Why the right music is the key to perfect sound in the car
Setting up a car's sound system isn't just about connecting speakers and boosting the bass. 70% of the sound quality depends on which tracks you use for testing and adjustments. Professional sound directors and car audio engineers will never try to adjust the equalizer βby eyeβ - they rely on specially selected compositions that reveal all the nuances of the sound system.
The problem is that 90% of drivers use random tracks from a playlist to tune in - from AC/DC up to Bach. It's like trying to calibrate headlights using the moon instead of a special stand. The result: overdriven highs, booming bass, unintelligible vocals, and listening fatigue after just 20 minutes. This article will help you avoid common mistakes and learn how to choose music that will turn your car into a concert hall.
Top 5 criteria for choosing music for setting up acoustics
Not all music is suitable for testing a sound system. Here are the key parameters to focus on:
- π΅ Wide frequency range: The track should cover the spectrum from 20 Hz (sub-bass) to 20 kHz (air highs). It is ideal if the composition contains moments with an emphasis on specific frequencies.
- π€ Clean vocals without processing: Auto-tune, reverb and other effects hide the real capabilities of acoustics. Live recordings without studio "gloss" are best suited.
- π₯ Dynamic range: The track should alternate between quiet and loud passages. This helps identify distortion at high volumes and tests the sensitivity of the system.
- πΈ Instrumental variety: guitars, pianos, drums, strings - each instrument tests different aspects of sound. For example, jazz drums Excellent test of the subwoofer's reaction speed.
- π High recording quality: format not lower
FLAC 16/44.1orWAV. MP3 with a bitrate of 128 kbps will distort the tuning results.
It is important to understand that Even professional test tracks cannot replace acoustic measurements using a microphone and a program like REW (Room EQ Wizard). But for 95% of car owners, correctly selected music will give results no worse than those of many βgarageβ masters.
The best music genres for testing car audio
Each musical genre reveals the capabilities of the sound system in its own way. Here's what the experts recommend:
| Genre | What does it test? | Examples of performers | Cons |
|---|---|---|---|
| Acoustic jazz | Balanced mid frequencies, natural sound | Diana Krall, Pat Metheny, Esperanza Spalding | Weak bass, doesn't test subwoofer power |
| Classical music (orchestra) | Dynamic range, surround sound | Ludovico Einaudi, Hans Zimmer (soundtracks) | Requires high-quality recording, difficult for beginners |
| Progressive rock | Instrument separation, high frequency clarity | Pink Floyd, Dream Theater, Porcupine Tree | May overload tweeters at high volumes |
| Electronics (IDM, Drum'n'Bass) | Subwoofer speed, bass clarity | Aphex Twin, Noisia, Squarepusher | Synthetic sounds mask distortion |
| Vocal music (a cappella) | Purity of mid frequencies, absence of βdirtβ in the sound | Bobby McFerrin, The Swingle Singers | Not suitable for testing low frequencies |
For comprehensive testing, it is recommended to create a playlist of tracks from different genres. For example: start with a jazz track to adjust the mids, then move to a classical orchestra to test the dynamics, and end with an electronic track to test the bass. This approach will give a complete picture of the capabilities of your speaker system.
β οΈ Attention: Never use tracks with heavy compression (for example, modern pop or EDM) for tuning. This type of music artificially βevens outβ the volume, so you won't hear the real dynamic range problems in your system.
Top 15 tracks for professional car audio tuning
These compositions are recommended by leading sound engineers and car audio engineers. All tracks are available in high quality on services Tidal, Qobuz or Apple Music Lossless:
- "Breezin'" β George Benson (jazz) - ideal for tuning midrange frequencies and vocals.
- "Bohemian Rhapsody" β Queen (rock) - tests dynamic range and instrument separation.
- "Clocks" β Coldplay (alternative) - checks treble (piano) and bass.
- "The Chain" β Fleetwood Mac (rock) is a great test for drums and bass.
- "Experience" β Ludovico Einaudi (classic) - checks spatial sound.
- "Schism" β Tool (progressive metal) - A difficult track to test instrument separation.
