MarcelineVPQandClaude Opus 4.8
84393c00e8
Preserves in-progress work that had been sitting uncommitted in the working tree (predates this session) so it is protected in git history. This is NOT a verified/shipped fix — it is parked. Audio path is unverified on hardware and still carries debug instrumentation. - src/audio.cpp: drop the 512->480 resampler and retime the 0x36 frame to a true 10ms/100Hz grid (SAMPLE_SIZE 64->60, 480-sample buffer) to chase the ~45kHz-vs-48kHz speaker underrun theory behind the crackle; dynamic speaker sub-report offset; debug printf + Opus-frame-dump instrumentation. - src/config.cpp: default audio_buffer_length 64->16; auto_haptics_enable default 1 (Fallback) -> 0 (Off). - src/oled.cpp: chunked non-blocking SPI flush (issue #7 OLED-stall angle) and a battery-% midpoint display tweak. - scripts/: audio debug helpers (opus-dump decode, pi audio test, sine ch1/2). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
#!/usr/bin/env python3
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"""Send a 440 Hz sine wave on channels 1+2 only (speaker), silence on 3+4 (haptic).
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Usage: python3 scripts/sine_ch12.py [seconds]
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"""
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import subprocess, struct, math, sys, re
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RATE = 48000
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FREQ = 440
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DURATION = int(sys.argv[1]) if len(sys.argv) > 1 else 5
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CHANNELS = 4
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SAMPLES = RATE * DURATION
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# Generate 4-channel S16_LE: sine on ch1+ch2, silence on ch3+ch4
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data = bytearray()
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for i in range(SAMPLES):
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val = int(6000 * math.sin(2 * math.pi * FREQ * i / RATE)) # ~-15 dBFS (was 32767 / 0 dBFS) — clipping test
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s = struct.pack('<h', val)
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data += s + s + b'\x00\x00' + b'\x00\x00' # L, R, hapL=0, hapR=0
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# Auto-detect the dongle's ALSA card — it enumerates as "DualSense Wireless
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# Controller", and the card number shifts across reboots, so never hardcode it.
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def find_dualsense_card():
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out = subprocess.check_output(['aplay', '-l'], text=True)
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for line in out.splitlines():
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m = re.match(r'card (\d+):', line)
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if m and 'DualSense' in line:
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return int(m.group(1))
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return None
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card = find_dualsense_card()
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if card is None:
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print("DualSense dongle not found in `aplay -l` — paired and enumerated?", file=sys.stderr)
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sys.exit(1)
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device = f'hw:{card},0'
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print(f"Playing to {device} (DualSense dongle)")
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proc = subprocess.Popen(
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['aplay', '-D', device, '-f', 'S16_LE', '-c', '4', '-r', '48000', '-'],
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stdin=subprocess.PIPE
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)
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proc.stdin.write(data)
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proc.stdin.close()
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proc.wait()
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print(f"Played {DURATION}s of {FREQ} Hz sine on ch1+ch2 (speaker only)")
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