2025-10-09 06:43:26 -07:00
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#!/bin/bash
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#
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# Author : Gaston Gonzalez
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# Date : 9 October 2025
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# Purpose : Audio settings specific to the Lab599 TX-500MP
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#
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# Preconditions
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# 1. Supported audio interface is connected and properly detected
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#
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# Postconditions
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# 1. ALSA settings set on ET audio device
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usage() {
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echo "usage: $(basename $0) <ET audio card> <ET device name>"
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}
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if [[ $# -ne 2 ]]; then
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usage
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exit 1
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fi
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AUDIO_CARD=$1
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ET_DEVICE_NAME=$2
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# Unmute Speaker and set the volume to 81. Adjust if the remote station
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2025-10-13 11:24:23 -07:00
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# can't decode you or if there is no output power on TX.
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2025-10-09 06:43:26 -07:00
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amixer -q -c ${AUDIO_CARD} sset Speaker Playback Switch 92% unmute
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# Unmute Mic
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amixer -q -c ${AUDIO_CARD} sset Mic Playback Switch 52% unmute
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# Set "L/R Capture" to 19. Adjust if you can't decode received audio.
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amixer -q -c ${AUDIO_CARD} sset Mic Capture Switch 31% unmute
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# Disable Auto Gain Control
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amixer -q -c ${AUDIO_CARD} sset 'Auto Gain Control' mute
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et-log "Applied amixer settings for audio card ${AUDIO_CARD} on device ${ET_DEVICE_NAME}"
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