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fix(utils): handle missing/unresponsive TTS on Linux (#4199)

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* fix: handle missing/unresponsive TTS on Linux

spd-say may be installed but hang indefinitely when speech-dispatcher
is not running. Add a 5s timeout and catch TimeoutExpired alongside
FileNotFoundError so recording continues without audio.

* chore(utils): add log warning for say

---------

Co-authored-by: Jiwen Cai <jiwenc@nvidia.com>
This commit is contained in:
Steven Palma
2026-07-28 16:45:32 +02:00
committed by GitHub
parent a05c0833e1
commit 0449aa02f6
1 changed files with 7 additions and 4 deletions
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src/lerobot/utils/utils.py
+4 -1
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@@ -133,10 +133,13 @@ def say(text: str, blocking: bool = False):
else: else:
raise RuntimeError("Unsupported operating system for text-to-speech.") raise RuntimeError("Unsupported operating system for text-to-speech.")
try:
if blocking: if blocking:
subprocess.run(cmd, check=True) subprocess.run(cmd, check=True, timeout=5)
else: else:
subprocess.Popen(cmd, creationflags=subprocess.CREATE_NO_WINDOW if system == "Windows" else 0) subprocess.Popen(cmd, creationflags=subprocess.CREATE_NO_WINDOW if system == "Windows" else 0)
except (FileNotFoundError, subprocess.TimeoutExpired) as e:
logging.warning("Text-to-speech command failed: %s | Error: %s", cmd, e)
def log_say(text: str, play_sounds: bool = True, blocking: bool = False): def log_say(text: str, play_sounds: bool = True, blocking: bool = False):