Emic speech board to amplifier

Joe Fishback

·I have an Emic speech board that is connected to small 2" 8 ohm speaker. The speaker is connected to the SP- and SP+ pins. The volume is low, no matter what I do. I would like to connect an Emic speech board to an amplifier.
·
The Parallax instructions talk of a Pin named "AOUT". Is this where I connect an amplifier? ·Do I connect a wire to the GND ? ·The instructions say to "that the AOUT pin must capacitively coupled to the load", what does this mean? Any diagrams or information would be helpful.

Joe Fishback


▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
······ Joe Fishback

-Robots are my friends-

skylight

mounting the speaker in a box will dramatically increase the output try a thin cardboard box first to see what i mean

uxorious

Have you tried adjusting the volume on the EMIC? Here's my code for a BS2, EMIC, and TSL230. When the run button is pressed, the light level from the TSL230 is read and announced through the EMIC. I had the same issue with volume so I did two things: 1) As skylight suggests, I mounted the speaker in a pill bottle and the volume doubled easily. 2) I increased the volume to max on the EMIC. Sounds great now. Sorry, no pictures of the setup

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
~~ dRu ~~

Zoot

You can tie AOUT to a small amp (like an LM386) if you want some serious volume. But a proper speaker enclosure will *always* go a long way to making sound output sound better and increasing volume.

See this thread: http://forums.parallax.com/showthread.php?p=632642

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
When the going gets weird, the weird turn pro. -- HST

1uffakind.com/robots/povBitMapBuilder.php
1uffakind.com/robots/resistorLadder.php