From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: snd-bebob and PrismSound Orpheus fails
	with	snd_pcm_hw_params_set_channels
Date: Thu, 23 Apr 2015 14:22:30 +0200
Message-ID: <5538E406.9060407@ladisch.de>
References: <CAJ0eYfU2GbYMZe=RpEecA15OBcVGt=q2xchykrCXLUZcf=886g@mail.gmail.com>
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To: Mike Ood <jh1ood@gmail.com>, alsa-devel@alsa-project.org
List-Id: alsa-devel@alsa-project.org

Mike Ood wrote:
> % aplay -D hw:2,0 --channels=2 test.wav

You are trying to play a two-channel file ...

> % cat /proc/asound/card2/firewire/formation
> Output Stream from device:
> Rate PCM MIDI
> 44100 10 1

... on a device that supports only ten channels.

An with "hw", you have disabled any automatic format conversion.

Try "plughw:2" or "default:2".


Regards,
Clemens