how to maintain bitrate of 320 kbps - using Edit Chains

[curlysue]

Hello again.

I recently discovered Edit Chains to modify the tone associated with my existing 320 kbps CBR MP3 files.

Due to the tone quality associated with a pair of wireless headphones capable of playing MP3 files (with microSD card inserted within), I want to adjust existing MP3 files by 1 semitone (minimum) to compensate for poor quality of these headphones (with no adjustment other than volume).

Edit Chains > ChangePitch > Percentage=5.946000000000 > Apply Chain . . . works perfectly . . . but converts existing 320 kbps CBR to 128 kbps.

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

Any suggestions?

Thanks in advance!

CurlySue

[steve]

@curlysue

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

There are some limitations to Chains, and one is that it does not (yet) provide a way to specify the MP3 export settings.
Fortunately there is a workaround because, when exporting MP3s with Chains, the MP3 exporter will use whatever settings were used last for MP3 export. So the workaround is: Make a dummy track (can be just one second of silence, or any imported audio file) and export it as MP3 with the settings that you require. (The dummy exported file may be deleted). Now run the Chain.

[Gale_Andrews]

@steve

@curlysue

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

There are some limitations to Chains, and one is that it does not (yet) provide a way to specify the MP3 export settings.
Fortunately there is a workaround because, when exporting MP3s with Chains, the MP3 exporter will use whatever settings were used last for MP3 export. So the workaround is: Make a dummy track (can be just one second of silence, or any imported audio file) and export it as MP3 with the settings that you require. (The dummy exported file may be deleted). Now run the Chain.

If you are using a recent version of Audacity that has the MP3 settings embedded in the window, rather than an Options… button, you don’t need to export a dummy recording. Just change the MP3 settings then Cancel.


Gale

[curlysue]

@steve

@curlysue

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

There are some limitations to Chains, and one is that it does not (yet) provide a way to specify the MP3 export settings.
Fortunately there is a workaround because, when exporting MP3s with Chains, the MP3 exporter will use whatever settings were used last for MP3 export. So the workaround is: Make a dummy track (can be just one second of silence, or any imported audio file) and export it as MP3 with the settings that you require. (The dummy exported file may be deleted). Now run the Chain.

Thanks for finding my 2nd post, Steve.

Your instructions worked PERFECTLY, Steve!

This problem is now RESOLVED.

Thank you.

CurlySue

[curlysue]

@Gale Andrews

@steve

@curlysue

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

There are some limitations to Chains, and one is that it does not (yet) provide a way to specify the MP3 export settings.
Fortunately there is a workaround because, when exporting MP3s with Chains, the MP3 exporter will use whatever settings were used last for MP3 export. So the workaround is: Make a dummy track (can be just one second of silence, or any imported audio file) and export it as MP3 with the settings that you require. (The dummy exported file may be deleted). Now run the Chain.

If you are using a recent version of Audacity that has the MP3 settings embedded in the window, rather than an Options… button, you don’t need to export a dummy recording. Just change the MP3 settings then Cancel.

Gale

Thanks for your support, Gale.

I will attempt your solution and report back later today. I should add that I was successful executing Steve’s “dummy file” suggestion (noted above).

Thanks again!

CurlySue

[Gale_Andrews]

@curlysue

@Gale Andrews

@steve

@curlysue

After looking through the Edit Chains COMMANDS, I find no option to maintain CBR or convert to 320 kbps.

There are some limitations to Chains, and one is that it does not (yet) provide a way to specify the MP3 export settings.
Fortunately there is a workaround because, when exporting MP3s with Chains, the MP3 exporter will use whatever settings were used last for MP3 export. So the workaround is: Make a dummy track (can be just one second of silence, or any imported audio file) and export it as MP3 with the settings that you require. (The dummy exported file may be deleted). Now run the Chain.

If you are using a recent version of Audacity that has the MP3 settings embedded in the window, rather than an Options… button, you don’t need to export a dummy recording. Just change the MP3 settings then Cancel.

Gale

Thanks for your support, Gale.

I will attempt your solution and report back later today. I should add that I was successful executing Steve’s “dummy file” suggestion (noted above).

No need to change it, unless you want to change the bit rate again. I am just saying that if the dialog looks like this:

then you don’t need the annoying step of exporting a dummy file.


Gale

[curlysue]

@Gale Andrews

@curlysue

@Gale Andrews

@steve

@curlysue

SNIP SNIP SNIP (for brevity) Gale

Thank you for the additional support and instruction, Gale.

CurlySue