Real Time Varispeed Sound Quality in Samp & WhichSound Forge Version?

gregory-battaglia wrote on 3/10/2025, 11:23 AM

This probably sounds silly but there’s lots of my favorite music which I find can sound more enjoyable when using a pitch or varispeed control to reduce the tempo to between 3 and 7%; sometime as much as ~ 9%-even though the pitch is not preserved.

Circa 2010, someone gifted me Samplitude PRO X, though which I only used for applying real time pitch down shifting when playing my rips of CD tracks. But that was on an old Windows XP desktop and I would need to have it on my Windows 10 HP ZBook. I still have the Pro X product key to download it but don’t want to risk that old version not working and then having to uninstall it and thereby losing that big block of non-rewritable storage space on my system SSD drive.

Samplitude is notorious for its steep learning curve but at least I was able to find and use the real time pitch control knob from its transport control interface easily enough.

Having used Pro X forever, it’s tempting to go back and get the new version, assuming the varispeed's easily accessible. Samplitude’s varispeed always sounded very transparent to me. But is that same sound quality shared among all versions of Sound Forge, such as https://www.magix.com/us/music-editing/sound-forge/sound-forge-audio-cleaning-lab/ ?

I doubt that most here would have much need for a tool like real time varispeed, especially since it's not intended to preserve pitch while changing the tempo.

But do both Samplitude and Sound Forge Audio Cleaning have a real time "tape deck like" varispeed slider in the transport window that has zero impact on sound quality?

Comments

SP. wrote on 3/10/2025, 11:06 PM

@gregory-battaglia You can also change the tempo in Samplitude by simply adding tempo markers throughout your track.

I'm pretty sure internally Samplitude is using Zplane Elastique and basic resampling for real-time stretching and pitchshifting, so nothing special since a lot of DAWs are using Zplanes algorithms. Since Audio Cleaning Lab is based on Samplitude I suspect it uses the same algorithms.

I don't understand what you mean that your SSD isn't rewritable. Each cell in an SSD is rewriteable easily tens of thousand of times. This is enough for a decade of usage and more. Modern Windows 10 and 11 writes to the SSD all the time via it's background tasks. That's why it's almost unusable if it is installed on HDD.

I recommend you install the free demo versions and try them out of you don't want to use your old version of Pro X.

gregory-battaglia wrote on 3/11/2025, 1:22 PM

@gregory-battaglia You can also change the tempo in Samplitude by simply adding tempo markers throughout your track.

I'm pretty sure internally Samplitude is using Zplane Elastique and basic resampling for real-time stretching and pitchshifting, so nothing special since a lot of DAWs are using Zplanes algorithms. Since Audio Cleaning Lab is based on Samplitude I suspect it uses the same algorithms.

I don't understand what you mean that your SSD isn't rewritable. Each cell in an SSD is rewriteable easily tens of thousand of times. This is enough for a decade of usage and more. Modern Windows 10 and 11 writes to the SSD all the time via it's background tasks. That's why it's almost unusable if it is installed on HDD.

I recommend you install the free demo versions and try them out of you don't want to use your old version of Pro X.

Aren’t SSDs “write once” storage devices, like USB flash drives? Google AI says, “Before writing new data, SSDs must erase the existing data in a block-and they can only write to blank pages”.

But don’t SSDs have only a limited number of these “write once” blank pages?

HDDs write, read and erase data on the space of a magnetically coercive platter(s).

And HDDs can’t erase and re-write to the same space indefinitely, unlike SSDs?

Of course, HDDs have their drawbacks as being much more prone to data loss if hit with high physical shocks, or other suffer internal electro-mechanical malfunctions or if exposed to high external magnetic fields. And, like SSDs, data loss may occur if not re-energized over long periods. That’s why my standalone NAS and file backup routines use a combination of SDDs and HDDs.

But the current system drives on my desktop and laptop pcs are SSDs. So, that’s why I’ve long endeavored to avoid loading all but program files on them.

