First, make sure you've installed Splice Bridge via the Splice desktop application.
To use Bridge in your DAW, start by adding it as a plugin to a MIDI track in your project. Bridge will then automatically link your DAW to the Splice desktop app.
From there, in the Splice desktop app, you can start previewing samples, and they'll automatically match up with the tempo of your project. If your DAW is playing/recording while you preview samples in the app, the sample previews will match up to the metronome in real-time.
In the bottom-right corner of the Splice app, the "link" icon will turn blue when Bridge has been successfully connected. You can click this icon at any time to disconnect Bridge, and preview samples in the Splice app independent from your project.
With Bridge connected, you can select the key of your project, and all samples that include key data will be automatically pitch-shifted to match that key. You can also shift the pitch of a sample manually, using semitones.
You can also time-stretch the sample by half or 2x:
If the sample is classified as a loop, it continues to loop out indefinitely until you hit the stop button. To preview one-shots in time with the tempo of your project, click the note repeat button, and turn the repeat option on. From there, you can select how often you want the one-shot to repeat, from every 16th note to every 4 bars.
Once you find a sample that fits with your project, you can simply drag and drop it from Splice into your DAW. You can also click the "copy modified sample" button on the bottom menu bar to copy the sample to your clipboard, with your pitch shift/time-stretch modifications intact.
Please note: You can only use modified samples by clicking the "copy modified sample" button and pasting directly into your DAW or by dragging the modified sample from the Playbar.
If you haven't purchased the sample yet, you can also do so directly through the Splice app.