Re: Problem with soundmodem on Eee PC

["David A. Ranch" <dranch@trinnet.net>]

The new version of Ubuntu switched sound systems to PulseAudio:

http://www.ubuntu.com/testing/804rc

I've heard other reports about issues with soundmodem and Pulse.  I
would recommend to try to re-compile soundmodem from sources.  The
current sources version is 0.14.  If that doesn't help, I'd recommend
you back down to less of a bleeding edge distro.  I chose the exact
opposite approach and have everything running on Centos 5.3 but it took
a lot of work.

--David


Christof Bodner wrote:
> Hi Dave,
> 
> I am using the soundmodem provided by the Ubuntu team
> $ dpkg-query -W soundmodem
> soundmodem	0.10-6
> 
> This is the output of soundmodemconfig:
> 
> on_configtree_selection_changed
> selection: cfg: default  chan: Channel 0
> Modulator: afsk Demodulator: afsk
> Modulator: parameter bps value 1200
> Modulator: parameter f0 value 1200
> Modulator: parameter f1 value 2200
> Modulator: parameter diffenc value 1
> Demodulator: parameter bps value 1200
> Demodulator: parameter f0 value 1200
> Demodulator: parameter f1 value 2200
> Demodulator: parameter diffdec value 1
> Minimum sampling rate: 9600
> Audio IO: type alsa
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> Real sampling rate: 9600
> Joining TxThread
> Joining RxThread
> Releasing IO
> Modulator: afsk Demodulator: afsk
> Modulator: parameter bps value 1200
> Modulator: parameter f0 value 1200
> Modulator: parameter f1 value 2200
> Modulator: parameter diffenc value 1
> Demodulator: parameter bps value 1200
> Demodulator: parameter f0 value 1200
> Demodulator: parameter f1 value 2200
> Demodulator: parameter diffdec value 1
> Minimum sampling rate: 9600
> Audio IO: type alsa
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> Real sampling rate: 9600
> delete event
> on_configtree_selection_changed
> Modulator mode: afsk
> Demodulator mode: afsk
> Packet IO mode: MKISS
> Joining TxThread
> Joining RxThread
> Releasing IO
> selection: cfg: -  chan: -
> podex@rosi-atom:~$ sudo soundmodemconfig -v 4
> on_configtree_selection_changed
> selection: cfg: default  chan: Channel 0
> Modulator: afsk Demodulator: afsk
> Modulator: parameter bps value 1200
> Modulator: parameter f0 value 1200
> Modulator: parameter f1 value 2200
> Modulator: parameter diffenc value 1
> Demodulator: parameter bps value 1200
> Demodulator: parameter f0 value 1200
> Demodulator: parameter f1 value 2200
> Demodulator: parameter diffdec value 1
> Minimum sampling rate: 9600
> Audio IO: type alsa
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> Real sampling rate: 9600
> Joining TxThread
> Joining RxThread
> Releasing IO
> Modulator: afsk Demodulator: afsk
> Modulator: parameter bps value 1200
> Modulator: parameter f0 value 1200
> Modulator: parameter f1 value 2200
> Modulator: parameter diffenc value 1
> Demodulator: parameter bps value 1200
> Demodulator: parameter f0 value 1200
> Demodulator: parameter f1 value 2200
> Demodulator: parameter diffdec value 1
> Minimum sampling rate: 9600
> Audio IO: type alsa
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> Real sampling rate: 9600
> Joining TxThread
> Joining RxThread
> Releasing IO
> Modulator: afsk Demodulator: afsk
> Modulator: parameter bps value 1200
> Modulator: parameter f0 value 1200
> Modulator: parameter f1 value 2200
> Modulator: parameter diffenc value 1
> Demodulator: parameter bps value 1200
> Demodulator: parameter f0 value 1200
> Demodulator: parameter f1 value 2200
> Demodulator: parameter diffdec value 1
> Minimum sampling rate: 9600
> Audio IO: type alsa
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> Real sampling rate: 9600
> Joining TxThread
> Joining RxThread
> Releasing IO
> delete event
> on_configtree_selection_changed
> Modulator mode: afsk
> Demodulator mode: afsk
> Packet IO mode: MKISS
> selection: cfg: -  chan: -
> 
> I started the oscilloscope twice and the spectrum analyzer once. The
> display got stuck after the first packet arrived. The output of
> soundmodem itself is
> 
> $ sudo soundmodem -v 4
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: unknown node "text"
> sm[20838]: mkiss: ifname sm0 mtu 256 hwaddr OE8BCK-2 ipaddr 10.0.0.1
> netmask 255.255.255.0 broadcast 10.0.0.255
> sm[20838]: unknown node "text"
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> ALSA: Using sample rate 9600, sample format 2, significant bits 16,
> buffer size 3276, period size 102
> sm[20838]: unknown kiss packet: 0x80 0xa2
> sm[20838]: unknown kiss packet: 0x20 0xa2
> 
> $ dmesg
> [45458.558881] mkiss: AX.25 Multikiss, Hans Albas PE1AYX
> [45458.562150] mkiss: ax0: crc mode is auto.
> [45458.576058] mkiss: sm0: Trying crc-smack
> [45458.668378] mkiss: sm0: Trying crc-flexnet
> [45591.993672] mkiss: ax0: crc mode is auto.
> [45592.005084] mkiss: sm0: Trying crc-smack
> [45592.099000] mkiss: sm0: Trying crc-flexnet
> 
> It decoded not a single packet, but transmitting was a little bit
> strange. No, I did not transmit to the ether, only to my loudspeakers.
> It seemed that there was a holdup, as there were no packets for some
> secondes and then came a lot of them. But it could also be sent this way
> from the ahavi and cups daemons which produce them. It did not change
> the behaviour after restarting having unloaded the ax25 and mkiss
> modules. 
> 
> 73 de OE8BCK,
> Christof
> 
> Am Sonntag, den 13.09.2009, 11:26 -0700 schrieb Dave Platt:
>> Christof Bodner wrote:
>>> Hi,
>>>
>>> Soundmodem stopped to work in Ubuntu 8.04, in 7.10 it works fine with
>>> OSS. Today I tried it again with ALSA plughw: and it stopped after
>>> receiving the first packet. That was reproduceable and occured in the
>>> soundmodemconfig modem diagnostic as well as in the soundmodem itself.
>> Two questions:
>>
>> - Which version are you using?
>>
>> - If you run it from the command line, are there any diagnostic
>>    or error messages printed when it receives or transmits?