Regarding my old copy of Samplitude, it’s actually Pro X Suite. So, even when I installed it on my ancient Dell desktop back in 2014, since its system HDD was only ~ 60 GB, I took care to avoid loading all of those libraries of sounds and virtual instruments which I never have use for anyway.

I have my serial number and original email address and password; registration date: 08/11/2014

But how can I verify that this old version will run on my Windows 10 HP Fury 15 ZBook without any problems?

 

johnebaker wrote on 3/11/2025, 2:41 PM

@gregory-battaglia

Hi

. . . . Aren’t SSDs “write once” storage devices, like USB flash drives? . . . .

No, for an SSD which has Windows installed on them Windows constantly reads and writes various support files needed for it to function and support programs for reading/writing files to the SSD.

. . . Google AI says, “Before writing new data, SSDs must erase the existing data in a block-and they can only write to blank pages” . . . .

SSDs data storage cells are used following the same 'rules' as the hard drives magnetically coercive platter, ie using / reusing data blocks/storage cells that are free or have been flagged as deleted.

. . . . But don’t SSDs have only a limited number of these “write once” blank pages? . . . .

SSDs use a form of flash memory to which data is written, transferred, and erased electronically and silently, there are no moving mechanical parts. They do not lose the data when the power is off, unlike computer RAM memory,

They do have a number read/write cycles before possible failure of a 'storage cell' may occur. However, this depends on how much data is written per day and the total amount of data written.

For personal use you can expect a SSD drive to last up to 10 years.

. . . . current system drives on my desktop and laptop pcs are SSDs. So, that’s why I’ve long endeavored to avoid loading all but program files on them. . . . .

My computer has 2 SSD drives one for Windows and programs, the second is the 'work disc'. I also have 3 hard drives fitted internally for backups and longer term storage of 'finished' projects.

In the event of a failure with the Windows/programs 'system' SSD, I can restore the drive to full working again usually within 24 hrs taking into account obtaining a new SSD drive. I backup the system drive regularly with 'imaging software'.

The only write once storage devices used by computers are CD (CD-R) , DVD (DVD-R/+R) and Blu-ray (BD-R) discs.

. . . . how can I verify that this old version will run on my Windows 10 HP Fury 15 ZBook without any problems? . . . .

If the old software was running on Windows 8, then there should be no issue on Windows 10, Windows 11 is a different matter.

John EB
Forum Moderator

Last changed by johnebaker on 3/11/2025, 2:43 PM, changed a total of 1 times.

VPX 16, Movie Studio 2025, and earlier versions 2015 and 2016, Music Maker Premium 2024.

PC - running Windows 11 23H2 Professional on Intel i7-8700K 3.2 GHz, 16GB RAM, RTX 2060 6GB 192-bit GDDR6, 1 x 1Tb Sabrent NVME SSD (OS and programs), 2 x 4TB (Data) internal HDD + 1TB internal SSD (Work disc), + 6 ext backup HDDs.

Laptop - Lenovo Legion 5i Phantom - running Windows 11 24H2 on Intel Core i7-10750H, 16GB DDR4-SDRAM, 512GB SSD, 43.9 cm screen Full HD 1920 x 1080, Intel UHD 630 iGPU and NVIDIA GeForce RTX 2060 (6GB GDDR6)

Sony FDR-AX53e Video camera, DJI Osmo Action 3 and Sony HDR-AS30V Sports cams.

SP. wrote on 3/11/2025, 2:42 PM

@gregory-battaglia You can download Samplitude from here https://www.magix.com/int/support/pro-audio-downloads/ and try it on your system. If it isn't working correctly you can simply uninstall it again. This will free up the space on your SSD. You can also change the directories during the installation and install Samplitude on another storage device.

Technically, the computer will try to use all storage cells equally, so if you delete Samplitude Pro X, the storage will be marked as deleted but not automatically overwritten. This can happen sooner or later or never. It can very well be, that the computer will first use storage cells which are currently free and unused. Maybe that is why you are thinking, that the SSD will fill up? This is done so you don't only have wear and tear on the first half of your SSD in case you never fill it up more than 50%.

gregory-battaglia wrote on 3/11/2025, 3:21 PM

@gregory-battaglia You can download Samplitude from here https://www.magix.com/int/support/pro-audio-downloads/ and try it on your system.

