USB Audio ADC/DACs for recording, etc

Just to let people know I’ve now put up results at

http://www.audiomisc.co.uk/HFN/ADC/USBrecording.html

showing the behaviour of three different USB Audio devices. Most tests done with RO (ARMiniX). So the devices should work with machines using the USB Audio capable modules.

Jim

!USBRecorder is a program that can be used to make audio recordings via a
suitable USB audio device. I have now released a new version (Version 0.61)
which has some changes and improvements over earlier versions.

As previously, this can be found at

http://www.audiomisc.co.uk/software/USBAudioApps.zip

along with some other USB audio programs.

The page at

http://www.audiomisc.co.uk/software/index.html

also gives links for finding Colin Granville/Dave Higton’s modules that
support USB audio. These modules (and thus recording) should work on an
Iyonix running RO5.18 or later, and an ARMiniX or similar running 5.20 or
later. I have not tested earlier OS versions or other hardware.

Note that versions 0.60 and later of !USBRecorder differ significantly from
earlier versions. So even if you have used versions earlier than 0.60 you
should read the new !Help file carefully before use.

The new versions now show a graphical interface whilst single-tasking to
minimise the risk of other applications disturbing recording. The graphical
interface now provides monitoring of the audio recording process, including
a pair of ‘PPM’ (Peak Programme Meters) and a display of any time ‘offset’
- delays in saving data. The new versions start up showing the audio input
levels on the PPMs but only actually start recording when the user chooses.
recording then proceeds until the user halts the recording (or a max file
size set by the user is reached). This makes it easier to set up and make a
recording.

As previously, the program is an experimental/demo, but is able to make
good recordings if used with appropriate hardware, etc. The source code is
provided and anyone who wishes is encouraged to develop a better USB
recorder! :-)

Details of some USB devices that are known to work are discussed on

http://www.audiomisc.co.uk/HFN/ADC/USBrecording.html

Jim