Voice recorder chip

The article explains a single chip circuit which can be used for recording and playing back short voice clips or any audio clip ranging from 20 to 60 seconds. The recording or storage of the audio can be done through an integrated electret mic or via any line out or RCA port of an audio reproducing device.

mini voice recorder chip

However since the IC is a low bit device does not support Hi-Fi recording rather low quality music. The sampling rate or the frequency response is limited to just 8 kHz max that's pretty ordinary if we compare it with the specs of modern Hi-Fi equipment. Nevertheless, the IC is a stand alone device which does not depend on any external circuits, just plug it in, and it starts recording whatever voice data is fed across its input pins.

It's a 28 pin IC which can be very easily and quickly configured for getting the required results by adding a handful of common passive electronic components.

For example pin 28 and pin 27 are assigned as the trigger inputs for initiating playback and recording functions. The IC also has appropriate visual indication options which provide the user with instant information regarding the position of the circuit.

The LED at pin 10 stays illuminated for so long the audio is being played, indicating circuit "busy". The LED at pin 22 indicates through rapid flashes regarding the playback or recording modes of the IC.

The input data is normally picked from the mic which is appropriately connected across the pins 17 and 18 of the IC. The sampling rate of the IC can be set as per the user preference. Longer periods would also mean lower voice quality while shorter periods of recording spec will produce relatively better sound processing and storing. The audio output may be derived across pin 14 and ground which must be terminated to an audio amplifier so that the data can be heard with proper volume.

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The IC ISD is a device which features a single chip audio message recording and playback facility, and is able to retain the audio message in it infinitely even while the chip in the un-powered state.

This also causes the chip to go into a power down condition or in the standby condition. In the PLAY E or edge activated mode, a single press and release or a momentary press of the button will initiate the playback of the recorded clipping through the speaker, and will end as soon as the internal EOM end of message signal gets activated. The PLAY L mode is activated when the attached button is pressed and held pressed without releasing it. The audio playback now continues as long as the button remains depressed, or as soon as the internal EOM is activated.

Keeping the button permanently pressed will cause a higher current consumption of the IC. The FT input signal is responsible for controlling the feed through mode of the chip. In order to be initiated the feed through mode, the pinout FT is held at the positive Vcc logic, while the REC, and the PLAY buttons are at low logic or with their buttons in the deactivated positions.

If you have any circuit related query, you may interact through comments, I'll be most happy to help!

voice recorder chip

Your email:. Question re: APR…pins 1,2,3,4,5,6,8,9 imply different messages? Will this chip store eight different messages of say 20 seconds each? Thank you for your time, Marc Estrade. Can I hook up an external switch to make the device playback instead of pushing the button on the board itself? Yes, you can use an external switch, but the switch will depend on which mode you wish to have.

voice recorder chip

The switch terminals can be connected across the indicated pin2 or pin3 switch terminals. SIR, i face problem that i cant get all the components locally, so please recommend me an online address that i can get all components.

Can you help me? I have an ISD circuit board. How can I hook a switch to play the playback instead of pushing the play button on the board? Thanks so much. I push the play button and it plays the recording once. You will have to connect wires across the switch points shown in the diagram, just extend those points through wires, and connect your switches with these wire ends. Comment Policy: Dear Friends, 1 Kindly make sure your comments are related to the article topic, for example a motor related comment should be posted under a motor related post, a battery charger question under a battery charger post, voltage control under power supply article and so forth Thank you for your consideration!

Your email address will not be published.Signup Signin. Allow access to your microphone. How to enable the mic. One more step to enable your microphone. Microphone access error. It seems your microphone is disabled in the browser settings. Please go to your browser settings and enable access to your microphone.

Safari on iOS 11 required. You need iOS 11 and Safari to use the recorder on your device. Or you can use the recorder on your computer. Open this page in Safari. Recorder works only in Safari.

Other browsers or in-app recording aren't supported on iOS. Need access to your microphone. It seems your browser doesn't support an inline recorder. The widget must be opened in a standalone window to access a mic. SpeakPipe voice recorder allows you to create an audio recording directly from a browser by using your microphone.

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The recording is produced locally on your computer, and you can record as many times as you need. There is the option to save your recording on the SpeakPipe server and get a link to it, so you can send it via email or use on the web. Works on iPhone, iPad, iPod, and Android devices. Max duration 10 minutes Signup to get more.