That's where I can find and download my old copy of Pro X?

But if for some reason I can't download it or won't install without errors, can I use my product serial number to get the new version of Pro X at the lower upgrade price?

 

 

SP. wrote on 3/11/2025, 3:49 PM

@gregory-battaglia Yes, you should be able to get the price reduced upgrade to Pro X8. The Magix website will check your user account for an older version if you buy an upgrade. Since you already have Pro X registered, it should work fine.

You also don't need to have Pro X installed. Pro X8 will install and work without Pro X. If you want, you can also install the free trial version of X8 and try it for 30 days.

gregory-battaglia wrote on 3/12/2025, 9:15 AM

Much of the time that I open Samplitude it will be simply to play a WAV file and to pitch shift it down a bit. Regardless of the "theme" (e.g. "skin"?) you choose, when you open a WAV file does the transport window always immediately open? If not, what steps to open it?

And which theme name to have the pitch control always present inside of the transport window (like it was in my 2014 Pro X version)?

And how to turn the transport's pitch control from a knob to a slider-and how to save that change?

With Pro X loaded on my laptop, and being on the road, I sometimes won't have access to a DAC for outputting audio and controlling its the levels externally. Does the transport window have an output level slider for me to control the laptop's speaker level?

And is there a way to somewhat expand the size of the slider for easy mouse grabbing?

But when I want to instead feed the mono or stereo track to a DAC via USB and use the DAC’s remote to control output levels, in order to avoid bit loss which if any settings in Pro X do I need to enable/disable?

 

gregory-battaglia wrote on 3/21/2025, 5:19 PM

This version of Samplitude Pro X, ten years newer than my version, doesn't show the pitch control slider in the transport window. https://www.pcmag.com/reviews/magix-samplitude If that slider is not in the transport window for my auditioning session next week I'll be screwed. How can I make the trial version show that pitch slider?

SP. wrote on 3/22/2025, 1:09 AM

@gregory-battaglia Have you tried right clicking on the scrub control in the transport window?

gregory-battaglia wrote on 3/23/2025, 5:05 PM

@gregory-battaglia Have you tried right clicking on the scrub control in the transport window?

Can you please post a screenshot of that? When you do click on whatever does it show an actual pitch control % slider in the transport window, like my circa 2008 Pro X version had?

SP. wrote on 3/23/2025, 5:10 PM

@gregory-battaglia Check the PDF manual for the Varipitch/Varispeed (page 72) This is how it works in X8:

gregory-battaglia wrote on 3/23/2025, 5:54 PM

Why do i get eyestrain from viewing this forum but never here https://www.diyaudio.com/community/threads/beyond-the-ariel.100392/page-722#post-5043994

or here https://www.avsforum.com/threads/sony-bravia-a95l-qd-oled-discussion-thread-no-price-talk.3269176/page-642#replies ?

Even when zooming in via Ctrl and +, that window you posted is impossible to view.

Please post a link to view pages of that pdf manual from the Magix Support website. Thanks.

 

SP. wrote on 3/23/2025, 6:20 PM

@gregory-battaglia Simply click on the screenshot. No need to zoom in.

Manuals are available via the Help menu inside Samplitude or here: https://www.magix.com/us/support/pro-audio-downloads/

gregory-battaglia wrote on 3/23/2025, 9:25 PM

@gregory-battaglia Simply click on the screenshot. No need to zoom in.

 

I tried that. The image is too small, and Ctrl + only makes it smaller; supposed to do the opposite.

SP. wrote on 3/24/2025, 1:16 AM

@gregory-battaglia Do you block JavaScript in your browser? After clicking the image, it should open enlarged in an image viewer.

johnebaker wrote on 3/24/2025, 3:21 AM

 

@gregory-battaglia, @SP.

Hi

. . . . The image is too small, and Ctrl + only makes it smaller; supposed to do the opposite. . . . .

