termux-speech-to-text not working on Android 11

Problem

Running termux-speech-to-text on Android 11 fails - it immediately beeps as though no voice was heard. This is also true for termux-dialog with the speech option.

• Termux 0.108 (from f-droid)
• Termux API 0.47 (from f-droid)
• Android 11, 5th March security update
• Microphone permission was granted for Termux API
• Other voice inputs (Chrome, Gboard) working correctly

Output from logcat

03-24 15:07:54.623 25582 25582 W bash    : type=1400 audit(0.0:9522): avc: granted { execute_no_trans } for path="/data/data/com.termux/files/usr/bin/termux-speech-to-text" dev="sda16" ino=41188 scontext=u:r:untrusted_app_27:s0:c3,c257,c512,c768 tcontext=u:object_r:app_data_file:s0:c3,c257,c512,c768 tclass=file app=com.termux.api
03-24 15:07:54.623 25582 25582 W bash    : type=1400 audit(0.0:9523): avc: granted { execute } for name="dash" dev="sda16" ino=37727 scontext=u:r:untrusted_app_27:s0:c3,c257,c512,c768 tcontext=u:object_r:app_data_file:s0:c3,c257,c512,c768 tclass=file app=com.termux.api
03-24 15:07:54.627 25582 25582 W termux-speech-t: type=1400 audit(0.0:9524): avc: granted { execute } for path="/data/data/com.termux/files/usr/bin/dash" dev="sda16" ino=37727 scontext=u:r:untrusted_app_27:s0:c3,c257,c512,c768 tcontext=u:object_r:app_data_file:s0:c3,c257,c512,c768 tclass=file app=com.termux.api
03-24 15:07:54.730 25585 25585 D AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 10259 <<<<<<
03-24 15:07:54.735 25585 25585 E libc    : Access denied finding property "persist.device_config.runtime_native_boot.profilebootclasspath"
03-24 15:07:54.735 25585 25585 E libc    : Access denied finding property "persist.device_config.runtime_native_boot.enable_apex_image"
03-24 15:07:54.735 25585 25585 I AndroidRuntime: Using default boot image
03-24 15:07:54.735 25585 25585 E libc    : Access denied finding property "persist.device_config.runtime_native_boot.disable_lock_profiling"
03-24 15:07:54.735 25585 25585 I AndroidRuntime: Leaving lock profiling enabled
03-24 15:07:54.735 25585 25585 E libc    : Access denied finding property "persist.device_config.runtime_native_boot.enable_generational_cc"
03-24 15:07:54.736 25585 25585 I app_process: Core platform API reporting enabled, enforcing=false
03-24 15:07:54.802 25585 25585 D app_process: Time zone APEX ICU file found: /apex/com.android.tzdata/etc/icu/icu_tzdata.dat
03-24 15:07:54.802 25585 25585 D app_process: I18n APEX ICU file found: /apex/com.android.i18n/etc/icu/icudt66l.dat
03-24 15:07:54.819 25585 25585 W app_process: JNI RegisterNativeMethods: attempt to register 0 native methods for android.media.AudioAttributes
03-24 15:07:54.820 25585 25585 W app_process: Core platform API violation: Ljava/lang/reflect/Field;->accessFlags:I from Landroid/os/Build; using reflection
03-24 15:07:54.823 25585 25585 D AndroidRuntime: Calling main entry com.example.termuxam.Am
03-24 15:07:54.852 25585 25585 D AndroidRuntime: Shutting down VM
03-24 15:07:54.866 23818 25600 E termux-api: onHandleIntent
03-24 15:07:55.073 23818 23818 E termux-api: RecognitionListener#onError(ERROR_CLIENT)
03-24 15:07:55.077 23818 23818 E termux-api: onDestroy
03-24 15:07:59.523 25657 25657 W bash    : type=1400 audit(0.0:9568): avc: granted { execute } for name="logcat" dev="sda16" ino=37767 scontext=u:r:untrusted_app_27:s0:c3,c257,c512,c768 tcontext=u:object_r:app_data_file:s0:c3,c257,c512,c768 tclass=file app=com.termux.api

Start by reproducing termux-speech-to-text on Android 11 and inspect the speech handling around RecognitionListener#onError. Trace the command entry point shown as com.example.termuxam.Am, also comparing termux-dialog's speech option. Done means speech input works instead of immediately beeping and the reported ERROR_CLIENT no longer occurs.