Hidden Recording Devices

Your recording. Reset recording.

voice recorder chip

Are you sure you want to start a new recording? Your current recording will be deleted.

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Oops, something went wrong. Error occurred during uploading your message. Please click the Retry button to try again. Error occurred during processing your message on the server.

Send your recording. Recording duration Your contact info. Your message has been sent. Thank you! Your recording has been saved on server. Link to the recording open in a new window :.Voice recorder Recordable Voice Box. Application :Voice Recorder is our main product,which mainly used by plush toy,stuffer toys,Children toys,Musical toys,Children book and so on. Recordable Recorder means that we can record our own message and playback it,there are 6ss Recording time.

Pre-record recorder--means that the clients provide their sound files,then we programmed them into the recorder and playback them. Pos display with button led, pop display with led light.

Flashing LED Module. Plush Toy, Recording Plush Toy. Promotional Postcards, Recording Post Cards. Communicate with Supplier? Wang What can I do for you? Chat Now Contact Supplier.

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AST Industry Co. All Title. Home News. Music greeting card Greeting cards with led lights Pop-up Greeting cards. Product Categories. Music greeting card 23 Greeting cards with led lights 11 Pop-up Greeting cards 6. Look forward to your cooperation! Size 54x54x22mm Press and hold the Rec button to record your own message The press the play button to play the message Recording time 6s 10s 20s 30s etc used by plush toys stuffed. S VoiceRecorder Press and hold the Rec Button to record your own message The press the play button to play the message Recording time 6s 10s 20s 30S Used by plush toys stuffed.

Message Box,digital voice recorder,Talking Button. S BPressing Voice Box 1 Material ABS Size 88 28mm 2 Function a Pre recording Function You can supply the music or message to us then we program the music which you supplied into the module then when press the button it will play the music b S dia mm Pressing Voice Box 1 Material ABS Size X60mm 2 Function a Pre recording Function You can supply the music or message to us then we program the music which you supplied into the module then when press the button it will play the Recordable 6s 10s 20s recording time Plastic Material ABS Application Applied to tedd bear stuff toys presents gifts pillow Craft creations and other personal recording message.

Record time 6s 10s 20s and so on Distance Sensor 2 3meters Memory function when power off Be used by the Stores or Doorbell or. Press and hold the Rec Button to record your own message The press the play button to play the message Recording time 6s 10s 20s 30s etc Used by plush toys stuffed. Application :Voice Recorder is our main product,which mainly used by plush toy,stuffer toys,Children toys,Musical toys,Children book and so on 2.

Classification:Recordable voice recorder and Pre-record recorders Recordable Recorder means that we can record our own message and playback it,there are 6ss Recording time. Certification:CE ,Rohs 7. Hot Products Pos display with button led, pop display with led light. Related Products List. Privacy Policy.There are several types of voice recorder and playback systems available in the market but most of them are expensive and their circuits are also very complex to assemble.

Here is a simple voice recorder and playback system for recording and playback of voice messages. This voice recorder and playback system is built around a recording and playback chip that supports voice recording for 16 to 30 seconds and reproduces it clearly. It can be used in different types of applications such as door bells, railway announcement systems and automatic telephone answering devices. The length of message recording depends on the value of external resistor R1 connected to its pin 7.

The operation modes are described below. When switch S1 is pressed, LED1 glows to indicate that recording has started. Now you can speak close to microphone MIC1 in order to record your message. You may have to vary VR1 to adjust for different microphones. IC1 remains in recording mode as long as switch S1 is pressed and pin 27 of IC1 is grounded. The recording time duration can be increased or decreased depending on the value of resistor R1 as follows: 1. When switch S2 is pressed momentarily, the recorded message plays from the start and can be heard from speaker LS1.

Working of the circuit is simple. You can record your message for the duration defined by resistor R1 by keeping switch S1 pressed.

Once recorded, the message can be played simply by pressing switch S2 momentarily. An actual-size, single-side PCB for the voice recorder and playback system is shown in Fig. Suitable connectors are provided on the PCB for connecting the microphone and speaker. Assemble the circuit on the provided PCB to minimise assembly errors. Carefully assemble the components and double-check for any overlooked error. Check the correct power supply at TP1 with respect to TP0.

