Creating a vibration device based on bass in audio

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First, I'll admit that I haven't done any real electrical engineering in years so I'm quite rusty. But here's a fun project to contemplate:



I'm building a device that "rumbles" with the bass in the audio, to increase immersion. One similar device is this Basslet. It's a "silent haptic subwoofer" if you will.



Current concept:



  1. USB or 3.5mm jack audio input from PC

  2. Some low pass filtering, ideally configurable. Was hoping to use an Arduino but not sure if it's powerful enough... Google searches didn't help.

  3. Output processed signal to a vibration actuator (motor? linear?)

Desired result: a box that vibrates with the lowest thumps in music and movie audio.



Any tips on where to look/start? Should be a fun project!










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  • Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
    – Eugene Sh.
    4 hours ago











  • @EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
    – You Speak So Well
    4 hours ago










  • If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
    – Eugene Sh.
    4 hours ago










  • Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
    – F.Ahmed
    3 hours ago










  • Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
    – Sparky256
    3 hours ago














up vote
1
down vote

favorite












First, I'll admit that I haven't done any real electrical engineering in years so I'm quite rusty. But here's a fun project to contemplate:



I'm building a device that "rumbles" with the bass in the audio, to increase immersion. One similar device is this Basslet. It's a "silent haptic subwoofer" if you will.



Current concept:



  1. USB or 3.5mm jack audio input from PC

  2. Some low pass filtering, ideally configurable. Was hoping to use an Arduino but not sure if it's powerful enough... Google searches didn't help.

  3. Output processed signal to a vibration actuator (motor? linear?)

Desired result: a box that vibrates with the lowest thumps in music and movie audio.



Any tips on where to look/start? Should be a fun project!










share|improve this question







New contributor




You Speak So Well is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
    – Eugene Sh.
    4 hours ago











  • @EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
    – You Speak So Well
    4 hours ago










  • If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
    – Eugene Sh.
    4 hours ago










  • Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
    – F.Ahmed
    3 hours ago










  • Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
    – Sparky256
    3 hours ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











First, I'll admit that I haven't done any real electrical engineering in years so I'm quite rusty. But here's a fun project to contemplate:



I'm building a device that "rumbles" with the bass in the audio, to increase immersion. One similar device is this Basslet. It's a "silent haptic subwoofer" if you will.



Current concept:



  1. USB or 3.5mm jack audio input from PC

  2. Some low pass filtering, ideally configurable. Was hoping to use an Arduino but not sure if it's powerful enough... Google searches didn't help.

  3. Output processed signal to a vibration actuator (motor? linear?)

Desired result: a box that vibrates with the lowest thumps in music and movie audio.



Any tips on where to look/start? Should be a fun project!










share|improve this question







New contributor




You Speak So Well is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











First, I'll admit that I haven't done any real electrical engineering in years so I'm quite rusty. But here's a fun project to contemplate:



I'm building a device that "rumbles" with the bass in the audio, to increase immersion. One similar device is this Basslet. It's a "silent haptic subwoofer" if you will.



Current concept:



  1. USB or 3.5mm jack audio input from PC

  2. Some low pass filtering, ideally configurable. Was hoping to use an Arduino but not sure if it's powerful enough... Google searches didn't help.

  3. Output processed signal to a vibration actuator (motor? linear?)

Desired result: a box that vibrates with the lowest thumps in music and movie audio.



Any tips on where to look/start? Should be a fun project!







microcontroller usb audio signal-processing vibration






share|improve this question







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You Speak So Well is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







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Check out our Code of Conduct.









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asked 4 hours ago









You Speak So Well

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61




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Check out our Code of Conduct.











  • Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
    – Eugene Sh.
    4 hours ago











  • @EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
    – You Speak So Well
    4 hours ago










  • If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
    – Eugene Sh.
    4 hours ago










  • Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
    – F.Ahmed
    3 hours ago










  • Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
    – Sparky256
    3 hours ago
















  • Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
    – Eugene Sh.
    4 hours ago











  • @EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
    – You Speak So Well
    4 hours ago










  • If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
    – Eugene Sh.
    4 hours ago










  • Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
    – F.Ahmed
    3 hours ago










  • Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
    – Sparky256
    3 hours ago















Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
– Eugene Sh.
4 hours ago





Low pass filter (analog, not arduino or something) whose output will feed an amplifier input connected to a DC vibration motor... But you have already outlined that. Not much more than that.
– Eugene Sh.
4 hours ago













@EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
– You Speak So Well
4 hours ago




@EugeneSh. Thank you for the comment. Since I don't know how the vibration actuator will work and what types of input it might accept, I might have to use a microcontroller, or so I thought. In that case, do I just put the output of the analog low-pass filter to analog input pins on an Arduino?
– You Speak So Well
4 hours ago












If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
– Eugene Sh.
4 hours ago




If you want to control the motor wit Arduino? Yeah.. but I would expect some noticeable latency.
– Eugene Sh.
4 hours ago












Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
– F.Ahmed
3 hours ago




Welcome to EE.SE! Find out everything you need to get started by taking a 2-minute tour (electronics.stackexchange.com/tour).
– F.Ahmed
3 hours ago












Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
– Sparky256
3 hours ago




Think in terms of a frequency divider. All bass inputs are divided by 2 and 4, to stay an 1 or 2 octaves down from the dominate bass note. Of course this results in a digital output that needs a heavy filter to get it back to a sine wave. These "sub-bass" notes will lag behind the original so it cal have a muddy sound. An Arduino or fast Raspberry Pi 3B could do this as a DSP effect, but cost and programming time may overwhelm you. The best approach is the most expensive such as synthesizers.
– Sparky256
3 hours ago










2 Answers
2






active

oldest

votes

















up vote
2
down vote













Deciding on the actuator will precede any decision on the driver.



Philips AmbX many years ago did a rumbler for gaming, and XBox controllers have rumblers built in that consist of nothing more than small motors with eccentrics attached - just a bigger version of the vibrator in cellphones. These can be made to rumble at varying frequencies depending on drive voltage (most are just brushed DC motors), but are pretty crude and not great for syncing to music though acceptable for sound effects.



For a better relationship to the actual bass you need a device that can be made to have a displacement that follows the bass, at last over a limited frequency range. A mass attached to a linear motor or solenoid is an obvious choice - looks like that is what the Basslet does, but probably the cheapest way is to use a speaker. I have at home one small Bluetooth speaker that really thumps a lot more than the larger versions I have of the same, and the trick is the use of an auxiliary bass radiator. This is similar to a speaker, without the voice coil, and with additional mass attached to the cone or plane, which gives it a far lower resonant frequency than a similarly sized speaker could - at the expense of a limited range over which it can resonate. The surprising thing is that it can be driven by the pressure generated in a sealed enclosure by a bass driver only about 60mm in diameter.



enter image description here



This is one I found on Alibaba that is similar. This then becomes more of a mechanical project, with a fairly simple amplifier that would need a low-pass filter. The ABR can be tuned by adding mass to lower the resonance.






share|improve this answer
















  • 1




    A rational low cost solution. Other solutions have high price tags.+1
    – Sparky256
    2 hours ago

















up vote
1
down vote













  1. You can use a dspic to process audio, instead of arduino.

  2. For the actuator you can use something similar to the motors used in the game controllers. As this has to be small, you can even use some stepper motor similar to the ones present in old notebook floppy drives. A motor embedded in the pcb might be an idea: https://hackaday.io/project/39494-pcb-motor .
    The idea is that you have some umballanced wheel that turns with a motor.

  3. I would look for ideas from game dyiers, like this: https://lifehacker.com/build-a-diy-rumbling-gaming-chair-1765337209





share|improve this answer








New contributor




Pitagoras is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

















  • If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
    – Sparky256
    3 hours ago










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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
2
down vote













Deciding on the actuator will precede any decision on the driver.



Philips AmbX many years ago did a rumbler for gaming, and XBox controllers have rumblers built in that consist of nothing more than small motors with eccentrics attached - just a bigger version of the vibrator in cellphones. These can be made to rumble at varying frequencies depending on drive voltage (most are just brushed DC motors), but are pretty crude and not great for syncing to music though acceptable for sound effects.



