Scalpel
FeaturesCockpitPricingGuidesBlogSign inDownload
All guides
1.Getting started
  • Install Scalpel on Windows
  • Install Scalpel on a Mac
  • Activate your Scalpel licence
  • Connect Scalpel to Interactive Brokers
  • Enable the API in TWS and IB Gateway
  • The IBKR market data you need for Level 2
  • Your first 15 minutes in SIM
  • A tour of the Scalpel cockpit
  • What Scalpel is for, and what it is not
2.Desks and layout
  • Load symbols onto desks
  • Add, remove and resize desks
  • Panel settings: Level 2, tape and chart
  • Set up Scalpel for one, two or three screens
  • Desk badges: DELAYED, NO DATA, STALE and HALTED
3.Reading the market
  • How to read Level 2 in Scalpel
  • Spot iceberg orders on Level 2
  • Read the time and sales tape
  • Hear the tape: tape sound
  • The chart: timeframes, VWAP, EMAs, MACD and delta
  • The read line and the chart read bar
  • Read the players on Level 2: venues, refills and size
4.Placing trades
  • Sizing presets: shares, dollars or risk
  • Trade a fixed dollar risk with Risk (Cents)
  • Hotkeys: the defaults and how to change them
  • Entries: marketable limits, offsets and partial fills
  • Scale out and flatten
  • The order bar and orders panel
5.Stops and targets
  • How Scalpel's stops work
  • Move your stop and target on the chart
  • Breakeven and trailing stops
  • R multiples: how Scalpel measures a trade
  • Stops in the pre-market: why they cannot sit on the book
6.SIM and LIVE
  • Paper trading with SIM
  • Switch to LIVE safely
  • Commissions: pick your IBKR plan
  • Analytics: review your trading
7.Risk controls
  • Set a daily loss limit (the kill-switch)
  • Fat-finger and max-position caps
  • Why Scalpel is long-only
8.Scanner
  • Set up the IBKR scanner
  • Scan types: momentum, running up and setups
  • Scan the pre-market
  • Shares out, short interest and the squeeze score
  • Arrange scan panels
9.Intel: borrow, dilution and catalysts
  • Turn on intel
  • Check a stock for dilution before you buy
  • Borrow, short fees and squeeze setups
  • Why is it moving? Catalyst grading
  • Every intel chip, explained
  • Warrant and offering lines on the chart
  • The dilution entry guard
10.Audio and alerts
  • Voice callouts and sounds
  • Alerts and toasts
11.Settings reference
  • Settings: Connection
  • Settings: Trading
  • Settings: Stops
  • Settings: Risk
  • Settings: Sizing
  • Settings: Appearance
  • Settings: Audio
  • Settings: Hotkeys
  • Settings: Intel
  • Settings: About
12.Licence, updates and account
  • Move your licence to a new computer
  • Updates: how Scalpel updates itself
  • Try new features early: the beta channel
  • Refunds, invoices and billing
  • Earn with the referral program
  • Get help on Discord
13.Troubleshooting
  • Scalpel says Disconnected: fix the IBKR connection
  • TWS is running but not accepting the connection
  • TWS signs out when IB Gateway starts
  • Delayed data, NO DATA or STALE, or Depth unavailable
  • A LIVE order was rejected
  • An order did not fill, or only part filled
  • Scan panels say the IBKR scanner is off or waiting
  • Licence: machine limit reached
  • Licence: Scalpel cannot reach scalpeltrade.com
  • Windows protected your PC: installing Scalpel
  • An update did not install, or Scalpel went back a version
  • The chart or app window is blank
  • The order bar is greyed out
  • No callouts or tape sound
  • Intel shows nothing or SEC filings are off
14.Tips and tricks
  • 40 Scalpel tips for faster, safer scalping
  • A pre-market routine with Scalpel
  • Trade without touching the mouse
  • Settings for a small account
  • Your first week: a SIM practice plan
  • The momentum method Scalpel is built around
15.Glossary
  • Day trading glossary
Scalpelscalpeltrade.comA keyboard-first scalping cockpit for Interactive Brokers.
ProductFeaturesCockpitPricingDownloadFAQ
ResourcesGuidesTroubleshootingGlossaryBlogCompareChangelogAccountRefer a trader
CommunityDiscordYouTube
CompanyAboutFor AI agentsContactTermsPrivacyRefundsRisk

Trading involves substantial risk of loss. Scalpel is software, not investment advice. LIVE mode places real orders in your Interactive Brokers account. No warranty. Simulated or replayed results do not guarantee future results. Scalpel is independent software and is not affiliated with, endorsed by or sponsored by Interactive Brokers LLC. IBKR and TWS are trademarks of their respective owners. Figures shown on this site are demo data, not live quotes. Scalpel is sold by QUITE RIGHT LIMITED, registered in England and Wales, company number 17053815. Copyright 2026.

