Summary
LinkedIn Voice Messages let you drop a short audio note into a campaign — either one recording you make yourself or a personalized AI-generated voice message per prospect.
Who this is for
Sellers and SDRs who want their LinkedIn sequences to stand out with audio, and managers building voice-first touch patterns.
Before you start
The voice message step is a LinkedIn touchpoint, so the prospect must already be a LinkedIn connection by the time this step runs (or it must come after a connection-request step in your flow).
Your browser needs microphone permission if you plan to record in the app — you can also upload a pre-recorded audio file instead.
Recordings are capped at 60 seconds (max 01:00) — LinkedIn's own limit.
Step 1: Open your campaign and go to Touchpoints
From the Campaigns tab, open the campaign you want to edit and go to the Touchpoints section.
Step 2: Add a new step
Click Add New, choose LinkedIn, then select Voice Message. The new step is added to your workflow and the editor opens on the right.
Step 3: Pick personalized or recorded
You'll see one of two modes on the step card titled LinkedIn Voice Message:
Personalized voice messages — Alta generates a unique audio per prospect using AI. The empty state reads "Personalized voice messages will be generated by AI for each prospect." No recording needed.
Recorded once — you record (or upload) one audio that's sent to every prospect on this step.
Step 4 (Recorded mode): Choose your microphone
At the bottom of the step card, use the microphone selector to pick which input device to use. Useful if you have a USB mic or headset connected.
Step 5 (Recorded mode): Record or upload
You'll see a dashed-border empty state with two options:
Click Start Recording (microphone icon). A red blinking indicator, a live waveform, and a timer appear. Click the Stop icon when you're done. Recording stops automatically at 01:00.
Or click or upload file manually — any standard audio file works (browser file picker accepts
audio/*, e.g..mp3,.m4a,.wav,.webm).
Step 6: Review and re-record if needed
After recording or upload, the step shows an audio player you can play back. To redo, click delete on the player and start again with Step 5.
Step 7: Save
You'll see "Audio saved successfully" once the upload completes. If you get "Failed to save audio", check the network and try again.
Tips and common pitfalls
60-second cap is a hard limit. The timer auto-stops at 01:00 — write a tight script. The label Max 01:00 under the mic selector is your reminder.
Voice messages need an existing connection. LinkedIn doesn't allow voice notes to non-connections, so place this step after a connection-request step in your tree.
Pick the right mic first. If you start recording and hear nothing on playback, your default device is probably wrong — switch via the mic selector and re-record.
Personalized mode skips the recorder entirely. If you flipped to Personalized by accident, the recorder disappears — toggle back to record your own.
Use a quiet room. The waveform makes background noise obvious; record somewhere quiet and aim for steady volume.
Upload format flexibility. If you'd rather record in your favorite app (e.g. QuickTime, Voice Memos), export the audio and use or upload file manually.
Related
How to Create a Personalized Message in Alta (Katie)
LinkedIn Best Practices (cooldowns and account safety)