Audio - Revision history

OneArtPlease: typo

2010-11-23T09:07:11Z

typo

2010-11-17T18:57:31Z

Software

← Older revision		Revision as of 18:57, 17 November 2010
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	Once alsamixer is running you can use the arrow keys to navigate, turn volume up/down and use some F keys for switching between playback/recording and settings.		Once alsamixer is running you can use the arrow keys to navigate, turn volume up/down and use some F keys for switching between playback/recording and settings.

			Elphel cameras also come with Jack preinstalled: [[JACK_in_Elphel_cameras]]

2010-09-29T15:09:21Z

← Older revision		Revision as of 15:09, 29 September 2010
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			[[Category:Development Topics]]


	=Parts to try=		=Parts to try=
	=Approved parts=		=Approved parts=

2010-09-22T09:15:32Z

← Older revision		Revision as of 09:15, 22 September 2010
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	With most audio devices you should hear the audio file play through the headphones without any further configurations.		With most audio devices you should hear the audio file play through the headphones without any further configurations.

			==Alsamixer==
			[[Image:Xterm.jpeg\|thumb\|200px]]

			Alsamixer is a graphical audio mixer that you be used with just the console.

			===Installation===
			Download: [[Image:Alsamixer.tgz]]

			Download the tgz archive and transfer it to the camera with FTP to /tmp
			Next, login via telnet/ssh/console to camera and execute:

			cd /
			tar -xzf /tmp/alsamixer.tgz

			===Usage===
			For using alsamixer set terminal type after each relogin via console

			for color output:
			export TERM=xterm
			alsamixer

			for black/white output:
			export TERM=vt220
			alsamixer


			Once alsamixer is running you can use the arrow keys to navigate, turn volume up/down and use some F keys for switching between playback/recording and settings.

2010-09-21T17:08:11Z

Test Audio Playback

← Older revision		Revision as of 17:08, 21 September 2010
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	Download [[Image:Tone.wav]] and transfer the wav file to the camera using FTP then execute in the directory where the file is uploaded to (/tmp might be a good place)		Download [[Image:Tone.wav]] and transfer the wav file to the camera using FTP then execute in the directory where the file is uploaded to (/tmp might be a good place)
	aplay tone.wav		aplay tone.wav

			With most audio devices you should hear the audio file play through the headphones without any further configurations.

2010-09-21T17:07:23Z

Test Audio Playback

← Older revision		Revision as of 17:07, 21 September 2010
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	Most USB audio hardware comes with a built in headphones jack or any other way of audio output. Once the device has been detected as described above you can connect your headphones.		Most USB audio hardware comes with a built in headphones jack or any other way of audio output. Once the device has been detected as described above you can connect your headphones.

	Download [[Image:Tone.wav]]		Download [[Image:Tone.wav]] and transfer the wav file to the camera using FTP then execute in the directory where the file is uploaded to (/tmp might be a good place)

	~~Transfer it~~ to the camera using FTP then execute in the directory where the file is uploaded to (/tmp might be a good place)
	aplay tone.wav		aplay tone.wav

2010-09-21T17:00:21Z

Test Audio Playback

← Older revision		Revision as of 17:00, 21 September 2010
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	Most USB audio hardware comes with a built in headphones jack or any other way of audio output. Once the device has been detected as described above you can connect your headphones.		Most USB audio hardware comes with a built in headphones jack or any other way of audio output. Once the device has been detected as described above you can connect your headphones.

			Download [[Image:Tone.wav]]

			Transfer it to the camera using FTP then execute in the directory where the file is uploaded to (/tmp might be a good place)
			aplay tone.wav

2010-09-21T16:15:53Z

← Older revision		Revision as of 16:15, 21 September 2010
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	=Software=		=Software=

			==Detect Devices==
			USB hardware is hot-plugable and should function just seconds after it was inserted.

	To test whether a USB audio device was detected execute the following in the console:		To test whether a USB audio device was detected execute the following in the console:
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	Subdevices: 1/1		Subdevices: 1/1
	Subdevice #0: subdevice #0		Subdevice #0: subdevice #0

			==Test Audio Playback==

			Most USB audio hardware comes with a built in headphones jack or any other way of audio output. Once the device has been detected as described above you can connect your headphones.

2010-09-21T16:11:27Z

← Older revision		Revision as of 16:11, 21 September 2010
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	* [http://www.logitech.com/index.cfm/webcam_communications/microphones/devices/221&cl=us,en Logitech USB microphone]		* [http://www.logitech.com/index.cfm/webcam_communications/microphones/devices/221&cl=us,en Logitech USB microphone]
	* [http://www.infra-sonic.com/site/p_jam_ufo.php Jam Mate UFO ~$200]		* [http://www.infra-sonic.com/site/p_jam_ufo.php Jam Mate UFO ~$200]

			=Software=

			To test whether a USB audio device was detected execute the following in the console:
			aplay -l

			you should get a list of connected the devices similar to this:
			** List of PLAYBACK Hardware Devices **
			card 0: default [USB AUDIO ], device 0: USB Audio [USB Audio]
			Subdevices: 1/1
			Subdevice #0: subdevice #0

2010-06-28T10:26:18Z

← Older revision		Revision as of 10:26, 28 June 2010
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	=Parts to try=		=Parts to try=
			=Approved parts=
			THE T.BONE MICPLUG USB : http://www.thomann.de/gb/the_tbone_micplug_usb.htm [[Image:T-bone.jpg\|frame\|T.Bone MicPlug USB]]

			The T.Bone MicPlug USB - USB interface with mic preamp and internal A/D converter (16bit, 44.1/48kHz), internal 48V phantom power, headphone output, professional preamp with adjustable gain, USB powered, includes USB cable.

	==Audio USB interface (with XLR-mic pre amp)==		==Audio USB interface (with XLR-mic pre amp)==
	* [http://www.tascam.de/art/en/artcess/preamp/usbdualpre.html ART dual pre]		* [http://www.tascam.de/art/en/artcess/preamp/usbdualpre.html ART dual pre]
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	* [http://www.logitech.com/index.cfm/webcam_communications/microphones/devices/221&cl=us,en Logitech USB microphone]		* [http://www.logitech.com/index.cfm/webcam_communications/microphones/devices/221&cl=us,en Logitech USB microphone]
	* [http://www.infra-sonic.com/site/p_jam_ufo.php Jam Mate UFO ~$200]		* [http://www.infra-sonic.com/site/p_jam_ufo.php Jam Mate UFO ~$200]

	~~=Approved parts=~~