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microphone recording got lower or higher tune than standard


drfjx
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Hello, you all!


I am facing a strange problem, our box is arm-based runnig ubuntu with alsa and pulseaudio, the following test worked fine:


arecord -f S16_LE -D plughw:0,0 -r 8000 | aplay -f S16_LE -D plughw:0,0 -r 8000

arecord -f S16_LE -D plughw:0,0 -r 16000 | aplay -f S16_LE -D plughw:0,0 -r 16000

an so on up to 32k,44k,48k.


when using Mumble's Audio Tuninf Wizard to test speaker, I could only hear my voice with very lower tune than my normal, and when I use Linphone do the same test I heard my voice with very higher tune than standard.


in Mumble context I used the following setting:


Audio Tuninf Wizard:

input Device

This is the device your microphone is connectedto.

System:

ALSA

Device:

[hw:CARD=AMLCS42L52,DEV=] AML-CS42L52, Direct hardware device without any conversions

or

[hw:CARD=AMLCS42L52,DEV=] AML-CS42L52, Direct hardware device with all software conversions


if I select any Pulse options I could hear nothing except choppy sounds.


I am puzzled if the problem is in kernel driver or alsa or pulseaudio? any advice appreciated.


I'd like post the ouput informations coming from when Audio Tuninf Wizard start and, ones when I selected the first option above in Audio Tuninf Wizard:


#run mumble in a terminal:


administrator@sdn:~$ mumble

QGtkStyle was unable to detect the current GTK+ theme.

PulseAudio: Connection failure: Connection refused

G15LCDEngineUnix: Unable to connect to G15Daemon.

CELT bitstream 8000000b from libcelt0.so.0.0.0

Locale is en_US

TextToSpeech: Failed to contact speech dispatcher.

Database SQLite: "3.7.9"

WARNING The program 'mumble' uses the Apple Bonjour compatibility layer of Avahi.

WARNING Please fix your application to use the native API of Avahi!

WARNING For more information see http://0pointer.de/avahi-compat?s=libdns_sd&e=mumble

Overlay: Listening on "/home/administrator/.MumbleOverlayPipe"

GlobalShortcutX: Unable to open any keyboard input devices under /dev/input, falling back to XInput

GlobalShortcutX: Using XInput 2.2

GlobalShortcutX: XInput 4:Virtual core XTEST pointer

GlobalShortcutX: XInput 5:Virtual core XTEST keyboard

GlobalShortcutX: XInput 9:key_input

GlobalShortcutX: XInput 10:aml_keypad

GlobalShortcutX: XInput 6:Logitech USB Optical Mouse

GlobalShortcutX: XInput 7:Logitech USB Keyboard

GlobalShortcutX: XInput 8:Logitech USB Keyboard

No systemtrayicon available

AudioInput: 40000 bits/s, 48000 hz, 480 sample CELT

ALSAAudioOutput: Initialized

ALSAAudioOutput: ALSA reports 10000 output channels. Clamping to 2.

ALSAAudioOutput: Actual buffer 48000 hz, 2 channel 3072 samples [512 per period]

ALSAAudioOutput: Initializing 2 channel, 48000 hz mixer

AudioOutput: Initialized 2 channel 48000 hz mixer

ALSAAudioInput: Initing audiocapture default.

ALSAAudioInput: Actual buffer 48000 hz, 1 channel 4096 samples [512 per period]

AudioInput: Initialized mixer for 1 channel 48000 hz mic and 0 channel 48000 hz echo

warning: The VAD has been replaced by a hack pending a complete rewrite


#when the first option is selected:


ALSAAudioInput: Releasing ALSA Mic.

ALSAAudioOutput: Destroyed

AudioInput: 40000 bits/s, 48000 hz, 480 sample CELT

ALSAAudioOutput: Initialized

ALSAAudioInput: Initing audiocapture default.

ALSAAudioInput: Actual buffer 48000 hz, 1 channel 4096 samples [512 per period]

AudioInput: Initialized mixer for 1 channel 48000 hz mic and 0 channel 48000 hz echo

ALSAAudioInput: Releasing ALSA Mic.

ALSAAudioOutput: ALSA reports 10000 output channels. Clamping to 2.

ALSAAudioOutput: Actual buffer 48000 hz, 2 channel 3072 samples [512 per period]

ALSAAudioOutput: Initializing 2 channel, 48000 hz mixer

AudioOutput: Initialized 2 channel 48000 hz mixer

ALSAAudioOutput: Destroyed

AudioInput: 40000 bits/s, 48000 hz, 480 sample CELT

ALSAAudioOutput: Initialized

ALSAAudioInput: Initing audiocapture default.

ALSAAudioInput: Actual buffer 48000 hz, 1 channel 4096 samples [512 per period]

AudioInput: Initialized mixer for 1 channel 48000 hz mic and 0 channel 48000 hz echo

ALSAAudioOutput: ALSA reports 10000 output channels. Clamping to 2.

ALSAAudioOutput: Actual buffer 48000 hz, 2 channel 3072 samples [512 per period]

ALSAAudioOutput: Initializing 2 channel, 48000 hz mixer

AudioOutput: Initialized 2 channel 48000 hz mixer

warning: The VAD has been replaced by a hack pending a complete rewrite

ALSAAudioInput: Releasing ALSA Mic.

AudioInput: 40000 bits/s, 48000 hz, 480 sample CELT

ALSAAudioInput: Initing audiocapture hw:CARD=AMLCS42L52,DEV=0.

ALSAAudioInput: Actual buffer 48000 hz, 1 channel 4096 samples [512 per period]

AudioInput: Initialized mixer for 1 channel 48000 hz mic and 0 channel 48000 hz echo

warning: The VAD has been replaced by a hack pending a complete rewrite


thanks


Liuwf 2013 Dec. 26

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