Monorepo for Aesthetic.Computer
aesthetic.computer
native: reduce default software gain to 150% (was 200%)
At 200%, user reported "cranked way up" with tinny/distorted quality
like a PC beeper. soft_clip compressing hard above -12 dBFS on tiny
Chromebook speakers sounds harsh. 150% (2.25× linear) is audible at
normal levels without pushing into compression. Volume keys still
reach 400% for quieter hardware.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
+7
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fedac/native/src/audio.c
+7
-6
fedac/native/src/audio.c
···
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}
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// Read initial system volume. On SOF cards there's no Master mixer
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-
// and read_system_volume_card returns -1 — default to 200% so the
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// speaker amp (which has -6dB headroom in the DSP pipeline) has
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// enough gain to be audible at normal listening levels.
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// and read_system_volume_card returns -1 — default to 150% (2.25×
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// linear) which is loud enough on tiny Chromebook speakers without
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// pushing soft_clip into audible distortion. Volume keys still go
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// up to 400% for very quiet hardware.
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int hw_vol = read_system_volume_card(card_idx);
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audio->system_volume = (hw_vol >= 0) ? hw_vol : 200;
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+
audio->system_volume = (hw_vol >= 0) ? hw_vol : 150;
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fprintf(stderr, "[audio] System volume: %d%% (hw=%d)\n",
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audio->system_volume, hw_vol);
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···
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audio->system_volume = hw_vol;
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} else {
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// No Master mixer — software gain mode (0..400%).
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// 200% is the default boot volume on SOF cards; allow
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// 150% is the default boot volume on SOF cards; allow
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// keys to step up to 400 (16× linear) for quiet speakers.
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int sv = audio->system_volume;
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if (sv < 0) sv = 200;
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if (sv < 0) sv = 150;
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int step = 10;
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if (delta > 0) sv = (sv + step > 400) ? 400 : sv + step;
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else if (delta < 0) sv = (sv - step < 0) ? 0 : sv - step;