For a better relationship to the actual bass you need a device that can be made to have a displacement that follows the bass, at last over a limited frequency range. A mass attached to a linear motor or solenoid is an obvious choice - looks like that is what the Basslet does, but probably the cheapest way is to use a speaker. I have at home one small Bluetooth speaker that really thumps a lot more than the larger versions I have of the same, and the trick is the use of an auxiliary bass radiator. This is similar to a speaker, without the voice coil, and with additional mass attached to the cone or plane, which gives it a far lower resonant frequency than a similarly sized speaker could - at the expense of a limited range over which it can resonate. The surprising thing is that it can be driven by the pressure generated in a sealed enclosure by a bass driver only about 60mm in diameter.



enter image description here



This is one I found on Alibaba that is similar. This then becomes more of a mechanical project, with a fairly simple amplifier that would need a low-pass filter. The ABR can be tuned by adding mass to lower the resonance.






share|improve this answer
















  • 1




    A rational low cost solution. Other solutions have high price tags.+1
    – Sparky256
    2 hours ago














up vote
2
down vote













Deciding on the actuator will precede any decision on the driver.



Philips AmbX many years ago did a rumbler for gaming, and XBox controllers have rumblers built in that consist of nothing more than small motors with eccentrics attached - just a bigger version of the vibrator in cellphones. These can be made to rumble at varying frequencies depending on drive voltage (most are just brushed DC motors), but are pretty crude and not great for syncing to music though acceptable for sound effects.



For a better relationship to the actual bass you need a device that can be made to have a displacement that follows the bass, at last over a limited frequency range. A mass attached to a linear motor or solenoid is an obvious choice - looks like that is what the Basslet does, but probably the cheapest way is to use a speaker. I have at home one small Bluetooth speaker that really thumps a lot more than the larger versions I have of the same, and the trick is the use of an auxiliary bass radiator. This is similar to a speaker, without the voice coil, and with additional mass attached to the cone or plane, which gives it a far lower resonant frequency than a similarly sized speaker could - at the expense of a limited range over which it can resonate. The surprising thing is that it can be driven by the pressure generated in a sealed enclosure by a bass driver only about 60mm in diameter.



enter image description here



This is one I found on Alibaba that is similar. This then becomes more of a mechanical project, with a fairly simple amplifier that would need a low-pass filter. The ABR can be tuned by adding mass to lower the resonance.






share|improve this answer
















  • 1




    A rational low cost solution. Other solutions have high price tags.+1
    – Sparky256
    2 hours ago












up vote
2
down vote










up vote
2
down vote









Deciding on the actuator will precede any decision on the driver.



Philips AmbX many years ago did a rumbler for gaming, and XBox controllers have rumblers built in that consist of nothing more than small motors with eccentrics attached - just a bigger version of the vibrator in cellphones. These can be made to rumble at varying frequencies depending on drive voltage (most are just brushed DC motors), but are pretty crude and not great for syncing to music though acceptable for sound effects.



For a better relationship to the actual bass you need a device that can be made to have a displacement that follows the bass, at last over a limited frequency range. A mass attached to a linear motor or solenoid is an obvious choice - looks like that is what the Basslet does, but probably the cheapest way is to use a speaker. I have at home one small Bluetooth speaker that really thumps a lot more than the larger versions I have of the same, and the trick is the use of an auxiliary bass radiator. This is similar to a speaker, without the voice coil, and with additional mass attached to the cone or plane, which gives it a far lower resonant frequency than a similarly sized speaker could - at the expense of a limited range over which it can resonate. The surprising thing is that it can be driven by the pressure generated in a sealed enclosure by a bass driver only about 60mm in diameter.



enter image description here



This is one I found on Alibaba that is similar. This then becomes more of a mechanical project, with a fairly simple amplifier that would need a low-pass filter. The ABR can be tuned by adding mass to lower the resonance.






share|improve this answer












Deciding on the actuator will precede any decision on the driver.



Philips AmbX many years ago did a rumbler for gaming, and XBox controllers have rumblers built in that consist of nothing more than small motors with eccentrics attached - just a bigger version of the vibrator in cellphones. These can be made to rumble at varying frequencies depending on drive voltage (most are just brushed DC motors), but are pretty crude and not great for syncing to music though acceptable for sound effects.



