rikotech8
Member level 1
I have a task to create a device that to reproduce a voice. The quality of the voice may not be good. It rather should be bad (having in mind that the device must cost efficient). Since I have non experience doing such devices I refer to you for some advises. I was googling last few hours to find how is it done. I found that there should be a microphone, low power amp, Pulse-code Modulator<--SPI-->MCU/DSP <--PWM-->Speaker (eventually some flash to store the sampled data).
The voice may have the quality of a cheap Chinese toy (this is the idea). So I think 4-bit PCM would do the job (I don't know - you say...). The song that the device will play is about 10 seconds long (not much of a flash I believe).
I will write the software. But, what ICs to choose, How much Flash should I provide. How many samples per second (approximately)?
I know it depends on the quality and the length of the song. If I achieve this quality I would be very happy:
https://www.youtube.com/watch?v=ybmEWLBkcsc
Is it possible to achieve this by using a MCU with 8-bit ADC and 5-bit DAC peripherals
Any references to a similar projects and any ideas are very much welcome. Thank you in advance.
The voice may have the quality of a cheap Chinese toy (this is the idea). So I think 4-bit PCM would do the job (I don't know - you say...). The song that the device will play is about 10 seconds long (not much of a flash I believe).
I will write the software. But, what ICs to choose, How much Flash should I provide. How many samples per second (approximately)?
I know it depends on the quality and the length of the song. If I achieve this quality I would be very happy:
https://www.youtube.com/watch?v=ybmEWLBkcsc
Is it possible to achieve this by using a MCU with 8-bit ADC and 5-bit DAC peripherals
Any references to a similar projects and any ideas are very much welcome. Thank you in advance.