Sorry, war ein paar Tage etwas Land unter wegen der Endredaktion eines neuen Buches.
1. Vier verschiedene Mikrofone ausprobiert:
- primitives Kristallmikro
- Mikrofon eines Headsets
- Elektretmikrofon mit separater Speisung
- Eingebautes Mikrofon einer WebCam (über separaten USB-Anschluss)
2. Zwei USB-Soundkarten ausprobiert (plus das Mikro der WebCam, das separat digitalisiert)
3. Drei verschiedene Raspberry Pi: Typ A 1, Typ 2 und Typ 3
==> Keine Änderung. Ich kann lokal mit arecord aufnehmen, höre mich auch selbst bei eingeschaltetem Mic Playback - aber es geht nichts über doorpi bzw. linphone raus. Auch die Pegel stimmen laut amixer (Ja, auch bei capture)
Die einzige Sache, die ich bisher nicht geändert habe, ist der SIP-Server - das ist meine gute alte FritzBox 7390.
Es gibt diverse Forenbeiträge, die vom Scheitern an der FritzBox berichten und genau dieses Problem irgendwie verschämt zugeben. Woran liegt es ? Ich tappe immer noch im Dunkeln.
Die einzige Anomalie, die ich bisher gefunden habe, findet sich in der trace-Ausgabe von doorpi_cli:
2016-04-03 17:02:10,229 [INFO] [doorpi.sipphone.from_linphone]
also error in pcm_hw.c:1557 - open '/dev/snd/pcmC1D0c' failed (-2)
2016-04-03 17:02:10,254 [WARNING] [doorpi.sipphone.from_linphone]
./share/sounds/linphone/rings/oldphone.wav does not exist
2016-04-03 17:02:10,279 [WARNING] [doorpi.conf.config_object] could not delete section DoorPi, because it's not empty.
2016-04-03 17:02:10,279 [WARNING] [doorpi.conf.config_object]
found SIP-Phone - dialtone in BACKWARD_COMPATIBILITY_KEYS with DoorPi -
dialtone
2016-04-03 17:02:10,285 [WARNING] [doorpi.conf.config_object] could not delete section DoorPi, because it's not empty.
2016-04-03 17:02:10,286 [WARNING] [doorpi.conf.config_object]
found SIP-Phone - records in BACKWARD_COMPATIBILITY_KEYS with DoorPi -
records
2016-04-03 17:02:10,288 [WARNING] [doorpi.conf.config_object] could not delete section DoorPi, because it's not empty.
2016-04-03 17:02:10,288 [WARNING] [doorpi.conf.config_object]
found SIP-Phone - record_while_dialing in BACKWARD_COMPATIBILITY_KEYS
with DoorPi - record_while_dialing
2016-04-03 17:02:23,611 [WARNING] [doorpi.sipphone.from_linphone]
There is no object pool created in thread [1951708256]. Use
belle_sip_object_pool_push() to create one. Unowned objects not unref'd
will be leaked.
2016-04-03 17:02:23,821 [WARNING] [doorpi.sipphone.from_linphone] alsa_set_params: period:8 Using 8
2016-04-03 17:02:23,821 [WARNING] [doorpi.sipphone.from_linphone] alsa_set_params: periodsize:256 Using 170
2016-04-03 17:02:23,821 [WARNING] [doorpi.sipphone.from_linphone]
alsa_set_params: The period size 256 is not supported by your hardware.
2016-04-03 17:02:23,823 [WARNING] [doorpi.sipphone.from_linphone] alsa_set_params: period:8 Using 8
2016-04-03 17:02:23,823 [WARNING] [doorpi.sipphone.from_linphone] alsa_set_params: periodsize:256 Using 170
2016-04-03 17:02:23,823 [WARNING] [doorpi.sipphone.from_linphone]
alsa_set_params: The period size 256 is not supported by your hardware.
2016-04-03 17:02:28,811 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 0, 34 ms in excess dropped
2016-04-03 17:02:28,812 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 1, 10 ms in excess dropped
2016-04-03 17:02:33,822 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 0, 32 ms in excess dropped
2016-04-03 17:02:33,822 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 1, 20 ms in excess dropped
2016-04-03 17:02:38,879 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 0, 32 ms in excess dropped
2016-04-03 17:02:38,880 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 1, 20 ms in excess dropped
2016-04-03 17:02:43,839 [ERROR] [doorpi.sipphone.from_linphone] *** alsa_can_read fixup, trying to recover
2016-04-03 17:02:43,839 [ERROR] [doorpi.sipphone.from_linphone]
snd_pcm_avail_update: Datenübergabe unterbrochen (broken pipe)
2016-04-03 17:02:43,839 [WARNING] [doorpi.sipphone.from_linphone] MSAudio MSTicker: We are late of 214 miliseconds.
2016-04-03 17:02:43,840 [INFO] [doorpi.sipphone.from_linphone] also error in pcm.c:7843 - overrun occurred
2016-04-03 17:02:43,892 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 0, 30 ms in excess dropped
2016-04-03 17:02:43,892 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 1, 30 ms in excess dropped
2016-04-03 17:02:49,951 [WARNING] [doorpi.sipphone.from_linphone] MSAudio MSTicker: We are late of 1325 miliseconds.
2016-04-03 17:02:49,952 [ERROR] [doorpi.sipphone.from_linphone] *** alsa_can_read fixup, trying to recover
2016-04-03 17:02:49,952 [ERROR] [doorpi.sipphone.from_linphone]
snd_pcm_avail_update: Datenübergabe unterbrochen (broken pipe)
2016-04-03 17:02:49,952 [INFO] [doorpi.sipphone.from_linphone] also error in pcm.c:7843 - overrun occurred
2016-04-03 17:02:49,953 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 0, 238 ms in excess dropped
2016-04-03 17:02:49,953 [WARNING] [doorpi.sipphone.from_linphone] Too much data in channel 1, 210 ms in excess dropped
Wem ist das schon mal begegnet ?
LG
pah