Ohbot Speech

Make Ohbot Say Something

Ohbot will speak any words typed into the text box on the Say Until Done block. 

Sequence Say Commands

The next Say Until Done block in the sequence will run once Ohbot has finished speaking the text in the first block. ​

Say Database Command

Ohbot can speak from a database of words or phrases using the Say DB block. What Ohbot says can either be selected randomly (as shown above) or by specifying a set (left box) and parameter (right box) value or by dropping in a variable reporter block. The contents of the database can be modified by clicking the three line icon on the right hand side of the block. 

Ohbot Speech Emphasis

Set Voice

​​​The Set Voice block lets you set the type of voice your robot speaks with. Click the drop down chevron to see the voices installed on your computer and to select. Additional voices can be added for different languages; and for lower and higher pitched speech by installing these in Windows. For instructions on how to install different voices see the Ohbot voices document here. Once a Set Voice block runs the voice will be used for all speech until another blocks runs to change the voice used, or until the reset button is used, or a new program is loaded.

Set Speech

This Set Speech block lets you set the pitch, rate or volume of speech. Enter a value between 0 (lowest for pitch, slowest for rate or quietest for volume) and 10 (highest for pitch, fastest for rate or loudest for volume). The default values for this are 5 for pitch and rate and 10 for volume. This setting will be applied to all speech until another of these blocks is used to reset the speech attribute, or until the reset button is used, or a new program is loaded.

Set speech within a sentence.

You can also set emphasis within a Say block text using the curly brackets to define the part of the text to change. 

{pitch:rate:volume:text}

e.g. {x-high:fast:75:Hello}

​Pitch can be x-low, low, medium, high, x-high, or default

• Rate can be x-slow, slow, medium, fast, x-fast or default
• Volume is a number between 0 and 100

Ohbot Movement

Ohbot has seven servo motors that move its head, eyes, eyelids and lips. The position and speed of each motor can be set using Set [motor] to [position] or Change [motor name] to [position] instruction blocks.   

The position of Ohbots head nod can be set using the HeadNod block. The number in the block sets the position. The robot will stay in this position until another HeadNod block runs to set it to a different position. 

The Set [motor] to [number] block does not include any timing component. We can address this with  

So sequencing instructions like this will result in Ohbot only moving to the position set by the final block as the motors will not have time to move to each position before the block to set to the next position runs. ​

Synchronise Lips

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​If you would like Ohbot's lips to smile, frown or look surprised during gaps between speech here is one way to do it.

Ohbot sense