gramps
5889d71db6
Unit 9, the one that matters most for this creator. MASTER STRIP (top, nearest the preview): - one ladder fed by the MEASURED mix — `AudioMixer` now measures the buffer the encoder receives (`MasterLevel`, `MasterImbalanceDb`), so the master cannot show a source instead of the output - `-12.4 dB` readout, and ONE L/R flag that appears above a 6 dB gap instead of a second ladder - bitrate / FPS / dropped / duration from the existing health poll MONO OUTPUT: - `AudioFold.ToMono` averages each stereo pair into both channels, applied after the limiter and the sync delay, so the stream AND the recording get what was folded - `MonoOutput` is persisted (`Audio.MonoOutput`) and restored at startup: an accessibility switch that resets each session is an accessibility failure - one click in the strip, remembered forever Guard: AudioFoldTests (hard-left reaches the right at half amplitude, hard-right — the inaudible case — reaches the left, centred material keeps its level, mono buffers untouched) and MasterStripTests (the strip binds the measured mix + the switch, the store round-trips it, and the fold is the tested helper rather than new arithmetic). 33 audio tests green.
36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
using Xunit;
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using ytLive.Helpers;
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namespace ytLive.Tests;
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/// <summary>The mono output exists because single-sided audio is inaudible to this creator, not
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/// merely unbalanced. The fold has to move content to BOTH sides — a "fold" that keeps a channel
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/// empty would leave the exact problem in place — and it must not touch mono buffers.</summary>
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public class AudioFoldTests
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{
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[Fact]
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public void Folding_to_mono_puts_a_one_sided_signal_on_both_sides()
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{
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// Hard LEFT content becomes audible on the right at half amplitude.
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var left = new[] { 0.5f, 0f, 0.5f, 0f };
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AudioFold.ToMono(left, 2);
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Assert.Equal(new[] { 0.25f, 0.25f, 0.25f, 0.25f }, left);
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// Hard RIGHT — the inaudible case — becomes audible on the left.
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var right = new[] { 0f, 0.6f };
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AudioFold.ToMono(right, 2);
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Assert.Equal(0.3f, right[0], 4);
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Assert.Equal(0.3f, right[1], 4);
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// Centred material keeps its level (the mic case): no quietening.
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var centred = new[] { 0.4f, 0.4f };
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AudioFold.ToMono(centred, 2);
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Assert.Equal(0.4f, centred[0], 4);
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// Mono buffers are untouched — folding is about pairs.
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var mono = new[] { 0.7f, 0.2f };
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AudioFold.ToMono(mono, 1);
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Assert.Equal(new[] { 0.7f, 0.2f }, mono);
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}
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}
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