smmixer(8)

1SMMIXER(8)                 Linux Programmer's Manual                SMMIXER(8)
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NAME

6       smmixer - get/set Linux soundcard packet radio modem driver mixer
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SYNOPSIS

9       smmixer [-i device] [ params ]
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DESCRIPTION

13       smmixer displays and/or sets the input source and input and output lev‐
14       els of a soundcard modem port.
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OPTIONS

18       smmixer accepts the following option:
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21       -i     The device argument specifies the soundcard modem  device  which
22              should  be configured or interrogated.  It will usually have the
23              following form: sm[0-3].
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PARAMETERS

27       The AD1848 (WSS) mixer accepts the following parameters:
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29       ol=val sets the level of the left output to the specified value.  Legal
30              values are from -100..0dB.
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32       or=val sets the level of the right output to the specified value. Legal
33              values are from -100..0dB.
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35       o=val  sets the level of both outputs to  the  specified  value.  Legal
36              values are from -100..0dB.
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38       il=val sets  the  level of the left input to the specified value. Legal
39              values are from 0..43dB.
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41       ir=val sets the level of the right input to the specified value.  Legal
42              values are from 0..43dB.
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44       i=val  sets the level of both inputs to the specified value. Legal val‐
45              ues are from 0..43dB.
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47       sl=val sets the source of the left input to the specified value.  Legal
48              values are line, aux1, mic or dac.
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50       sr=val sets the source of the right input to the specified value. Legal
51              values are line, aux1, mic or dac.
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53       s=val  sets the source of both inputs to  the  specified  value.  Legal
54              values are line, aux1, mic or dac.
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56       The CT1335 (SB2.x) mixer accepts the following parameter:
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58       o=val  sets  the  output level to the specified value. Legal values are
59              from -46..0dB.
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61       The CT1345 (SBPro) mixer accepts the following parameters:
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63       ol=val sets the level of the left output to the specified value.  Legal
64              values are from -46..0dB.
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66       or=val sets the level of the right output to the specified value. Legal
67              values are from -46..0dB.
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69       o=val  sets the level of both outputs to  the  specified  value.  Legal
70              values are from -46..0dB.
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72       s=val  sets  the  input source to the specified value. Legal values are
73              mic, cd or line.
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75       The CT1745 (SB16, SB32 AWE) mixer accepts the following parameters:
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77       ol=val sets the level of the left output to the specified value.  Legal
78              values are from -62..18dB.
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80       or=val sets the level of the right output to the specified value. Legal
81              values are from -62..18dB.
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83       o=val  sets the level of both outputs to  the  specified  value.  Legal
84              values are from -62..18dB.
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86       il=val sets  the  level of the left input to the specified value. Legal
87              values are from -62..18dB.
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89       ir=val sets the level of the right input to the specified value.  Legal
90              values are from -62..18dB.
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92       i=val  sets the level of both inputs to the specified value. Legal val‐
93              ues are from -62..18dB.
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95       s=val  enables the specified value as a source. Legal values are  line,
96              line.l, line.r, midi, midi.l, midi.r, cd, cd.l, cd.r or mic.
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CONSIDERATIONS

100       It  is important that the audio levels of your radio match those of the
101       soundcard. To help achieve this, use the smdiag utility.
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103       This utility can only be used after the interface is started  up,  i.e.
104       after ifconfig sm? up.
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106       The sound driver and the soundcard modem driver are mutually exclusive,
107       i.e. they cannot both access the same soundcard at the same time.  Even
108       worse,  the  sound  driver  reserves  the  soundcard as soon as it gets
109       loaded. The souncard modem driver however reserves the card  only  when
110       the interface is started, i.e. during ifconfig if up.
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112       9600  baud  may not currently work on SoundBlaster cards with DSP revi‐
113       sion 4.x, i.e.  SB16 and SB32 AWE. This is because they seem to not  be
114       fully backwards compatible.
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AUTHOR

122       smmixer was written by Thomas Sailer (sailer@ife.ee.ethz.ch).
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126Smmixer 0.1                     1 October 1996                      SMMIXER(8)