I too see the image is somewhat difficult to read, when you have clicked on the screenshot right click the image and select either:

Open image in new tab

Or Save image as . . . and open it with Windows Photos.

HTH

John EB
Forum Moderator

VPX 16, Movie Studio 2025, and earlier versions 2015 and 2016, Music Maker Premium 2024.

PC - running Windows 11 23H2 Professional on Intel i7-8700K 3.2 GHz, 16GB RAM, RTX 2060 6GB 192-bit GDDR6, 1 x 1Tb Sabrent NVME SSD (OS and programs), 2 x 4TB (Data) internal HDD + 1TB internal SSD (Work disc), + 6 ext backup HDDs.

Laptop - Lenovo Legion 5i Phantom - running Windows 11 24H2 on Intel Core i7-10750H, 16GB DDR4-SDRAM, 512GB SSD, 43.9 cm screen Full HD 1920 x 1080, Intel UHD 630 iGPU and NVIDIA GeForce RTX 2060 (6GB GDDR6)

Sony FDR-AX53e Video camera, DJI Osmo Action 3 and Sony HDR-AS30V Sports cams.

gregory-battaglia wrote on 3/24/2025, 4:36 PM

 

@gregory-battaglia, @SP.

Hi

. . . . The image is too small, and Ctrl + only makes it smaller; supposed to do the opposite. . . . .

I too see the image is somewhat difficult to read, when you have clicked on the screenshot right click the image and select either:

Open image in new tab

Or Save image as . . . and open it with Windows Photos.

HTH

John EB
Forum Moderator

Yes, thanks. https://stgwcwicomprd.blob.core.windows.net/mi-prd/140/60D/8E0C131936244E16819A8D6177E3ED68.png

So, this is the box that opens when you click on which knob in the transport window?

And all of this pitch control functionality is available in real time during playback of my WAV files in the trial version?

 

 

SP. wrote on 3/24/2025, 4:45 PM

@gregory-battaglia Maybe I don't understand you question correctly, but everything you want to know is mentioned in the screenshot of the manual.

gregory-battaglia wrote on 3/26/2025, 2:24 PM

Okay, I loaded Samplitude ProX Suite and get the varispeed working. But when playing a WAV file no audio.

I selected my laptop's RealTek audio (chip) and also hit Ctrl M , like it used to do in my 2008 version ProX Suite, which had the volume faders. Doing so here brings up the volume knob but it and that whole window is dark and says "Monitor inactive. Assign first output device for monitoring." Don't know what that means. How can I get audio to play on my laptop?

SP. wrote on 3/26/2025, 3:07 PM

@gregory-battaglia Open the program settings and click on the audio settings. Make sure you have selected an ASIO driver. Samplitude comes with Magix Low Latency driver, but I recommend you install the newest version of ASIO4ALL because Magix Low Latency is a pretty old version of ASIO4ALL. Open the ASIO driver control panel with the button next to the driver selection and enable your Realtek Audio as input and output and set the ASIO sample buffer size to a reasonable value (512 or higher). Close the control panel and set the Monitoring Mode slider to the rightmost position, Mixer FX Monitoring Hybrid Engine. Then close the program settings. You should be good to go

gregory-battaglia wrote on 3/26/2025, 5:55 PM

No, still no sound output. The level meters in the transport and volume control windows show input from the WAV file, but the message near the volume control knob still says "Monitor inactive. Assign first output device for monitoring."

SP. wrote on 3/26/2025, 5:56 PM

@gregory-battaglia Did you click on the Mon. button in the transport console to enable monitoring?

Can you upload a screenshot of your Samplitude audio settings, the ASIO settings and the Mixer?

gregory-battaglia wrote on 3/26/2025, 6:01 PM

Yes, the Mon button was enabled. What are the keyboard commands to do screenshots in Windows 10?

And how do I save them to a file to upload to you.

SP. wrote on 3/26/2025, 6:46 PM

@gregory-battaglia Windows comes with a program called Snipping Tool. Please google how to use it.

Images can be uploaded to this forum with the blue arrow icon above the response text box.