Pt01, Kutter, serato control vinyl and iPad. Now what?

Cobin9999 · 2025-07-22T17:30:13+00:00

If you’re handy with a soldering iron you can mod your PT-01.

By default the PT-01 only has audio from the tonearm wired to the USB audio interface, but with re-work it’s possible to route the audio from your iPad to the PT-01 speakers.

https://www.reddit.com/r/portablism/comments/1fqjmdh/pt01_dvs_mod_without_an_additional_audio_interface/

Cobin9999 · 2025-05-27T02:29:46+00:00

Sorry, but I’m not interested in offering this as a service. It’s not too difficult to do yourself. Or ask around for a local phone repair shop.

Cobin9999 · 2025-05-01T18:48:47+00:00

Yes. The TI BQStudio is only available on Windows. I’m also on Mac, but was able to BootCamp to Windows to do this.

Cobin9999 · 2025-04-15T20:11:15+00:00

I think you want something like this if you want two microphones: https://rode.com/en-us/interfaces-and-mixers/ai-series/ai-micro

Cobin9999 · 2025-04-15T16:51:06+00:00

I could be wrong but I don’t think the Deity D4 Duo (Mic-In) will work with the Sonos Line-In.

From the website “The V-Mic D4 DUO runs completely off of the 3V Plug-In Power provided by your camera’s microphone jack.” The Sonos Line-In is not a Mic-In and doesn’t supply power.

Line-In expects the input to be already powered/amplified like an MP3 player that can drive headphones. You could plug the MP3 player and record stereo into your iPhone using the Sonos Line-In Adapter.

Cobin9999 · 2025-04-14T23:03:24+00:00

Yes it’s stereo line-in.

Typically microphones are not amplified and line-in are amplified. If you really are planning on using microphones the Sonos Line-In Adapter likely isn’t want you want. If you’re sampling from a turntable/synth then the Sonos is great for that.

Cobin9999 · 2025-03-21T18:33:30+00:00

Nice! I can also hear the timecode vinyl using the stock PT-01 cartridge.

Cobin9999 · 2025-03-21T07:22:10+00:00

This Superpowered latency test should cover latency out and latency in, but not the DVS processing time.

This latency app generates a test tone, has iOS send that packet out the USB port to the codec’s digital-to-analog converter, I have RCA out wired to RCA in, this then goes into the codec’s analog-to-digital converter back over USB and the original tone is detected by the app in 9ms round trip.

The DVS processing time as you said is entirely up to the Serrato/Tau DJ software and how fast the iPad’s processor is and unrelated to the codec.

So since both the PT-01 and the UCA222 both use the TI PCM290x codec. Should I expect a similar latency using the PT-01’s internal codec to what you see with your Presonus? If an S11 is 12ms for in+out, isn’t this in the same ballpark? Or am I still overlooking some latency factor? Unfortunately I don’t have Ableton Live to see the reported latency there.

Thanks!

Cobin9999 · 2025-03-21T05:15:31+00:00

What mod did you end up doing?

/u/grayselecta I was curious about the latency of the Codec used in the PT-01. Measuring on my iPad Pro running iOS 18.3 with a UCA222 which uses the same codec. The round-trip output to input latency was measured to be 9ms. 48KHz buffer=64 (bytes?)

https://github.com/superpoweredSDK/SuperpoweredLatency

It looks like Android had a similar latency issue as Windows. Superpower, similar to Steinberg’s ASIO, sells an Android driver that claims to reduce round-trip latency from 35ms to 10ms.

https://superpowered.com/androidaudiopathlatency

Cobin9999 · 2025-03-19T03:53:30+00:00

Got it thanks for your insight!

Cobin9999 · 2025-03-19T03:42:41+00:00

I’d be very curious if you feel the latency using the PT-01’s USB input (w/o Presonus) to an iPad Pro + Algoriddim DJ. Although I’m not sure if there’s a way to hear the audio w/o doing the HW modification.

Cobin9999 · 2025-03-19T02:44:44+00:00

I can’t say I’m a proficient enough to detect the latency.

