Sony Walkman Signature Sound Settings for Hi-Res Audio
To get the most out of high-resolution audio on a Sony Walkman Signature Series player, you should change the sound settings to bypass all processing: set Direct Source to On and EQ/effects to Off, then adjust the Digital Filter to your preference. These models (such as the NW-WM1ZM2 and NW-WM1AM2) are designed to deliver a pure, unaltered signal path, and the stock settings often add subtle coloration that masks the detail high-resolution files are meant to reveal. Below is a detailed guide to the settings that matter, how they interact, and which ones to change for the cleanest playback.
What the Signature Series Sound Settings Actually Do
The Signature Series Walkman players include a dedicated sound settings menu that controls the digital and analog signal path. The key options are:
- Direct Source – When On, it bypasses the equalizer, volume normalization, and most DSP (digital signal processing) effects, sending the audio straight to the amplifier. When Off, it enables the other sound adjustments.
- Equalizer (EQ) – A 10-band graphic EQ that adjusts frequency response. It is disabled when Direct Source is On.
- DSEE Ultimate – Sony’s upscaling algorithm that attempts to restore high-frequency detail lost in compressed audio. It is not needed for true hi-res files (e.g., 24-bit/96kHz FLAC) because the detail is already present.
- Dynamic Normalizer – Evens out volume differences between tracks. It can subtly alter dynamics and is best left Off for hi-res.
- Digital Filter – Controls the roll-off of ultrasonic frequencies above the audible range. Options include Standard, Slow, Fast, and Low-pass. This setting remains active even with Direct Source On.
- Vinyl Processor – Adds a simulated analog warmth and surface noise. It is a creative effect, not a fidelity tool.
Why Direct Source Is the First Setting to Change
For high-resolution audio, the goal is to hear the recording as the engineer intended. The Signature Series hardware uses high-quality components like the S-Master HX digital amplifier and high-purity capacitors, which are designed to handle the full frequency range without needing software correction. Enabling Direct Source disables the EQ and other effects that can introduce phase shifts, intermodulation distortion, or simply mask fine details in the treble and soundstage. Most audiophiles and reviewers agree that Direct Source On is the default for critical listening.
Digital Filter: The One Setting You Should Experiment With
Even with Direct Source On, the Digital Filter remains active. It shapes the ultrasonic frequencies above 20kHz, which can affect the transient response of the audible range. The options are:
- Standard – A gentle roll-off that balances time-domain and frequency-domain performance. This is a safe default.
- Slow – Slower roll-off, which can produce a more natural impulse response but may introduce slight aliasing in theory. Some users find it sounds more “open.�
- Fast – Steeper roll-off, which reduces aliasing but can cause pre-ringing on sharp transients. Some find it sounds more “precise.�
- Low-pass – Applies a low-pass filter at 40kHz, which removes the highest ultrasonic content. This can reduce intermodulation distortion in some amplifiers.
There is no universally “correct� choice; it depends on your headphones and hearing. Start with Standard, then try Slow and Fast on a track with cymbals or percussion. Choose the one that sounds most natural to you.
How to Change the Settings Step by Step
On the Walkman Signature Series (running Android-based firmware), navigate to the settings as follows:
- Open the Music Player app and start playing a track.
- Swipe down from the top of the screen to open the notification panel, then tap Sound (or go to Settings > Sound from the home screen).
- Tap Direct Source and set it to On. This will grey out the EQ and other effects.
- Still under Sound, tap Digital Filter and choose your preference (Standard, Slow, Fast, or Low-pass).
- If you want to use EQ, turn Direct Source Off, then adjust the 10-band EQ. But note that this adds processing.
If you have a dedicated high-resolution audio player app (like the preinstalled “Music� app), the same settings apply globally to all apps.
Common Mistakes and Misconceptions
One common mistake is leaving DSEE Ultimate On when playing hi-res files. DSEE is designed for lossy formats like MP3 or AAC; applying it to a 24-bit/96kHz FLAC can actually degrade the signal by adding artificial harmonics. Similarly, the Dynamic Normalizer should be Off because it compresses the dynamic range, which is the opposite of what hi-res audio promises.
Another misconception is that the Vinyl Processor adds warmth without downsides. It actually adds noise and distortion, which some may enjoy for certain genres, but it is not a fidelity enhancer.
Finally, don’t forget to check the Volume Normalization setting in the Android system settings (not the Walkman app). If it’s On, it can interfere with the Direct Source path.
Comparing Direct Source vs. EQ for Different Headphones
If you use highly neutral headphones (like studio monitors), Direct Source is almost always the best choice. If your headphones have a strong frequency response deviation (e.g., boosted bass or recessed mids), a gentle EQ correction might help. However, the Signature Series is designed to be transparent, and the internal amplifier is voiced to pair well with a wide range of headphones. For most users, the best approach is:
- Start with Direct Source On and Digital Filter Standard.
- Listen to a few reference tracks you know well.
- If you feel the sound is too bright or too dull, try a different Digital Filter before touching the EQ.
- If you still need EQ, make small adjustments (±2dB) and avoid boosting above +3dB to prevent clipping.
Frequently Asked Questions
Q: Does Direct Source disable the high-resolution audio output?
No. Direct Source only bypasses DSP effects; it does not change the file resolution or the digital-to-analog conversion. The player still outputs the full resolution of the file (e.g., 24-bit/96kHz) to the amplifier.
Q: Should I use DSEE Ultimate for 24-bit/96kHz FLAC files?
No. DSEE Ultimate is for restoring lost detail in compressed audio. For true hi-res files, it adds unnecessary processing that can alter the original sound. Keep it Off.
Q: What is the best Digital Filter setting?
There is no single best. Standard is the safest. Try Slow if you prefer a more relaxed sound, Fast if you want more attack on transients, and Low-pass if you hear artifacts on certain tracks. Trust your ears.
Q: Will changing these settings affect battery life?
Direct Source On may slightly improve battery life because it disables processing. DSEE Ultimate and EQ use extra CPU, so turning them off can extend playback time.
Q: Can I use the EQ with Direct Source On?
No. Direct Source On disables the EQ. You must turn Direct Source Off to use the EQ. That’s the trade-off: purity vs. customization.
Q: Does the Walkman Signature Series support MQA files?
MQA support varies by model and firmware. The Signature Series primarily supports FLAC, ALAC, WAV, AIFF, and DSD. Check your model’s specifications for MQA compatibility.
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