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Sep 8, 2020 - 7:17:14 PM
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5843 posts since 8/7/2009

There are good number of programs that will allow you to change the pitch of a recorded tune. Most will allow you to save the changes to a new file.

This is convenient when we are trying to learn a tune and would rather not have to retune our instrument. Changing the pitch of the recording to a standard pitch would do that. Changing by cents makes it possible.

And... there are computer programs that are about 90% accurate in detecting the key of a recorded tune.

Is there a program that will not only detect the key of a recording, but will let you adjust the pitch of the recording to match the standard pitch automatically?

This would allow us to quickly build a library of tunes that could be played with the pitch of each one corrected to the standard.

Edited by - tonyelder on 09/08/2020 19:23:26

Sep 8, 2020 - 11:16:13 PM

2653 posts since 9/13/2009

I think most DAWs have various plugins/tools that could be used.

Of course... Anteres, Auto-Key, works with their Autotune; and directly into ProTools. Celemon/Melodyne probably has similar functions. Not sure how well they work, are a bit pricey; and am doubtful if any inexpensive program or plugin can detect the overall key of a recording. It's very complex to find key.

That said; for what you want doesn't need to detect key. Autotune or Melodyne and the like don't need to find key, can just correct all pitches to conform to nearest 100 cent value.  Alternatively, you simply need something to provide frequency analysis of individual note; essentially like a tuner; correlated to A440/12TET (or whatever you set), give the readout as cents. Can then just enter in the difference over the whole track.

Might be easier to adjust by ear and hand?

Sep 9, 2020 - 9:18:57 AM

Peghead

USA

1590 posts since 1/21/2009

I've got the Slow Downer. I save an original then bring it up or down to standard pitch by ear and save it as "pitch corrected. You could us a tuner but you can fine tune it over time. I make a note of how far off it was. It"s not automatic but doesn't take very long at all.

Sep 9, 2020 - 5:24:06 PM

5843 posts since 8/7/2009

I agree with both of you - there are plenty of programs that will let you change the pitch, manually. And many of those will let you save the tune with the altered pitch. And most of them are fairly easy to use.

The problem I'm trying to fix... For very many years I have been a loyal user and supporter of mTrax by Terrasofta. I'm still surprised that it never became a popular program for practicing musicians. The features of the program have been years ahead of all the other programs - still is (imo). But... I guess because it didn't become a moneymaker for the developers, the support has fell off dramatically. I've had problems and can't get support to get things fixed.

One of the features I liked was the ability to create playlists (libraries). And whatever you did to manipulate the file, slow it down, change the pitch, create a loop, use the equalizer to enhance certain frequencies, woudl be saved automatically. It would be just as you left it during your last session - without having to make the choice to save.

It became easy to have a playlist with over a hundred tunes in a key, have all those tunes with the pitch adjusted to your standard. You never had to tune your instrument to play through the list. That was my biggest reason for using the program - and I could have saved those files so that the pitch would be permanently changed for other players.

But I didn't do that. Now the program has reverted back to the demo version - and won't let me do that anymore.

I found another program that is similar - Song Surgeon v5. It will pretty much do the same things. But - I have the old libraries that have the collections of tunes in different keys. But they were never saved.

Song Surgeon has a few features that mTrax didn't have. It will tell you the tempo (bpm) and determine the key (80 - 90% accuracy). It will let you shift the pitch by 1 cent values.

It seems to me - if a program can determine the key and will allow you to make adjustments manually - then they could create a tool that will determine the exact hz signal and let you tell it what you wanted to have the program adjust the pitch to match. ie, a tune in played in the key of A, but the recording is playing A at 433hz. It would be nice to key it that you want the tune to be corrected to 440hz, and the tune would do that for you and offer to save the file and name it what you want to name it.

Seems entirely possible. That would save me a lot of time. I would be willing to buy a program that would do that - if it was reasonably priced.

Sep 10, 2020 - 7:33:45 AM

RichJ

USA

411 posts since 8/6/2013

quote:
Originally posted by Peghead

I've got the Slow Downer. I save an original then bring it up or down to standard pitch by ear and save it as "pitch corrected. You could us a tuner but you can fine tune it over time. I make a note of how far off it was. It"s not automatic but doesn't take very long at all.


Hey Peghead - Thanks for mentioning the save as pitch corrected feature of ASD. I've been using this program for several years now and did not know this could be done. But, looking at the version I have been using I don't see how to do this. There are several "Save As" options on the menu, but none give a pitch corrected option. Am I missing something obvious?

Rich

Sep 12, 2020 - 4:39:20 AM

Peghead

USA

1590 posts since 1/21/2009

Rich, pitch correction will get saved along with any of the other variables you might have adjusted. I do pitch correction first and save. I work with that file going forward.

Edited by - Peghead on 09/12/2020 04:42:33

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