[Bug]: demo toms diner: harsh sound

msalat commented 2 years ago

The type of board you are using.

Arduino ATmega328* board (UNO, Nano, etc.)

What IDE are you using?

Arduino IDE

Example(s) you have checked while hunting the bug.

[X] Demo_Toms_Diner
[X] Getting_Started
[ ] TalkieVocabularyDemo
[ ] USDistanceToVoice
[ ] Voltmeter
[ ] VoltmeterSayQ
[ ] Other - please specify below
[X] I checked, if at least one of the examples was working.

Example(s) to reproduce the issue.

[X] Demo_Toms_Diner
[ ] Getting_Started
[ ] TalkieVocabularyDemo
[ ] USDistanceToVoice
[ ] Voltmeter
[ ] VoltmeterSayQ
[ ] Other - please specify below

The library version you are working with.

[X] I use the latest Arduino library version and verified this!
[ ] I use the latest repo version (download link) and verified this!

What are the steps to reproduce this issue?

Playing this sample with this circuit grafik

What happens?

95 % of the time it sounds clear, but occasionally — and always at the same time — it sounds absolutely harsh.

The serial output which indicates the error happened.

No response

What were you expecting to happen?

clear sound as in the getting started demo

Additional context

No response

Final checklist for the bug report.

[X] I have read the README.md file thoroughly
[X] I have browsed the examples for one, that matches my use case.
[X] The title of the issue is helpful and relevant.

msalat commented 2 years ago

PS: Speaker is a visaton fr 10 hm (4 Ω, 20 W, 10 cm, Xmax ±2 mm)

msalat commented 2 years ago

4700 µF capacitor between 5 V and GND does not help.

msalat commented 2 years ago

Perhaps got such sound on my scoppy osci: grafik

msalat commented 2 years ago

I've tried the toneMeldoy example with the same audio output stage and it is much louder and clear.

ArminJo commented 2 years ago

At which second do you get the harsh sound?

I've tried the toneMeldoy example with the same audio output stage and it is much louder and clear.

Yes, the toneMeldoy example is a awesome piece of software to get this sound.

msalat commented 2 years ago

Harsh from 1.04s to 1.2s and every few seconds... (recorded from my smartphone) grafik

V205Arduino commented 1 year ago

I agree that the sound is bad. I think the problem is with the recording.

ArminJo / Talkie