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by Steve-o
Sun Oct 07, 2012 3:00 pm
Forum: Troubleshooting
Topic: Record USB audio input
Replies: 31
Views: 33550

Re: Record USB audio input

USB soundcards (and webcams) use isochronous transfers which are broken in the raspberry pis usb driver. You will have to wait for a fix before using the usb soundcard.
by Steve-o
Sat Sep 08, 2012 3:08 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73309

Re: USB packet loss.

People say really silly things like 'I read that the Raspberry Pi would make an ideal hi-fi media [...] I don't get why you are getting mad at him. He posted his interest in getting usb audio fixed but nowhere in his post did he demand an instant fix. I am planning to use the rPi in the same way bu...
by Steve-o
Mon Jul 09, 2012 5:10 pm
Forum: Troubleshooting
Topic: Distorted Sound with USB sound card
Replies: 11
Views: 6037

Re: Distorted Sound with USB sound card

Well I am using the USB card with a hub on a router with a single port and never noticed any distortions. The router has a rather slow cpu and doesn't even cause problems when streaming media from the USB hard disk which also shares the port. So it most probably is related to the pi's usb driver.
by Steve-o
Fri Jun 22, 2012 7:51 am
Forum: Troubleshooting
Topic: Distorted Sound with USB sound card
Replies: 11
Views: 6037

Re: Distorted Sound with USB sound card

I guess it might be related to this issue: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=5249 I was told that USB audio devices usually run in isochronous mode. So they can't request resends for broken packages. So USB hiccups lead to sound dropouts. The higher the Processor and/or USB load...
by Steve-o
Mon Jun 18, 2012 5:02 pm
Forum: Troubleshooting
Topic: Distorted Sound with USB sound card
Replies: 11
Views: 6037

Re: Distorted Sound with USB sound card

Yes, the higher the USB or network load, the worse are the distortions.
by Steve-o
Thu Jun 14, 2012 9:49 pm
Forum: Troubleshooting
Topic: Distorted Sound with USB sound card
Replies: 11
Views: 6037

Re: Distorted Sound with USB sound card

Yes, even high values don't change anything. The mpd homepage says that the default buffer size is enough for about a second of music. After increasing the buffer to the tenfold the distortion was still present in distances of less than a second. I also tried messing with the alsa-settings (asound.c...
by Steve-o
Wed Jun 06, 2012 5:58 pm
Forum: Troubleshooting
Topic: Distorted Sound with USB sound card
Replies: 11
Views: 6037

Distorted Sound with USB sound card

Hi, I am using a dedicated USB sound card with a higher quality DAC to connect to my Hi-Fi setup. The sound card worked with alsa out of the box, however when there is load on the pi the audio output stutters. For example if I am doing a apt-get update. I tried giving mpd a higher priority via nice ...
by Steve-o
Thu May 17, 2012 6:09 pm
Forum: Troubleshooting
Topic: Issues with USB and Ethernet
Replies: 8
Views: 2367

Re: Issues with USB and Ethernet

When your hub doesn't work when you cut the +5V, it's a clear sign that the hub was drawing power from the RP! It is exactly what happened with mine. I have now soldered an extra wire in my hub so the external power supply connects to the would-have-been-there USB 5V. Haven't got to testing it yet....
by Steve-o
Thu May 17, 2012 4:39 pm
Forum: Troubleshooting
Topic: Issues with USB and Ethernet
Replies: 8
Views: 2367

Re: Issues with USB and Ethernet

Yes, I've noticed that too, with a Logik (PC World) powered hub. I needed to connect four USB devices (KB/mouse/USB key/data input) so had to use a hub. Decided at one point to cold-reboot the Pi, so disconnected the Pi power only to discover that it was all still working. Slightly unexpected but p...
by Steve-o
Thu May 17, 2012 2:54 pm
Forum: Troubleshooting
Topic: Issues with USB and Ethernet
Replies: 8
Views: 2367

Re: Issues with USB and Ethernet

Ok I tried around some more. I found an USB-Y-cable from an external hard drive. I used that cable to connect the hub to the rPi but it still would not work. So I disconnected the rPi from its power supply. Interestingly, the rPi was still up and running. So the usb hub delivered enough power to als...
by Steve-o
Thu May 17, 2012 2:15 pm
Forum: Troubleshooting
Topic: Issues with USB and Ethernet
Replies: 8
Views: 2367

Re: Issues with USB and Ethernet

You might be right. How did you isolate the pis power from the hub? By cutting the 5V wire? Edit: I isolated the 5V point in the usb connector. The Belkin hub does not seem to start up without 5V from the host. The other one connects, but as soon as I connect something it throws errors in dmesg. Did...
by Steve-o
Thu May 17, 2012 12:51 pm
Forum: Troubleshooting
Topic: Issues with USB and Ethernet
Replies: 8
Views: 2367

Issues with USB and Ethernet

Hey everyone, I luckily received my pi yesterday. Everything I tried until now including XBMC worked fine. I am trying to setup my USB peripherals but as soon as I plug in my powered USB hub, ethernet fails. dmesg shows hundreds of "eth0: event 4 may have been dropped". All USB devices are however d...
by Steve-o
Fri Mar 23, 2012 7:07 pm
Forum: General discussion
Topic: Post your estimated arrival dates
Replies: 323
Views: 57031

Re: Post your estimated arrival dates

I ordered 4pm on 29th march from Farnell in Germany. Now I got an email telling my the ETA is in august. Shouldn't I be further up in the queue?
by Steve-o
Sun Mar 18, 2012 4:03 pm
Forum: General discussion
Topic: Running uShare Media Server
Replies: 1
Views: 1442

Re: Running uShare Media Server

<t>That would work fine. I am currently using a home-router with Openwrt and minidlna installed to stream videos to my TV.<br/> <br/> But I guess the better solution would be to hook up to rPi to your television and use XBMC to play your videos. The 360 has very limited format support and also is ve...
by Steve-o
Tue Mar 06, 2012 8:27 pm
Forum: General discussion
Topic: Debian 'armhf' (hard-float ABI) for Raspberry Pi?
Replies: 26
Views: 50970

Re: Debian 'armhf' (hard-float ABI) for Raspberry Pi?

Sorry if this is a stupid question, but what is wrong with cross-compiling packages on a standard PC? I have been using OpenWRT for my MIPSel router a while and cross-compiling has never caused any problems for me.

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