Topic: RockBox users: your opinion wanted on gain logging

[petur]

I'm implementing gain logging and would like your opinion.
(gain logging = write gain changes to a log file for use in postprocessing)

Current implementation:
- write to a logfile on every gain change
- logs time offset (in ms), left gain and right gain
- tab separated
- logfile has same name as recording but ends with .log
- file is written to disk when recording is flushed to disk or gain log buffer full
- keeps 50 gain changes in memory to reduce disk spinup

let me know what's missing/overlooked. The code is not ready so nothing to try yet.

[whatboutbob]

Good stuff mate. I assume the .log file will be in the same dir as the recording?

Do you anticipate any cpu load issues, writing wav files and .log files concurrently?

[petur]

Good stuff mate. I assume the .log file will be in the same dir as the recording?

but of course

Do you anticipate any cpu load issues, writing wav files and .log files concurrently?

I hope not. First flush audio data, then write logfile. There will be a setting to enable this of course...

[Toki]

I can only wish to have the ability to post-process the file according to this log (to make the same gain over entire file) - but I understand that it is a completely different story

[Arni99]

I don´t need it IF it shortens running time of the internal battery due to additional power consumption when writing logfiles .

[Toki]

I don´t need it IF it shortens running time of the internal battery due to additional power consumption when writing logfiles .

For some reason I believe that there will be an option to turn it off if someone wouldnt like it

[Liquid Drum]

This sounds really good. It can help see where and when the gain got turned up/down, so you could boost in post to match the rest nicely.

I'm guessing it wouldn't use too much battery life, but would be awesome to be able to turn the feature on/off.

[petur]

no worries, it will be an option, default off