From 6d4fe20acf25a2d0a585dc89286439aaedc7aace Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Fri, 14 Nov 2025 18:34:39 -0600 Subject: fix(recording): Fix phone call audio capture with amix filter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Phone calls were not capturing the remote person's voice due to severe volume loss (44 dB) when using the amerge+pan FFmpeg filter combination. Changes: - Replace amerge+pan with amix filter (provides 44 dB volume improvement) - Increase default system volume from 0.5 to 2.0 for better capture levels - Add diagnostic tool to show active audio playback (C-; r w) - Add integration test with real voice recording - Fix batch mode compatibility for test execution The amix filter properly mixes microphone and system monitor inputs without the massive volume loss that amerge+pan caused. Verified with automated integration test showing perfect transcription of test audio. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude --- tests/fixtures/audio/speaker-output-test.wav | Bin 0 -> 572668 bytes 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 tests/fixtures/audio/speaker-output-test.wav (limited to 'tests/fixtures/audio/speaker-output-test.wav') diff --git a/tests/fixtures/audio/speaker-output-test.wav b/tests/fixtures/audio/speaker-output-test.wav new file mode 100644 index 00000000..008e9710 Binary files /dev/null and b/tests/fixtures/audio/speaker-output-test.wav differ -- cgit v1.2.3