Sound installation requiring multiple surface haptic transducers

Help & Support Robot Parts
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Hi!

I would like to send a sound signal from Ableton Live (music software) to several haptic transducers so that a hard surface can vibrate at a frequency of my choice (most likely 120 to 225 Hz).

As I see it, I have 2 options:

  1. get a raspberry pi with amplifier and connect the transducers to it, and then use an audio cable or USB cable to connect to the computer
  2. use my car stereo (tiny amp) with following specs (4 to 8 ohms, 20 watts) and thus not need the raspberry bi.

Q: Would you go for option 1 or 2?

Q: With the frequency being around 120-225Hz, do you recommend specific transducers to get the most resonance/vibration?

Q: In both cases, I am curious to know whether I can connect several haptic transducers simultaneously? The transducers black and red cables are very short, and I don’t know if voltage/watts are to be considered when attempting to play the frequency through several transducers.

Thank you and apologies for my ignorance.

Best wishes,

5

Hello @leocsd ,

Welcome to RobotShop community.

If the (tiny amp) is good enough for you, you can go with that option, if not, go with the first option.

As for connecting the transducers, we recommend consulting the manufacturer:
https://www.sparkfun.com/support

Let us know if you have further questions.

Sincerely,

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Hi @Ebram

Thank you so much for getting back to me. THat was very helpful.
Do you have any favourite transducers or know someone who specialises in them?
We’re making a haptic board for people to lay their hands on during an immersive experience.

Thanks!

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Hello @leocsd ,

Thank you for your reply.

At this moment, we only have one large surface transducer:

Sincerely,

1 Like