- "Flim" β Aphex Twin (IDM) - Tests the speed and clarity of the subwoofer.
- "Take Five" β Dave Brubeck (jazz) - ideal for tuning drums.
- "Hotel California" (live) β Eagles β tests live vocals and guitars.
- "Sultans of Swing" β Dire Straits β checks the clarity of the guitar parts.
- "The Girl from Ipanema" β Stan Getz & JoΓ£o Gilberto (bossa nova) - for tuning warm mids.
- "Around the World" β Daft Punk (electronics) - tests bass and spatial sound.
- "Black Dog" β Led Zeppelin (rock) - tests the system power at high volume.
- "Spem in Alium" β Thomas Tallis (choral music) - tests multi-channel sound.
- "Teardrop" β Massive Attack (trip-hop) - for setting up deep bass and vocals.
For convenience, create a playlist in order from the βsoftestβ tracks (jazz, classical) to the most βaggressiveβ (rock, electronic). This will help your hearing gradually adapt and identify problems at different volume levels.
Download tracks in FLAC/WAV format|Set volume to 70% of maximum|Disable all sound effects in the head unit|Close windows and doors to exclude external noise|Prepare a notebook for recording observations-->
How to listen to test tracks correctly: step-by-step setup technique
Just turning on music and twisting the equalizer knobs is not adjustment. Here is a professional technique that is used in a car audio studio:
Step 1: Check channel balance
Play a mono track (such as the vocals from "Bohemian Rhapsody") and alternately mute the left/right channels. The sound should come strictly from the center. If the vocals "shift" to the left or right, there is a problem with the balance or phasing of the speakers.
Step 2: Setting the frequency range
Use tracks that focus on specific frequencies:
- π
20-60 Hz: "Flim" - Aphex Twin (sub bass) - πΈ
60-250 Hz: "The Chain" - Fleetwood Mac (bass) - π€
250 Hz - 4 kHz: "Breezin'" - George Benson (vocals, saxophone) - πΉ
4-10 kHz: "Clocks" - Coldplay (piano) - π
10-20 kHz: "Schism" - Tool (cymbals, air frequencies)
Step 3: Dynamic Range Testing
Play "Experience" - Ludovico Einaudi at maximum volume (no distortion!). Quiet passages should remain intelligible, and loud passages should not βfall apartβ into wheezes. If you hear distortion, there is a problem with the amplifier or power supply.
Step 4: Check the surround sound
The track "Spem in Alium" - Thomas Tallis should create a "surround" sound effect, as if a choir is singing around you. If the sound is βflat,β there is a problem with the speaker placement or processor settings.
β οΈ Attention: If when testing high frequencies (10-20 kHz) you hear hissing or whistling - this is a sign clipping (overload) tweeters. Immediately reduce the volume and check the crossover settings.
Common mistakes when choosing music to tune to
Even experienced music lovers make these mistakes, which ruin all setup efforts:
- π« Using MP3 128-192 kbps: Such files lose up to 90% of information in high and low frequencies. To configure you need lossless-format
- π« Listening to familiar tracks: the brain βcompletesβ the missing frequencies from memory. Use unfamiliar music.
- π« Setting at high volume: At maximum, any system sounds worse. The optimal level is 70-75% of the maximum.
- π« Ignoring interior acoustics: Even a perfectly tuned system will sound bad in a car with an βemptyβ trunk or without sound insulation.
- π« Setting up one track at a time: Each genre explores different issues. You need at least 5-7 compositions.
Another common mistake is tuning by ear without pauses. Your ears get tired after 15-20 minutes of intense listening. Take breaks every 10 minutes to maintain objectivity.
Before setting up, warm up the speakers for 10-15 minutes at medium volume. This is especially important for subwoofers - a cold membrane sounds harsher and can be misleading when adjusting.
Advanced techniques: how professionals test acoustics
If you want to achieve studio sound, here are some secrets from sound engineers:
1. Pink noise method
Use pink noise test signals (Pink Noise) for basic channel volume adjustment. Ideally, sound should be perceived as a uniform background without accents on individual frequencies. You can download such tracks on specialized sites like AudioCheck.net.
