sup
35
36 A patchset to enhance the driver is available
37 <https://github.com/ossilator/linux/tree/ossis
38 Its multi-channel device supports 24-bit for b
39 and also supports full 88.2/96/176.4/192 kHz o
40 It is not going to be upstreamed due to a fund
41 what constitutes a good user experience.
42
43
44 Digital mixer controls
45 ======================
46
47 Note that the controls work as attenuators: th
48 position leaving the signal unchanged. Note th
49 mentioned in multiple controls, the signal is
50 (set to maximal or minimal value without check
51
52 Explanation of used abbreviations:
53
54 DAC
55 digital to analog converter
56 ADC
57 analog to digital converter
58 LFE
59 low frequency effects (used as subwoof
60 IEC958
61 S/PDIF
62 FX-bus
63 the EMU10K2 chip has an effect bus con
64 Each of the synthesizer voices can fee
65 and the DSP microcontroller can operat
66
67 name='Clock Source',index=0
68 ---------------------------
69 This control allows switching the word clock b
70 44.1 or 48 kHz, or a number of external source
71
72 Note: the sources for the 1616 CardBus card ar
73 findings.
74
75 name='Clock Fallback',index=0
76 -----------------------------
77 This control determines the internal clock whi
78 the selected external clock source is/becomes
79
80 name='DAC1 0202 14dB PAD',index=0, etc.
81 ---------------------------------------
82 Output attenuation controls. Not available on
83
84 name='ADC1 14dB PAD 0202',index=0, etc.
85 ---------------------------------------
86 Input attenuation controls. Not available on 0
87
88 name='Optical Output Mode',index=0
89 ----------------------------------
90 Switches the TOSLINK output port between S/PDI
91 Not available on 0404 cards (fixed to S/PDIF).
92
93 name='Optical Input Mode',index=0
94 ---------------------------------
95 Switches the TOSLINK input port between S/PDIF
96 Not available on 0404 cards (fixed to S/PDIF).
97
98 name='PCM Front Playback Volume',index=0
99 ----------------------------------------
100 This control is used to attenuate samples from
101 accumulators. ALSA uses accumulators 8 and 9 f
102 samples for 5.1 playback. The result samples a
103 playback channels.
104
105 name='PCM Surround Playback Volume',index=0
106 -------------------------------------------
107 This control is used to attenuate samples from
108 accumulators. ALSA uses accumulators 2 and 3 f
109 samples for 5.1 playback. The result samples a
110 playback channels.
111
112 name='PCM Side Playback Volume',index=0
113 ---------------------------------------
114 This control is used to attenuate samples from
115 accumulators. ALSA uses accumulators 14 and 15
116 samples for 7.1 playback. The result samples a
117 playback channels.
118
119 name='PCM Center Playback Volume',index=0
120 -----------------------------------------
121 This control is used to attenuate samples from
122 ALSA uses accumulator 6 for center PCM samples
123 are forwarded to the DSP 4 playback channel.
124
125 name='PCM LFE Playback Volume',index=0
126 --------------------------------------
127 This control is used to attenuate samples from
128 ALSA uses accumulator 7 for LFE PCM samples fo
129 are forwarded to the DSP 5 playback channel.
130
131 name='PCM Playback Volume',index=0
132 ----------------------------------
133 This control is used to attenuate samples from
134 accumulators. ALSA uses accumulators 0 and 1 f
135 stereo playback. The result samples are forwar
136
137 name='PCM Capture Volume',index=0
138 ---------------------------------
139 This control is used to attenuate samples from
140 accumulators. ALSA uses accumulators 0 and 1 f
141 The result is forwarded to the standard captur
142
143 name='Music Playback Volume',index=0
144 ------------------------------------
145 This control is used to attenuate samples from
146 accumulators. ALSA uses accumulators 4 and 5 f
147 The result samples are forwarded to the virtua
148
149 name='Music Capture Volume',index=0
150 -----------------------------------
151 These controls are used to attenuate samples f
152 accumulator. ALSA uses accumulators 4 and 5 fo
153 The result is forwarded to the standard captur
154
155 name='Front Playback Volume',index=0
156 ------------------------------------
157 This control is used to attenuate samples from
158 The result samples are forwarded to the DSP 0
159
160 name='Surround Playback Volume',index=0
161 ---------------------------------------
162 This control is used to attenuate samples from
163 The result samples are forwarded to the DSP 2
164
165 name='Side Playback Volume',index=0
166 -----------------------------------
167 This control is used to attenuate samples from
168 The result samples are forwarded to the DSP 6
169
170 name='Center Playback Volume',index=0
171 -------------------------------------
172 This control is used to attenuate samples from
173 The result samples are forwarded to the DSP 4
174
175 name='LFE Playback Volume',index=0
176 ----------------------------------
177 This control is used to attenuate samples from
178 The result samples are forwarded to the DSP 5
179
180 name='Tone Control - Switch',index=0
181 ------------------------------------
182 This control turns the tone control on or off.
183 the DSP playback channels are affected.
184
185 name='Tone Control - Bass',index=0
186 ----------------------------------
187 This control sets the bass intensity. There is
188 When the tone control code is activated, the s
189 The closest value to pure signal is 20.
190
191 name='Tone Control - Treble',index=0
192 ------------------------------------
193 This control sets the treble intensity. There
194 When the tone control code is activated, the s
195 The closest value to pure signal is 20.
196
197 name='Master Playback Volume',index=0
198 -------------------------------------
199 This control is used to attenuate samples for
200
201 name='EMU Capture Volume',index=0
202 ----------------------------------
203 This control is used to attenuate samples from
204 The result is forwarded to the standard captur
205
206 name='DAC Left',index=0, etc.
207 -----------------------------
208 Select the source for the given physical audio
209 inputs, playback channels (DSP xx, specified a
210
211 name='DSP x',index=0
212 --------------------
213 Select the source for the given capture channe
214 digit). Same options as for the physical audio
215
216
217 PCM stream related controls
218 ===========================
219
220 These controls are described in audigy-mixer.r
221
222
223 MANUALS/PATENTS
224 ===============
225
226 See sb-live-mixer.rst.
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