Hello, I am a new user in Pd.

Currently, I have been studying Pd, but I have some questions.

When I try to change frequency of sine wave, there is some unexpected sound.

To remove the sound, would you give me the solution?

Additionally, to make an exponential line, I used [exponential_curve].

But if you have a better idea, please give me recommendation.

Thank you for reading my post.

http://www.pdpatchrepo.info/hurleur/example.pd

try [line 0 1] instead of just [line].

by default, [line] only sends a output every 20ms, so it is a bit grainy. Adding the creation arguments to it forces the grain to be smaller (in this case 1ms)

you should also delete the number boxes from your object chains, as constant refreshing of the gui is going to really tax your cpu.

a better alternative to [line] would be to go into the signal domain and use [line~], but then the rest of your calculations also need to be signal-based.

oh, and a really simple way to make an exponential curve, is just to multiply a signal by itself.

so, you could simplify your whole patch to be something like:

[0, 1 5000(
|
[line~]
|\
| \
[*~]
|
[*~ 10000]
|
[osc~]

Wow, it is really simple way haha~. Thanks for your help, I also could make logarithmic curve. Thank you.