2. Phasing test
Turn on a monaural signal (such as an announcer's voice) and invert the phase on each speaker one at a time. If the sound becomes quieter, the phasing is incorrect. This is critical for subwoofers!
3. Impulse response analysis
For this you need a microphone and a program REW. Record a pulse signal (clap or special test track) and analyze the graph. Peaks and troughs will show problematic frequencies.
4. Intermodulation distortion test
Turn on two sine waves at the same time (for example, 60 Hz and 7 kHz). In a quality system you will only hear these two frequencies. The appearance of additional tones is a sign of distortion.
How to make a test CD yourself?
To create your own test disk you will need:
1. Audio CD burning program (for example, Nero Burning ROM or ImgBurn)
2. A set of test tracks in WAV format (can be downloaded from AudioCheck.net or SoundOnSound)
3. Blank CD-R disc (it is better to use discs from Taiyo Yuden or Verbatim for minimum error level)
4. Program for the master disk (for example, CD-R Diagnostics to check the recording quality)
Record tracks with pauses of 2-3 seconds and indicate in the title of each track what frequency or parameter it tests (for example: "01_Sweep 20-20kHz.log").
How to save settings: practical tips
Setting up the acoustics is half the battle. It is important to save the result and protect it from being reset:
- π§ Take a photo of the settings head unit and amplifiers. Especially the crossover and volume parameters.
- π± Create a profile in the head unit (if supported). For example, in Pioneer or Alpine You can save custom presets.
- π Mark the position of the controls on the amplifiers with a marker or stickers. This will save you if you accidentally reset the settings.
- π΅ Save the test playlist to a separate folder on the USB drive. Sign the files with the purpose (for example, "01_Bass_Test.flac").
- π Keep a settings log in your phone notes. Indicate the date, weather conditions (humidity affects the acoustics of the cabin!) and changes.
If your head unit supports exporting settings (for example, Kenwood Excelon or Sony XAV-AX8000), be sure to save the configuration file to a separate medium. When upgrading the firmware or doing a reset, this will save you hours of re-configuration.
The ideal acoustic setup is a compromise between technical parameters and your personal preferences. Even professional systems are customized for a specific listener, and not according to abstract standards.
FAQ: Answers to frequently asked questions
Can I use Spotify to adjust my audio?
Technically possible, but highly not recommended. Even with maximum quality (320 kbps) Spotify uses compression Ogg Vorbis, which distorts high and low frequencies. Only suitable for testing lossless-services: Tidal HiFi, Apple Music Lossless, Qobuz or local files FLAC/WAV.
How long does it take to completely set up acoustics?
For beginners - from 2 to 4 hours with breaks. Professionals spend 40-60 minutes, but they have experience and special equipment. Take your time: It takes about 15-20 minutes for your ears to adapt to sound, so a quick adjustment often produces poor results.
Do I need to adjust the acoustics after replacing the speakers?
Definitely! Even if you installed speakers of the same model, their parameters may differ due to:
- Differences in membrane running-in
- Changes to interior acoustics (for example, new carpet or trunk boots)
- Variation in factory characteristics (Β±3 dB tolerance is a lot!)
The setup must be done again, even if only one speaker was changed.
Why does the sound in the cabin differ from the sound in the garage?
It's normal! The acoustics of a closed space (lounge) and open space (garage) are radically different:
- There are more reflections from glass and plastic in the cabin β the sound is βdirtierβ
- There are no resonators in the garage (like the trunk or air ducts) β the bass sounds weaker
- Temperature and humidity affect air density β the speed of sound changes
Adjust the acoustics in the conditions in which you will listen to music (i.e. in the cabin with the windows closed).
Is it possible to configure acoustics without test tracks?
It is possible, but the result will be worse. Alternative methods:
- Use announcers' voices (e.g. audiobooks) to check mid frequencies
- Enable metronome at different speeds to test clarity
- Use sounds of nature (rain, wind) to check high frequencies
However, without dedicated tracks, you won't be able to fine-tune the bass and extreme highs/lows.