RussellMc
2018-11-23 10:14:25 UTC
3rd time lucky :-)
I received the following email requesting technical advice from Paul Aspell
in the UK.
I advised him that the PICList gurus are far more likely to provide him
good advice on IIS issues that I was - and he is happy for me to post his
query on the PICList.
Can anyone advise on the matters raised?
His electronics engineer job spec attachment is available here:
https://www.dropbox.com/s/gn4mdhsgywciek9/Electronics%20Engineer.pdf?dl=0
People are welcome to contact Paul directly if desired, but I suggest:
1. A discussion here would be liable to be useful to all. Followed by
someone most appropriate talking to Paul.
2. If anyone talks to Paul directly a CC to me would be appreciated (but
not essential).
Details in his email but, in summary:
*We have a music player which is using an Onion Omega2 module. This has
I2s output.We need an I2S DAC and an Amplifier to drive a small speaker.
We’re aiming for say 3w to 12w *
*We are testing
<https://mail.google.com/mail/u/0/%E2%80%8Bhttps://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE>this
one**It uses aMAX08357 chip*
*We would like to have*
*-Suggestions for a single chip module like the MAX chip above which*
* Can do a higher output – e.g. 10w*
* Is available at a reasonable price in quantity of say 500*
* -Suggestions for a two-chip solution comprising*
* An I2S DAC** A good quality amplifier circuit*
*While I have no I2S experience, I suspect that a wander through eg
Digikey's catalog would be a good start.However, others may already know
this area well.*
*ORIGINAL:*
---------- Forwarded message ---------
From: Paul Aspell <***@eazl.co.uk>
Date: Thu, 22 Nov 2018 at 03:52
Subject: oobeedoo for dementia
To: <***@gmail.com>
Dear Russel,
Dear Sirs,
Just briefly, I have been running Eazl CIC <http://www.artinacorner.co.uk/>a
social enterprise based in Ware in Hertfordshire for the last 5 years
raising awareness and funding for good causes.www.artinacorner.co.uk
Through this time I’ve met some amazing people/companies that have and
continue to inspire me, all of which has taken me to a project outside of
Eazl that comes from the heart. It's inspired by my dear Mum Joyce (94) who
has severe dementia. She is safe and happy in a home with 24/7 care. We
talk everyday on the phone and I have the most beautiful moments when I'm
with her.
On one visit to her I played her some of her favourite music. I created
a playlist called 'Mum Songs'. I was amazed and so moved by her response as
she listened and sung to the music. She was smiling and singing all the
words. It was so moving.
She even kicked off her slippers, closed her eyes and started dancing under
the table to the rhythm of the music. I think it was Glenn Miller playing
In the Mood.
I found my Mum in those moments ...so beautiful, It was an emotional and
now I know a very inspiring moment for me.
As I left her on that day I had an idea.
I thought my Mum loves music but there is no any way that she can operate a
CD, radio, iPad, Pod, or any of the voice activated speakers like Amazons
Alexa, Echo or Googles home, Sonos etc... to play her music.... so I had an
idea for a simple one touch music box. Which is filled with the original
versions of songs that she loves.
We are now working with the Alzhemiers Society to test them early part of
next year.
A component of the speaker/music box is the Omega2 module.
My amazing team have asked the following and I wondered if you can help.
*Spec - I2S / Amplifier*
*We have a music player which is using an Onion Omega2 module. This has
I2s output.We need an I2S DAC and an Amplifier to drive a small speaker.
We’re aiming for say 3w to 12w – we’re*
*not sure of the actual amplifier we need*
*We are testing this one
-https://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE
<https://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE>*
*It uses aMAX08357 chip*
*We would like to have*
*-Suggestions for a single chip module like the MAX chip above which*
*oCan do a higher output – e.g. 10w*
*oIs available at a reasonable price in quantity of say 500*
*-Suggestions for a two-chip solution compromising*
*-An I2S DAC*
*-A good quality amplifier circuit*
Would this be something you could help us with? + see attached.
I look forward to hearing from you.
Best wishes,
Paul
Paul Aspell | CEO | Eazl CIC
M: +44 (0) 7525 918 350
www.artinacorner.co.uk
www.fitzroviamural..org <http://www.fitzrovia>
www.eazl.co.uk
<https://www.facebook.com/Eazl-UK-468083346601467/>
<https://www.instagram.com/eazluk/>
<https://twitter.com/EazlUK>
<https://www.youtube.com/channel/UCSibvX0Ohh2huYfYQz1mFrA>
www.artinacorner.co.uk | www.fitzroviamural.or
<http://www.fitzroviamural.org>g | www.eazl.co.uk/art-in-a-box/
This message and attachments are intended solely for the use of the
addressee and may contain information that is privileged, confidential or
otherwise exempt from disclosure under applicable law. If you are not the
intended recipient or agent thereof responsible for delivering this message
to the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited. If
you have received this communication in error, please notify the sender
immediately by telephone and with a "reply" message.
Thank you for your cooperation.
I received the following email requesting technical advice from Paul Aspell
in the UK.
I advised him that the PICList gurus are far more likely to provide him
good advice on IIS issues that I was - and he is happy for me to post his
query on the PICList.
Can anyone advise on the matters raised?
His electronics engineer job spec attachment is available here:
https://www.dropbox.com/s/gn4mdhsgywciek9/Electronics%20Engineer.pdf?dl=0
People are welcome to contact Paul directly if desired, but I suggest:
1. A discussion here would be liable to be useful to all. Followed by
someone most appropriate talking to Paul.
2. If anyone talks to Paul directly a CC to me would be appreciated (but
not essential).
Details in his email but, in summary:
*We have a music player which is using an Onion Omega2 module. This has
I2s output.We need an I2S DAC and an Amplifier to drive a small speaker.
We’re aiming for say 3w to 12w *
*We are testing
<https://mail.google.com/mail/u/0/%E2%80%8Bhttps://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE>this
one**It uses aMAX08357 chip*
*We would like to have*
*-Suggestions for a single chip module like the MAX chip above which*
* Can do a higher output – e.g. 10w*
* Is available at a reasonable price in quantity of say 500*
* -Suggestions for a two-chip solution comprising*
* An I2S DAC** A good quality amplifier circuit*
*While I have no I2S experience, I suspect that a wander through eg
Digikey's catalog would be a good start.However, others may already know
this area well.*
*ORIGINAL:*
---------- Forwarded message ---------
From: Paul Aspell <***@eazl.co.uk>
Date: Thu, 22 Nov 2018 at 03:52
Subject: oobeedoo for dementia
To: <***@gmail.com>
Dear Russel,
Dear Sirs,
Just briefly, I have been running Eazl CIC <http://www.artinacorner.co.uk/>a
social enterprise based in Ware in Hertfordshire for the last 5 years
raising awareness and funding for good causes.www.artinacorner.co.uk
Through this time I’ve met some amazing people/companies that have and
continue to inspire me, all of which has taken me to a project outside of
Eazl that comes from the heart. It's inspired by my dear Mum Joyce (94) who
has severe dementia. She is safe and happy in a home with 24/7 care. We
talk everyday on the phone and I have the most beautiful moments when I'm
with her.
On one visit to her I played her some of her favourite music. I created
a playlist called 'Mum Songs'. I was amazed and so moved by her response as
she listened and sung to the music. She was smiling and singing all the
words. It was so moving.
She even kicked off her slippers, closed her eyes and started dancing under
the table to the rhythm of the music. I think it was Glenn Miller playing
In the Mood.
I found my Mum in those moments ...so beautiful, It was an emotional and
now I know a very inspiring moment for me.
As I left her on that day I had an idea.
I thought my Mum loves music but there is no any way that she can operate a
CD, radio, iPad, Pod, or any of the voice activated speakers like Amazons
Alexa, Echo or Googles home, Sonos etc... to play her music.... so I had an
idea for a simple one touch music box. Which is filled with the original
versions of songs that she loves.
We are now working with the Alzhemiers Society to test them early part of
next year.
A component of the speaker/music box is the Omega2 module.
My amazing team have asked the following and I wondered if you can help.
*Spec - I2S / Amplifier*
*We have a music player which is using an Onion Omega2 module. This has
I2s output.We need an I2S DAC and an Amplifier to drive a small speaker.
We’re aiming for say 3w to 12w – we’re*
*not sure of the actual amplifier we need*
*We are testing this one
-https://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE
<https://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a?variant=21696217799&gclid=CjwKCAiAodTfBRBEEiwAa1haukBCLzZlmi--ojp1r_eC5VriBHjlBUrBOvFURmo-O8TnPQXXKgaXBxoCLkIQAvD_BwE>*
*It uses aMAX08357 chip*
*We would like to have*
*-Suggestions for a single chip module like the MAX chip above which*
*oCan do a higher output – e.g. 10w*
*oIs available at a reasonable price in quantity of say 500*
*-Suggestions for a two-chip solution compromising*
*-An I2S DAC*
*-A good quality amplifier circuit*
Would this be something you could help us with? + see attached.
I look forward to hearing from you.
Best wishes,
Paul
Paul Aspell | CEO | Eazl CIC
M: +44 (0) 7525 918 350
www.artinacorner.co.uk
www.fitzroviamural..org <http://www.fitzrovia>
www.eazl.co.uk
<https://www.facebook.com/Eazl-UK-468083346601467/>
<https://www.instagram.com/eazluk/>
<https://twitter.com/EazlUK>
<https://www.youtube.com/channel/UCSibvX0Ohh2huYfYQz1mFrA>
www.artinacorner.co.uk | www.fitzroviamural.or
<http://www.fitzroviamural.org>g | www.eazl.co.uk/art-in-a-box/
This message and attachments are intended solely for the use of the
addressee and may contain information that is privileged, confidential or
otherwise exempt from disclosure under applicable law. If you are not the
intended recipient or agent thereof responsible for delivering this message
to the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited. If
you have received this communication in error, please notify the sender
immediately by telephone and with a "reply" message.
Thank you for your cooperation.
--
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