Zoom Recorder App

[Catrin Muzquiz]

The ultra-compact H1 Handy Recorder, introduced in 2010, with its integrated X/Y stereo microphone, enabled digital audio recording at up to 24 bit/96 kHz in WAV (linear PCM) or MP3 format, and finally made the breakthrough into the mass market, enabling anyone to record perfect sound for their videos. The affordable entry-level recorder offered professional recording technology in a mini format for the first time at a sensational price. With a recording time of up to 10 hours with just one AAA battery and convenient one-button operation, the H1 was also suitable for novice audiophiles. The two high-quality microphone capsules in X/Y arrangement ensured high-quality recordings with perfect stereo imaging. The integrated low-cut filter prevented low-frequency noise such as the clattering of a chair or footsteps from ruining the recording, and the time stamp function made it easier to keep track of recorded audio files.

This system of interchangeable microphone capsules is still unique today and can be found in our current Handy Recorders, the H5 Handy Recorder, the H6 Black Handy Recorder, the H8 Handy Recorder as well as in our F1-LP Field Recorder, F1-SP Field Recorder and F8n Pro Field Recorder. In addition to the X/Y stereo microphone capsules XYH-5 (supplied with the H5 Handy Recorder), XYH-6 (supplied with the H6 Black Handy Recorder) and XYH-8 (supplied with the H8 Handy Recorder), shotgun microphones are also available in mono and stereo versions. The SGH-6 mono directional microphone is perfect for cinematographers, while the SSH-6 stereo directional microphone, just like the MSH-6 M/S stereo microphone capsule, offers the possibility to change the recording angle at will. The EXH-6 capsule adds two more XLR/jack inputs to the recorder. The new microphone capsule system 2.0 for the H8 Handy Recorder also offers the VRH-8 Ambisonic microphone capsule, the XAH-8 X/Y and A/B combination stereo microphone capsule, as well as the EXH-8 capsule, which provides four additional XLR/jack inputs for the H8 Handy Recorder.

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I made a mistake when i trying to make a recording with my Zoom H4n Handy Recorder. I wanted to make a recording with the mics own recorder, but I'm confused and ended up selecting entries 1 and 2, without a external mic. the recorder generated files, which at first seem muted. I lost my record, or can I recover them?

Entries 1 and 2 are the xlr inputs at the bottom of the recorder. I have the zoom h4 which can only record via the built in mics or the xlr inputs. I understand that you can record all four channels (the 2 xlr inputs as well as the built in mics) so maybe you did that? I hope! Otherwise you didn't record anything.

If those are the only files it created and you hear nothing, then it didn't record anything. You can double check the files by opening them in an audio editor such as Audacity to determine that they really are empty (you don't see any kind of waveform).

I'm assuming you were using the Stereo mode - so only recording two channels at a time - which unfortunately means amador if the external XLR inputs were selected and no mics connected then the recording will be blank. There will be no way to recover it as there was no actual audio inputs and therefore no signal recorded onto the file.

If you forget the headphones or for whatever reason don't have any or access to any, the H4n does have a speaker so you could always make a brief test recording then play it back via the internal speaker (situation allowing) just so you have some ability to post monitor the recording.

What are the problems your client actually sees when attempting to save the data normally? What kind of audio files are they? Is the SD card recognized when plugged into a computer without the recorder device?

Hi Michael do you think your company can fix it I tried a lot of different data recovery programs all have the same thing bad audio the person did not wait the audio player was done with the recording he just removed the card

Can you describe the process normally used to move the audio somewhere else from the recorder device? Is software used to export the audio to a computer? What audio file type results? What player can be used to play it?

Good evening,

I am the happy owner of a Canon Zoom DS-8. Close to the handle, there is a socket, according to the notice (here -Zoom-Ds-8.html?page=28#manual) you can trigger a tape recorder simultaneously with the shutter realease, if the remote control cable from the recorder is connected to the camera. The recorder power should be at maximum 24v /0.3A.