    All guides
    1.Getting started
    • Install Scalpel on Windows
    • Install Scalpel on a Mac
    • Activate your Scalpel licence
    • Connect Scalpel to Interactive Brokers
    • Enable the API in TWS and IB Gateway
    • The IBKR market data you need for Level 2
    • Your first 15 minutes in SIM
    • A tour of the Scalpel cockpit
    • What Scalpel is for, and what it is not
    2.Desks and layout
    • Load symbols onto desks
    • Add, remove and resize desks
    • Panel settings: Level 2, tape and chart
    • Set up Scalpel for one, two or three screens
    • Desk badges: DELAYED, NO DATA, STALE and HALTED
    3.Reading the market
    • How to read Level 2 in Scalpel
    • Spot iceberg orders on Level 2
    • Read the time and sales tape
    • Hear the tape: tape sound
    • The chart: timeframes, VWAP, EMAs, MACD and delta
    • The read line and the chart read bar
    • Read the players on Level 2: venues, refills and size
    4.Placing trades
    • Sizing presets: shares, dollars or risk
    • Trade a fixed dollar risk with Risk (Cents)
    • Hotkeys: the defaults and how to change them
    • Entries: marketable limits, offsets and partial fills
    • Scale out and flatten
    • The order bar and orders panel
    5.Stops and targets
    • How Scalpel's stops work
    • Move your stop and target on the chart
    • Breakeven and trailing stops
    • R multiples: how Scalpel measures a trade
    • Stops in the pre-market: why they cannot sit on the book
    6.SIM and LIVE
    • Paper trading with SIM
    • Switch to LIVE safely
    • Commissions: pick your IBKR plan
    • Analytics: review your trading
    7.Risk controls
    • Set a daily loss limit (the kill-switch)
    • Fat-finger and max-position caps
    • Why Scalpel is long-only
    8.Scanner
    • Set up the IBKR scanner
    • Scan types: momentum, running up and setups
    • Scan the pre-market
    • Shares out, short interest and the squeeze score
    • Arrange scan panels
    9.Intel: borrow, dilution and catalysts
    • Turn on intel
    • Check a stock for dilution before you buy
    • Borrow, short fees and squeeze setups
    • Why is it moving? Catalyst grading
    • Every intel chip, explained
    • Warrant and offering lines on the chart
    • The dilution entry guard
    10.Audio and alerts
    • Voice callouts and sounds
    • Alerts and toasts
    11.Settings reference
    • Settings: Connection
    • Settings: Trading
    • Settings: Stops
    • Settings: Risk
    • Settings: Sizing
    • Settings: Appearance
    • Settings: Audio
    • Settings: Hotkeys
    • Settings: Intel
    • Settings: About
    12.Licence, updates and account
    • Move your licence to a new computer
    • Updates: how Scalpel updates itself
    • Try new features early: the beta channel
    • Refunds, invoices and billing
    • Earn with the referral program
    • Get help on Discord
    13.Troubleshooting
    • Scalpel says Disconnected: fix the IBKR connection
    • TWS is running but not accepting the connection
    • TWS signs out when IB Gateway starts
    • Delayed data, NO DATA or STALE, or Depth unavailable
    • A LIVE order was rejected
    • An order did not fill, or only part filled
    • Scan panels say the IBKR scanner is off or waiting
    • Licence: machine limit reached
    • Licence: Scalpel cannot reach scalpeltrade.com
    • Windows protected your PC: installing Scalpel
    • An update did not install, or Scalpel went back a version
    • The chart or app window is blank
    • The order bar is greyed out
    • No callouts or tape sound
    • Intel shows nothing or SEC filings are off
    14.Tips and tricks
    • 40 Scalpel tips for faster, safer scalping
    • A pre-market routine with Scalpel
    • Trade without touching the mouse
    • Settings for a small account
    • Your first week: a SIM practice plan
    • The momentum method Scalpel is built around
    15.Glossary
    • Day trading glossary
    Guides/10. Audio and alerts

    Guide 10.1

    Voice callouts and sounds

    Beginner, 7 min read. Checked with Scalpel 1.12.8 on October 15, 2026.

