Re: [Alsa-user] Akai EIE

2014-01-23 Thread Nathan Jackson
On Thu, Jan 9, 2014 at 8:37 PM, Robert M. Riches Jr. wrote: >> Date: Thu, 9 Jan 2014 08:09:17 -0500 >> From: Nathan Jackson >> To: Clemens Ladisch >> Cc: alsa-user@lists.sourceforge.net >> >> >> Clemens Ladisch wrote: >> > This device cannot change any of its sample format parameters. So >> > e

Re: [Alsa-user] Akai EIE

2014-01-09 Thread Robert M. Riches Jr.
> Date: Thu, 9 Jan 2014 08:09:17 -0500 > From: Nathan Jackson > To: Clemens Ladisch > Cc: alsa-user@lists.sourceforge.net > > >> Clemens Ladisch wrote: > > This device cannot change any of its sample format parameters. So > > either it sends wrong data, or some data gets dropped by the computer.

Re: [Alsa-user] Akai EIE

2014-01-09 Thread Nathan Jackson
>> Clemens Ladisch wrote: > This device cannot change any of its sample format parameters. So > either it sends wrong data, or some data gets dropped by the computer. > The Raspberry Pi has a horrible USB implementation, and not very much > bandwidth, so I'd guess it's the latter. See the problem

Re: [Alsa-user] Akai EIE

2014-01-08 Thread Clemens Ladisch
Nathan Jackson wrote: > Clemens Ladisch wrote: >> What is the output of "lsusb -v" for this device? > > See attached text file. This device cannot change any of its sample format parameters. So either it sends wrong data, or some data gets dropped by the computer. The Raspberry Pi has a horrible

Re: [Alsa-user] Akai EIE

2014-01-08 Thread Nathan Jackson
Clemens Ladisch wrote: > What is the output of "lsusb -v" for this device? See attached text file. -Nathan Bus 001 Device 007: ID 09e8:0011 AKAI Professional M.I. Corp. Device Descriptor: bLength18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass

Re: [Alsa-user] Akai EIE

2014-01-08 Thread Clemens Ladisch
Nathan Jackson wrote: > arecord -f S16 -r 44100 -c 4 output.wav What is the output of "lsusb -v" for this device? Regards, Clemens -- Rapidly troubleshoot problems before they affect your business. Most IT organization

Re: [Alsa-user] Akai EIE

2014-01-07 Thread Nathan Jackson
Clemens Ladisch wrote: > (please don't top-post, and don't drop the mailing list from replies) Sorry about that, I didn't think to click reply all or did I see your original message. Clemens Ladisch wrote: > So your device supports a sample rate of 41000 Hz? > Wouldn't you want to use 44100 or 48

Re: [Alsa-user] Akai EIE

2014-01-06 Thread Clemens Ladisch
(please don't top-post, and don't drop the mailing list from replies) Nathan Jackson wrote: > The command I used to record was: > > arecord -f S16 -r 41000 -c 4 output.wav So your device supports a sample rate of 41000 Hz? Wouldn't you want to use 44100 or 48000 Hz? Regards, Clemens --

Re: [Alsa-user] Akai EIE

2014-01-05 Thread Clemens Ladisch
(please don't top-post) Nathan Jackson wrote: > I recorded the audio with arecord and played it back with aplay. I get the > same result when I play back with audacity of my development machine. So it's a problem with the recording. How exactly did you record it? Regards, Clemens ---

Re: [Alsa-user] Akai EIE

2014-01-05 Thread Clemens Ladisch
Nathan Jackson wrote: > The recording is to be done on the Raspberry Pi, which has had USB > problems, So the Pi's USB controller driver works now? > When I record my voice with one of our microphones and play it back, I > sound like a chipmunk! How exactly did you do this? With arecord/aplay?