
			AudioIn v1.00 (24-Sep-07)
			-------------------------


AudioIn allows you to record audio data from your computer and save it as a
Wave format audio file.


Operation
---------

Run !AudioIn, and an icon appears on the icon bar. Click this to open a
window which presents several options.

    Source
	Sets the audio input source. Microphone and Line-in correspond to the
	'Mic' and 'Audio in' sockets on the back of the Iyonix; CD is the
	internal CD drive. Stereo Mix and Mono Mix record a combination of
	all audio sources - you can adjust the volume of each contributing
	source by using the Sound Setup window of Configure. The Aux-in and
	Phone connections are not usually available outside of the Iyonix
	case.

    Rate
    	This specifies the audio sampling rate. Lower rates give lower
	quality but smaller files, and higher rates give higher quality but
	larger files. The default, 44100Hz, is the same rate as CDs use.

    Format
	This controls how the data appears. Mono and Stereo sets the number
	of channels - when recording a mono source (for example Microphone or
	Mono Mix) in stereo, the same data is recorded for both channels.
	When recording a stereo source (Line-in, CD, Stereo Mix) in mono, the
	left and right channels are mixed together.

	16 bit / 8 bit data controls the accuracy of the audio - 16 bit is
	higher quality but again leads to larger files.

	Signed / Unsigned is another property of the audio format - Wave
	format files require that 16 bit data is signed, 8 bit unsigned, so
	these are the default settings.

    Gain
    	This allows finer control over the volume of the microphone input.
	This setting is independent of the Microphone volume set using
	Configure, which only applies to the Mix inputs.

Underneath these are two buttons which control the recording. Press the red
record button to start recording - the recording time will start to count in
the display and the record button will flash. The green button stops
recording and opens a Save box from which you can drag the resulting audio
file to save it.

Further information is available using the Help application.


--
Christian Ludlam
chris@recoil.org

			AudioIn v1.03 (04.09.21)

New name: USBWavRec
Built with Colin Granville USBAudioLib and from work done by Christian Ludlam on an Iyonix (! AudioIn).
Thanks to them.

Use
On startup, the application detects if there is a usb audio device that can record.
Its name is displayed as the source, as well as the current sampling frequency. At the bottom of the window there is a textarea  summarizing the parameters of the device.
You can choose the sampling frequency and the desired wave format. If the device provides 32/24 bit samples, they will be saved as in the wav file. For this type of device you can record in 16bits stereo, or left or right mono depending on the connected channel.

At the moment 16b devices can only record in stereo, I hope ...

The files obtained can be read by different applications:  see Test results below.




French:
Au dmarrage, l'application dtecte si il y a un appareil audio usb pouvant enregistr. Son nom est affich comme source, ainsi que la frqunce d'chantillonage en cours.  Dans le bas de la fentre il y a une zone de texte rcapitulant les paramtres de l'appareil.
On peut choisir la frquence d'chantillonage et le format wave dsir.
Si l'appareil fournit des chantillons 32/24 bits, ils seront enregistrs tel que dans le fichier wav.
Pour ce type d'appareil on peut enregistrer en 16bits stro , ou mono gauche ou droit suivant le canal connect.
Pour le moment les appareils 16b ne peuvent enregister qu'en stro, j'espre...

Les fichiers obtenus peuvent tre relus par diffrents applications:

==========  Test results / Rsultat du test.   ===========

Note01: Prosound stop DigitalCd working, need to reset SharedSound module
        Prosound bloque DigitalCD, il faut reinitialiser le module SharedSound.

Note02:  MonoR et MonoL are played speed 2x et high 2x by !Isocplayer and !DigitalCD
        MonoR et MonoL sont jous 2x trop et trop vite par !Isocplayer and !DigitalCD

Record		IsocPlayer	Prosound	StudioSnd	DigitalCD
32b stereo	yes		no		no		no
16b stereo	yes		yes		yes		yes
16b monoR	no		yes		yes		no
16b monoL	no		yes		yes		no