    In short

    Scalpel talks you through every trade so your eyes can stay on the book. A voice confirms entries ("Filled, level two"), exits ("Out, half"), stops ("Stopped out"), take-profits, breakeven, trailing, rejections, the risk lock, mode switches, connection changes, the session times and the exit warnings, and calls out new scanner names and setups. Switch the voice, the sound effects or everything in Settings > Audio; the tape's own sound is in the Level 2 panel's cog.

    Scalping is a game of seconds. Looking away from Level 2 to check whether an order filled, or whether your stop is now at breakeven, costs you the next print. So audio in Scalpel is not decoration: every action you take with a key gets a spoken confirmation, and every event you need to react to has a sound. With the voice on, the orders panel becomes something you glance at to double-check, not something you watch.

    There are two separate audio channels:

    • Callouts: spoken words and short sound effects for trading events. Settings > Audio.
    • Tape sound: the focused desk's prints played as notes, inspired by Aggr.trade, so you can hear buyers and sellers. It lives in the Level 2 panel's cog; see guide 3.4.

    Before you start

    • Scalpel on Windows or macOS with a working output device. Audio is not played on other systems.
    • Your trading keys known (guide 4.3): most callouts confirm a key.

    Set the volume and what plays

    1. 01

      Open Settings, Audio

      Press Ctrl+, (Cmd+, on a Mac) and click Audio.

      Settings
      ConnectionTradingStopsRiskSizingAppearanceAudioHotkeysIntelAbout
      Audio cues
      Enable audio
      Sound effects
      Voice callouts
      Volume80%
      Sound effects and voice can be muted independently. Master mutes both.
      CancelApply
      Settings, Audio at the defaults: everything on, volume 80%.
    2. 02

      Choose the channels

      • Enable audio is the master switch: off silences everything, the tape included.
      • Sound effects are the short tones: blips, chimes and alarms.
      • Voice callouts are the spoken words.
      • Volume runs from 0% to 100% in 5% steps (80% by default) and sets the level of both.

      Click Apply. A soft click confirms the save.

    How voice and sound share an event. Many events have both a spoken form and a tone. Scalpel plays one, never both: the voice if Voice callouts is on, otherwise the sound effect. So turning the voice off does not leave you deaf; you hear the tone instead.

    Voices never talk over each other. If a callout arrives while another is still speaking, the new one is dropped, so you never hear two sentences at once. Sound effects mix freely. That is also why a burst of events (a fill and its stop a second later) may give you only the first callout: glance at the screen when it matters.

    Tip

    For the tape sound without the voice, keep Enable audio and Sound effects on and turn Voice callouts off. The tape needs Sound effects on to play at all.

    Everything Scalpel says

    Your orders

    WhenYou hear
    You press a buy keyA short rising blip
    The buy fills (fully or partly)"Filled, level one" to "Filled, level four": the preset that fired, Shift+1 to Shift+4
    You press Sell full, Sell half or Sell quarter (any of the bid, ask or mid keys)"Out, full", "Out, half" or "Out, quarter", at once, on the keypress
    You press Flatten All or Esc"Flattened"
    A position closes without a key (auto-flatten, a manual close in TWS)"Out, in profit", "Out, at a loss", or "Out" if it closed at exactly $0
    Ctrl+Q (Shift+Q on a Mac) cancels working orders"Cancelled"
    An order is refused (a cap, buying power, no liquidity, a buy on a halted stock, a broker rejection)"Rejected", with a red toast giving the reason

    Stops and targets

    WhenYou hear
    The working stop fires"Stopped out"
    The catastrophe net fires"Catastrophe stop"
    The take-profit fills"Take profit"
    B moves the stop to breakeven"Breakeven"
    Shift+T turns trailing on or off"Trailing" or "Trail off"

    A stop-out or take-profit plays its own callout instead of "Out, at a loss" or "Out, in profit", so you always know which level closed you out. Stops are covered in guide 5.1.