For a better relationship to the actual bass you need a device that can be made to have a displacement that follows the bass, at last over a limited frequency range. A mass attached to a linear motor or solenoid is an obvious choice - looks like that is what the Basslet does, but probably the cheapest way is to use a speaker. I have at home one small Bluetooth speaker that really thumps a lot more than the larger versions I have of the same, and the trick is the use of an auxiliary bass radiator. This is similar to a speaker, without the voice coil, and with additional mass attached to the cone or plane, which gives it a far lower resonant frequency than a similarly sized speaker could - at the expense of a limited range over which it can resonate. The surprising thing is that it can be driven by the pressure generated in a sealed enclosure by a bass driver only about 60mm in diameter.



enter image description here



This is one I found on Alibaba that is similar. This then becomes more of a mechanical project, with a fairly simple amplifier that would need a low-pass filter. The ABR can be tuned by adding mass to lower the resonance.







share|improve this answer












share|improve this answer



share|improve this answer










answered 2 hours ago









Phil G

3065




3065







  • 1




    A rational low cost solution. Other solutions have high price tags.+1
    – Sparky256
    2 hours ago












  • 1




    A rational low cost solution. Other solutions have high price tags.+1
    – Sparky256
    2 hours ago







1




1




A rational low cost solution. Other solutions have high price tags.+1
– Sparky256
2 hours ago




A rational low cost solution. Other solutions have high price tags.+1
– Sparky256
2 hours ago












up vote
1
down vote













  1. You can use a dspic to process audio, instead of arduino.

  2. For the actuator you can use something similar to the motors used in the game controllers. As this has to be small, you can even use some stepper motor similar to the ones present in old notebook floppy drives. A motor embedded in the pcb might be an idea: https://hackaday.io/project/39494-pcb-motor .
    The idea is that you have some umballanced wheel that turns with a motor.

  3. I would look for ideas from game dyiers, like this: https://lifehacker.com/build-a-diy-rumbling-gaming-chair-1765337209





share|improve this answer








New contributor




Pitagoras is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

















  • If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
    – Sparky256
    3 hours ago














up vote
1
down vote













  1. You can use a dspic to process audio, instead of arduino.

  2. For the actuator you can use something similar to the motors used in the game controllers. As this has to be small, you can even use some stepper motor similar to the ones present in old notebook floppy drives. A motor embedded in the pcb might be an idea: https://hackaday.io/project/39494-pcb-motor .
    The idea is that you have some umballanced wheel that turns with a motor.

  3. I would look for ideas from game dyiers, like this: https://lifehacker.com/build-a-diy-rumbling-gaming-chair-1765337209





share|improve this answer








New contributor




Pitagoras is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

















  • If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
    – Sparky256
    3 hours ago












up vote
1
down vote










up vote
1
down vote









  1. You can use a dspic to process audio, instead of arduino.

  2. For the actuator you can use something similar to the motors used in the game controllers. As this has to be small, you can even use some stepper motor similar to the ones present in old notebook floppy drives. A motor embedded in the pcb might be an idea: https://hackaday.io/project/39494-pcb-motor .
    The idea is that you have some umballanced wheel that turns with a motor.

  3. I would look for ideas from game dyiers, like this: https://lifehacker.com/build-a-diy-rumbling-gaming-chair-1765337209





share|improve this answer








New contributor




Pitagoras is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









  1. You can use a dspic to process audio, instead of arduino.

  2. For the actuator you can use something similar to the motors used in the game controllers. As this has to be small, you can even use some stepper motor similar to the ones present in old notebook floppy drives. A motor embedded in the pcb might be an idea: https://hackaday.io/project/39494-pcb-motor .
    The idea is that you have some umballanced wheel that turns with a motor.

  3. I would look for ideas from game dyiers, like this: https://lifehacker.com/build-a-diy-rumbling-gaming-chair-1765337209






share|improve this answer








New contributor




Pitagoras is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this answer



share|improve this answer






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answered 3 hours ago









Pitagoras

163




163




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Check out our Code of Conduct.











  • If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
    – Sparky256
    3 hours ago
















  • If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
    – Sparky256
    3 hours ago















If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
– Sparky256
3 hours ago




If the OP can actually program a complex DSP engine, that would be a somewhat cheap solution.
– Sparky256
3 hours ago










You Speak So Well is a new contributor. Be nice, and check out our Code of Conduct.









 

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