Next version, if I recall correctly

Is that because you have to trap the speaker port and access the frequency/duration of the port call?

The BEEP statement outputs a BEL (ASCII 7) character, and producing a speaker tone for BEL has only been implemented in SVN.

With QBasic in 0.74(-2) you can use a "SOUND 900,6" statement for a tone with approximately the same frequency and duration. Professional versions of QB may have a different or enhanced statement for speaker tones; not sure.

Ok, thanks, I replaced all my BEEP statements with SOUND 900,6 and it works!

Is there by any chance a way to ECHO or TYPE the BEL symbol at the command prompt from a batch or text file? There are a few other control codes as well (8-10, 13, 27) that I've thus far been unable to work out a way to display the associated ASCII character/glyph in DOSBox (0.74) - presumably because of the fundamental and important keyboard strokes they typically represent. Thanks kindly, in advance, for any information.

The symbols of certain control characters are not displayed by teletype output. In real DOS you get a caret symbol followed by a letter (e.g. ^G for BEL), although DOSBox's internal DOS does not do that and in some cases a symbol is displayed. The way around the "processing" of control characters is to write to display memory directly rather than using any form of teletype output.

I eventually added a config option to override the frequency in hertz and duration in ticks of a sound statement..

I did create a file BEEP.TXT which contains an ASCII 7 and typed it in CMD and it returned a BEEP but did not in DOSbox!?

As I mentioned before, the BEEP statement in QB outputs a BEL (ASCII 7), so it's little different than using TYPE to output a BEL. If you must have the speaker tone for BEL right now then use an SVN build of DOSBox, otherwise wait for the next release. Thread closed; nothing more needs to be said on this subject.