    Risk, mode and connection

    WhenYou hear
    The daily loss limit trips the RISK LOCK"Risk limit hit. Entries blocked."
    You lift the lock with Resume trading, or it clears"Risk cleared."
    You switch MODE to SIM or LIVE (in the header or in Settings > Trading)"Sim mode activated." or "Live mode activated."
    Scalpel connects to TWS or IB Gateway"Connected."
    The connection drops"Connection lost." and an amber toast

    The trading day

    As the New York clock crosses each boundary while Scalpel is running:

    Time (ET)You hear
    04:00, the pre-market opens"Pre-market is open. Good luck!"
    07:00"Mid-morning open."
    09:30, the regular session opens"The market is open. Good luck out there!"
    16:00, the regular session closes (13:00 on a half day)"The market is closed. Nice work today!"

    Starting Scalpel in the middle of a session does not announce it; only crossing the boundary does. The 07:00 call is skipped on weekends and market holidays.

    Exit warnings while you hold a long

    WhenYou hear
    The 1-minute chart shows a bull trap: a poke above the recent high that closed back under it"Long, weakening." and an amber toast
    Selling your whole position into the bids on screen would slip 0.6% or more"Thin bids. Exit carefully." and a red toast
    A financing filing or an offering headline lands on a symbol you hold"Long, weakening." and a red toast

    The first two can be switched off in the Level 2 panel's cog: Exit alert (long weakening) and Thin bid exit warning. Each fires once when the condition starts, and again only after it has cleared and at least 12 seconds have passed.

    Level 2 settings
    ...
    Summary bar
    Header quote
    Inferred read
    Show tape column
    Exit alert (long weakening)
    Thin bid exit warning
    The Level 2 settings (an excerpt): the two exit warnings, both on by default.

    These are warnings, not predictions. The bull trap read was the one chart pattern that held up when replayed over recorded sessions, and even then only for the next minute or so (guide 3.6).

    The scanner

    WhenYou hear
    A new name joins the IBKR scanner list"New gainer"
    A name makes a new high of day on the momentum scan"New mo-mo"
    A new name on Running up"New runner"
    A setup on the Setups scan"Gap and go", "Micro pullback", "Breaking highs" (a high-of-day break), "Bull flag", "Flat top" or "On a run" (a long green run)

    Scanner callouts only come from scan panels that are open on a desk, with the scan's bell on (Alert on new entry in the panel's cog). The scan bell sounds at most once every 1.5 seconds, however many names arrive at once, and each alert also shows a toast you can click to load the symbol. See guide 8.2.

    Sounds without words

    Loading a symbol, a halt (a warning tone) and its resumption, a market-data error, the other intel alerts, a held-back buy from the dilution entry guard, saving Settings, resetting SIM, and opening or closing a window each have a short tone and no voice.

    Nothing plays while the launch splash is up, and fills and closes restored just after a mode switch are not announced, so a restart or a switch never replays old trades.

    What can go wrong

    • No sound at all. Check Enable audio and the volume in Settings > Audio, then your system output device. See guide 13.14.
    • Tape sound is silent but callouts work. Sound effects is off, or the tape sound is off in the Level 2 cog.
    • A callout was skipped. Another voice was still speaking. The toast and the orders panel always have the full story.

    Questions

    Can I turn off the voice but keep the sounds?
    Yes. Turn Voice callouts off in Settings > Audio. Every event that has a voice plays its sound effect instead.
    Can I change what the voice says?
    No. The callouts are fixed recordings, kept short so they finish before the next event.
    Why did I not hear the stop-out?
    Either the voice was busy with another callout, which drops the newer one, or audio was off. The red toast and the closed trade in the orders panel always show it.
    Does Scalpel announce scanner alerts for scans I have closed?
    No. Only scan panels open on a desk announce, and only while that scan's bell is on.
    Is tape sound part of the callouts?
    No. Tape sound is set in the Level 2 panel's cog and plays the focused desk's prints as notes. It does need Enable audio and Sound effects on in Settings > Audio.

    Related guides

    Guide 3.4Hear the tape: tape soundHear the tape, inspired by Aggr.trade: buys in the right ear, sells in the left, block trades by their shape. Set the big print value, gate and volume.Guide 10.2Alerts and toastsEvery toast and alert Scalpel shows, from fills and rejections to dilution, catalyst, borrow and connection alerts: what each colour means and what to do.Guide 11.7Settings: AudioScalpel's Audio tab: the master switch, sound effects, voice callouts and volume, what each one mutes, and where tape sound is switched on instead.
    Previous: 9.7The dilution entry guardNext: 10.2 Alerts and toasts
    Practice in SIM, against the live book.A lifetime license, every update included, with a 7-day refund guarantee.Ask in DiscordGet Scalpel
    Sign in