VU meter PCB ??

[ChuckD]

Does anyone have a VU meter circuit in PCB form? This of course would allow a user to buy a cheap DC VU meter and use as a real VU and PPM meter.

I saw a circuit link here a while back
I think the link is off this thread:

http://www.groupdiy.com/index.php?topic=1996&highlight=vu+meter+metre

Did anyone make a PCB for this use?

-ChuckD

 

[ChuckD]

It would be nice to bundle the driver by PRR in to the circuit as well and then double everything for stereo operation (2 VUs) .

http://www.groupdiy.com/index.php?topic=2159&postdays=0&postorder=asc&highlight=vu+meter+metre&start=15

Anybody feel like making a PCB design of this??
I would be very greatful !!

MAybe we could convice Gustav to add it to the PCB ording list as well. I know everyone could use a good set of VUs and you can get really cheap DC type ones out of old stereo gear at a local used store.

-ChuckD

 

[mesmer]

heres pix of what im using. the cards are vu and ppm. out of a trident a range.
http://img.photobucket.com/albums/v477/peterreardon/DSCF0039.jpg
http://img.photobucket.com/albums/v477/peterreardon/DSCF0040.jpg

 

[PRR]

> cheap DC VU meter and use as a real VU and PPM meter.

A VU meter hardly warrants a PCB, unless you need a buffer. (And mostly you don't....)

A PPM is a totally different beast, not at all simple.

HERE is a fabulously elegant PPM from a name you know....

 

[ChuckD]

This thread had a pointer to a great schematic that does both as well.
Has anyone tried it?

Thread
http://www.groupdiy.com/index.php?topic=1297&highlight=vu+meter


Schematic
http://sound.westhost.com/project55.htm about

-ChuckD

 

[PRR]

> schematic that does both as well.

Does both badly.

In "VU", it won't respond like a true VU meter. He has the time constants in the electrical side, but the meter response adds to that. Anybody who has worked with true VUs will spot it for a phony.

In "PPM", the time constants are right, but "PPM" almost always implies a dB-linear scale (equal dB per division) instead of just linear. He makes no attempt to do that.

If not compared to a true VU meter, the "vu mode" may be a useful syllabic level indicator. The "ppm" mode looks like a fine peak-meter.