I succesfully post synchronised 30sec interval by clapping my hands while recording with my H4n nearby, results here (in french...) :

My goal is to have an on camera microphone with a digital recorder triggered by the camera... The cherry on top of the cake would be to have the sound recorder to stop record when the shutter realease button is reasleased.

I have no idea where to start. I guess i should invest in a basic recorder on wich i can plug my Rode microphone ?

I am a photographer, i'm kind of new in the movie camera/sound sychro game so any opinions or leads are welcome !

Thanks !

Jrmy

If you can find a audio recorder with very simple single button cable remote you can probably hack it pretty easily . how the cameras remote port works, does it just close contacts or does it output any signal? If it just closes contacts then it should be a bit easier to start.

One option for basic audio sync would be to just create some kind of bleeper marker system to the camera which outputs short beep sound when you start or stop the camera. Just like the 16 and 35 movie cameras and even digital cameras like arri can do

So you should start by finding a recorder with very simple and easily hackable wired remote button. Then continuing figuring out how to close the hacked button contacts with the camera. You may want to have the arduino between these if you need latching functions for example the camera contacts staying closed the whole take converted to simulated single short button push when starting or stopping the recording on the audio recorder and possibly the additional bleep sound on both start and stop but not in the middle of takes

The H4n Pro has a remote control connector, so it can be started remotely. It's only a little jack plug so it's likely one could, with only a bit of ingenuity, program something like an arduino to start it up. Perhaps Zoom would be willing to release the protocol data.

Allright, so, let's say i build this Blueduino-RC4 (this would be my cheapest option, as i already have my H4n (not the Pro version) and a microphone), i'd just have to plug it on my camera through the flash socket (it's a synchroflash, it's also used to trigger flash when you do stop motion) and it would trigger the recording on the H4n ?

It will be wired like this : Camera --> Blueduino --> H4n

The Blueduino being build on this : -nano-33-ble ?

I have absolutly ZERO knowledge in arduino and electrotechnics (but i can shoot homemade glassplate...), so i wonder how i will plug the Blueduino on the camera...

And also, i aim to use it in the wild, so without power.

Would it be possible to add aapo lettinen features (the sound bleep on start and end) to this solution ?

An other problem i'm going to have is i think the vibration from the camera and the noise can be a problem. I cleaned my recording to get rid of the camera noise, but it's heavily done, so i'll buil a blimp to get it if not sound proof, at least sound discret.

Thanks again,

Jeremy

You could make it bleep, although I'm not sure that's essential in a situation where the H4n recorder will create a file for each take automatically. You'll just get a bleep at the start and end of every file. To do that you'd have to route your audio through the controller, too, which might risk adding noise to it.

You would inevitably need some level of electrotechnical ability to do this. I would happily do it as a fun little project, but I don't have a Zoom H4n Pro or a DS-8 camera. You don't really need the bluetooth features, that's designed to make it wireless. You're probably happy with a wired control for this application.

The H4n side is a little less simple and requires sending some serial bytes to the recorder to control it. It's not hard, it's a day's work, but I would hesitate to try to do it without the recorder available to test.

Well, if the Canon has a flash contact to flash every frame it is not intended to control a recorder. You are in for a lot thinkering.

If it were a short-contact to drive a recorder it could drive cassettes or tape recorder. It seems digital recorder don't have the same simple shorting inputs. Simplest might be to fix two parallel to the RECORD button and possibly find a place for a receiver-connector on the hill.

That might work on the simple Olympus dictaphone here. It would deliver superior audio in comparison to ancient tapes ? Possibly the more expensive one might have remote control input, intended for listening back by the typist.

Another option might be to use a portable MINI-DISC-drive. Digital and stereo

The problem with a lot of this stuff (and I'm not sure this applies here) is that the trigger on a film camera is often continuous, that is, it runs while the contacts are closed and stops when they're open. A lot of modern digital stuff needs a start pulse and a stop pulse. This is trivially handled in a simple microcontroller program, which is why little arduino boards are very often pressed into service in interfacing and automation applications exactly like the one we're discussing here.

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