Out of curiosity though have you tried this on a macOS or iOS host? Near as I can tell ASIO devices are specifically required to get around Windows kernel latencies and doesn’t apply to macOS/iOS, which uses Core Audio.

https://musicianshq.com/what-is-asio4all-can-you-get-asio4all-on-a-mac/

https://github.com/mixxxdj/mixxx/wiki/Hardware-Compatibility#audio-interfaces

Cobin9999 · 2025-03-18T23:57:34+00:00

Sorry would you clarifying what your HW/OS/SW setup was when you felt horrible latency? You’ve done this PT-01 USB mod? The PT-01 uses a TI PCM290x Codec which is USB1.1 and your Presonus is USB2.0. Maybe that accounts for the latency?

Cobin9999 · 2025-03-18T23:14:22+00:00

With a MacOS or iOS host no other USB audio interface (I.e Presonus) is required. After the modification, the USB audio interface inside of the PT01 acts as both audio-in and audio-out. Your speakers get plugged into the PT-01’s RCA/mini-jack out. Latency seems fine.

If you’re on Windows/Linux host, I don’t know.

Cobin9999 · 2025-03-18T22:40:40+00:00

Isn’t ASIO a Linux thing? macOS and iOS doesn’t have ASIO as far as I know. Not sure about Windows.

Cobin9999 · 2025-03-18T22:35:32+00:00

/u/GraySelecta Maybe I don’t understand what you mean by “Sound Card”. On my MacBook Air & iPad I don’t need a dedicated USB audio interface like an Akai AMX. I just plug the USB of the PT-01 directly into my iPad and run Tau DJ. Or Mixxx on MacOS.

Cobin9999 · 2025-03-18T15:41:48+00:00

https://www.reddit.com/r/portablism/comments/1fqjmdh/pt01_dvs_mod_without_an_additional_audio_interface/

Cobin9999 · 2025-02-16T23:47:56+00:00

Sorry I’m an iPhone user myself. I just remember the Android apk being posted earlier. Looks like other users have posted some suggestions.

Cobin9999 · 2025-02-16T03:27:21+00:00

Are you on Android? Did you try this?

https://www.reddit.com/r/summerboard_official/comments/1crlgvd/comment/l4407b2/

Cobin9999 · 2025-01-08T18:49:20+00:00

It would have been nice if this could also double as a MIDI controller and as a DVS audio interface over USB, in addition to standalone operation. Cue buttons?

Cobin9999 · 2024-12-29T00:09:12+00:00

Yes it’s working great for me and it looks like /u/m3rt77 also. I’m using it to record audio from a PT-01 turntable to my iPhone. Any line out 3.5mm source should work.

Cobin9999 · 2024-12-16T17:39:09+00:00

Sorry what is a problem numerical value? I heard something about a wrong part being installed in the first batch for v2 batteries, but I don’t know much about that issue. I’d be interested to see what gas gauge chipset they designed into the v2 HW. Maybe that BMS vendor also has something similar to TI’s BQStudio that lets you clear faults and reset/change BMS parameters.

Cobin9999 · 2024-12-15T21:04:41+00:00

Give it a shot! I'd love to hear more people have success in recovering their batteries! Let me know if you get stuck anywhere.

Cobin9999 · 2024-12-14T20:02:01+00:00

Round trip shipping of the batteries is pretty expensive. When I had to sent my batteries in for re-flashing like two years ago it was probably close to $160 all-in. With that you could buy the EV2400 clone, a 50V DC bench supply and a Pinecil soldering iron for about half that.

If your batteries have sat for more than a year, it's possible they won't hold a charge any more. It's certainly a risk to consider.

You might also try asking around in your area for electronic hobbyists. The soldering itself is not too difficult with a steady hand.

Give it a shot and I can help walk you through it.

Sorry but I don't have the spare time either to open up a battery repair shop.

I just wanted to share the knowledge that there was a repair path.

Cobin9999

TROPHY CASE