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[Bug 1286021] Re: 2.1 surround support (userspace)



do you mean surround21 not yet available in Ubuntu 14.04 LTS ?

		input:analog-stereo: Stereo analogico input (sinks: 0, sources: 1, priority. 60)
		output:analog-stereo: Stereo analogico output (sinks: 1, sources: 0, priority. 6000)
		output:analog-stereo+input:analog-stereo: Duplex stereo analogico (sinks: 1, sources: 1, priority. 6060)
		output:analog-surround-40: Surround analogico 4.0 output (sinks: 1, sources: 0, priority. 700)
		output:analog-surround-40+input:analog-stereo: Surround analogico 4.0 output + Stereo analogico input (sinks: 1, sources: 1, priority. 760)
		output:analog-surround-21: Surround analogico 2.1 output (sinks: 1, sources: 0, priority. 800)
		output:analog-surround-21+input:analog-stereo: Surround analogico 2.1 output + Stereo analogico input (sinks: 1, sources: 1, priority. 860)
		off: Spento (sinks: 0, sources: 0, priority. 0)
	Profilo attivo: output:analog-surround-21+input:analog-stereo


refer to those user guides,  look like bass is done by software instead
of hardware as user can specify cutoff frequency

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  2.1 surround support (userspace)

Status in “alsa-lib” package in Ubuntu:
  Fix Committed
Status in “pulseaudio” package in Ubuntu:
  In Progress

Bug description:
  2.1 surround should work as seamlessly as other surround options, such
  as 4.0, 5.1 and 7.1 work today.

  Alsa-lib and pulseaudio patches for 14.04 can be tested here:


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