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Configure demo_audio_loopback.py to record for a fixed 10-second duration to eliminate button-release checking from loop

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Adolfo Reyna
2026-06-17 23:15:22 -04:00
parent 4ff86ab415
commit 5968b4934d
1 changed files with 14 additions and 15 deletions
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demo_audio_loopback.py
+14 -15
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@@ -79,14 +79,14 @@ def main():
if board_config.BOARD_TYPE == 'WAVESHARE_RLCD': if board_config.BOARD_TYPE == 'WAVESHARE_RLCD':
display.text("RLCD Audio Loopback Test", 10, 10, 1) display.text("RLCD Audio Loopback Test", 10, 10, 1)
display.line(10, 20, 390, 20, 1) display.line(10, 20, 390, 20, 1)
display.text("1. Press & HOLD KEY button to record", 15, 60, 1) display.text("1. Press KEY button to record 10s", 15, 60, 1)
display.text("2. Release key to play back", 15, 80, 1) display.text("2. Playback will start automatically", 15, 80, 1)
display.text("Ready...", 15, 120, 1) display.text("Ready...", 15, 120, 1)
else: else:
display.text("Touch Audio Loopback Test", 10, 10, 1) display.text("Touch Audio Loopback Test", 10, 10, 1)
display.line(10, 20, 310, 20, 1) display.line(10, 20, 310, 20, 1)
display.text("1. Press & HOLD screen/KEY to record", 10, 50, 1) display.text("1. Press screen/KEY to record 10s", 10, 50, 1)
display.text("2. Release to play back", 10, 70, 1) display.text("2. Playback starts automatically", 10, 70, 1)
display.text("Ready...", 10, 100, 1) display.text("Ready...", 10, 100, 1)
display.show() display.show()
@@ -120,13 +120,13 @@ def main():
if board_config.BOARD_TYPE == 'WAVESHARE_RLCD': if board_config.BOARD_TYPE == 'WAVESHARE_RLCD':
display.text("RLCD Audio Loopback Test", 10, 10, 1) display.text("RLCD Audio Loopback Test", 10, 10, 1)
display.line(10, 20, 390, 20, 1) display.line(10, 20, 390, 20, 1)
display.text("RECORDING NOW!", 15, 80, 1) display.text("RECORDING: 10 seconds...", 15, 80, 1)
display.text("Keep holding key...", 15, 100, 1) display.text("Speak into microphone!", 15, 100, 1)
else: else:
display.text("Touch Audio Loopback Test", 10, 10, 1) display.text("Touch Audio Loopback Test", 10, 10, 1)
display.line(10, 20, 310, 20, 1) display.line(10, 20, 310, 20, 1)
display.text("RECORDING NOW!", 10, 60, 1) display.text("RECORDING: 10 seconds...", 10, 60, 1)
display.text("Keep holding trigger...", 10, 80, 1) display.text("Speak now!", 10, 80, 1)
display.show() display.show()
# We record as long as the button is pressed (or up to 10 seconds max) # We record as long as the button is pressed (or up to 10 seconds max)
@@ -168,14 +168,13 @@ def main():
pass pass
# Record loop # Record loop
buffer = bytearray(2048) buffer = bytearray(1024)
total_bytes = 0 total_bytes = 0
start_time = time.ticks_ms() start_rec_time = time.time()
max_duration_ms = 10000 # 10 seconds limit
try: try:
with open(filename, 'wb') as f: with open(filename, 'wb') as f:
while is_talk_trigger_active() and time.ticks_diff(time.ticks_ms(), start_time) < max_duration_ms: while (time.time() - start_rec_time) < 10:
bytes_read = i2s_rx.readinto(buffer) bytes_read = i2s_rx.readinto(buffer)
if bytes_read > 0: if bytes_read > 0:
f.write(buffer[:bytes_read]) f.write(buffer[:bytes_read])
@@ -187,10 +186,10 @@ def main():
if mclk_pwm: if mclk_pwm:
mclk_pwm.deinit() mclk_pwm.deinit()
print(f"Trigger released! Recorded {total_bytes} bytes to '{filename}'.") print(f"Recorded {total_bytes} bytes to '{filename}'.")
# Debounce release # Wait for release of key/trigger to debounce
time.sleep_ms(150) time.sleep_ms(200)
# 4. Playback # 4. Playback
if display: if display: