Search found 5 matches

by benjavita
Mon 2020-01-20 17:46
Forum: Microcontroller Software
Topic: VS1053 real time audio pitch
Replies: 9
Views: 617

Re: VS1053 real time audio pitch

Thank you so much Pasi, that works really well :) You say This version of the pitch shifter is very simple and low quality. There just isn't enough processing power reserve to do anything complex. (But we have a better version somewhere.) What is the better version?? And is it for the VS1053, or ano...
by benjavita
Mon 2020-01-13 16:12
Forum: Microcontroller Software
Topic: VS1053 real time audio pitch
Replies: 9
Views: 617

Re: VS1053 real time audio pitch

Thanks Pasi, It would be amazing if we could use the line in for pitch shifting without the need for an external ADC! If it's not the case, could I ask what kind of algorithm you use to do the job, is it based on FFT? Or did you develop your own algorithm? I'm asking as I'm wondering if we could try...
by benjavita
Thu 2020-01-09 15:23
Forum: Microcontroller Software
Topic: VS1053 real time audio pitch
Replies: 9
Views: 617

Re: VS1053 real time audio pitch

Hi again! I suppose if it is not possible to use the VS1053b for both encoding and encoding, I could record the PCM with another DAC connected to the esp32, and send it to the VS1053's output buffer configured with the audio pitch plugin, and that it would work the same way as when it reads mp3 file...
by benjavita
Sat 2020-01-04 13:02
Forum: Microcontroller Software
Topic: VS1053 real time audio pitch
Replies: 9
Views: 617

Re: VS1053 real time audio pitch

Hi Pasi, The plugin I was using was the "VS1003b & VS1053b Pitch Shifter Plugin" from the page at http://www.vlsi.fi/en/support/software/vs10xxplugins.html Is it different from the one in the vs1053b patches package, which I haven't tried? My aim is to transpose music so there would be a button to a...
by benjavita
Thu 2020-01-02 17:58
Forum: Microcontroller Software
Topic: VS1053 real time audio pitch
Replies: 9
Views: 617

VS1053 real time audio pitch

Hello, and happy new year :) I am pretty new to programming microchips, so please accept my apologies in advance for simple question. I am controlling the VS1053 with an ESP32, and have managed to read mp3 files from sd card (using Adafruit library), and also used the audio pitch plugin to change th...