Press switch S1. The project kit is available at grab. Hello, Dear Sir Thanks for this product. But that can be built either using this voice IC in parallel or any other dedicated ICs or microprocessors. Sign in Join. Sign in. Log into your account. Sign up. Password recovery. Sunday, April 12, Advertise Contact About Magazine.

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Special Offers Clearance See more special offers. Condition New. Departments Electronics Portable Audio. Search Product Result. Reduced Price. Product Image. Average rating: 0 out of 5 stars, based on 0 reviews. Product Variants Selector. Average rating: 1 out of 5 stars, based on 1 reviews 1 ratings. Choose Options.

Add to cart. Average rating: 1. Average rating: 4. Average rating: 5 out of 5 stars, based on 1 reviews 1 ratings. Email address. Please enter a valid email address. Mobile apps. Walmart Services. Get to Know Us. Customer Service. In The Spotlight.A premium membership for higher-level suppliers. Fast Delivery. MOQ: 2 Pieces. Relevancy Transaction Level Response Rate. Supplier Types Trade Assurance.

Supplier A premium membership for higher-level suppliers. Supplier Location. Order : OK. Ready to Ship. Contact Supplier. If you are interested in our products, Pls feel free to contact us for the further information. Can you produce according to the samples9 A: Yes, we can produce by your samples or technical drawings.

What is your terms of packing9 A: Generally, we pack our goods in white boxes and brown cartons. And recordable music greeting card sound module or mini voice recorder chip COVER greeting card postcard plush doll etc.

Pre recording and programing music greeting card sound module toy mini recording voice recorder chip for doll. Toy sales sound module chips small recording custom mini voice recorder chips with music lx support oem. Product name: Music chips with sound module for toys sales mini voice recorder chips A. Features :If you send sound file to us with mp3 or wave file format so that we could record sound into the chip. Features If you send sound file to us with mp3 or wave file format so that we could record sound into the chip.

Greeting card voice chip programmable mini voice recorder Sound module for promotional gifts packing box plush toys talking book and etc Pre recording and recordable music greeting card sound module boxes mini voice recorder chip Cover or support oem. Mini mp3 voice toy audio recorder sound chip for module music module sound module for greeting excellent for for greeting cards.

According file name to record in specified file or according index sequence to record and play. IC chip and MP3 music module series have applied for the nation invention patent.

Recordable music greeting card sound module voice chip plastic or metal case recordable or re-recordable wps.The article explains a single chip circuit which can be used for recording and playing back short voice clips or any audio clip ranging from 20 to 60 seconds. The recording or storage of the audio can be done through an integrated electret mic or via any line out or RCA port of an audio reproducing device.

However since the IC is a low bit device does not support Hi-Fi recording rather low quality music.

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The sampling rate or the frequency response is limited to just 8 kHz max that's pretty ordinary if we compare it with the specs of modern Hi-Fi equipment. Nevertheless, the IC is a stand alone device which does not depend on any external circuits, just plug it in, and it starts recording whatever voice data is fed across its input pins.

It's a 28 pin IC which can be very easily and quickly configured for getting the required results by adding a handful of common passive electronic components. For example pin 28 and pin 27 are assigned as the trigger inputs for initiating playback and recording functions. The IC also has appropriate visual indication options which provide the user with instant information regarding the position of the circuit.

The LED at pin 10 stays illuminated for so long the audio is being played, indicating circuit "busy". The LED at pin 22 indicates through rapid flashes regarding the playback or recording modes of the IC. The input data is normally picked from the mic which is appropriately connected across the pins 17 and 18 of the IC.

The sampling rate of the IC can be set as per the user preference. Longer periods would also mean lower voice quality while shorter periods of recording spec will produce relatively better sound processing and storing.

The audio output may be derived across pin 14 and ground which must be terminated to an audio amplifier so that the data can be heard with proper volume. The IC ISD is a device which features a single chip audio message recording and playback facility, and is able to retain the audio message in it infinitely even while the chip in the un-powered state. This also causes the chip to go into a power down condition or in the standby condition.

In the PLAY E or edge activated mode, a single press and release or a momentary press of the button will initiate the playback of the recorded clipping through the speaker, and will end as soon as the internal EOM end of message signal gets activated.

The PLAY L mode is activated when the attached button is pressed and held pressed without releasing it. The audio playback now continues as long as the button remains depressed, or as soon as the internal EOM is activated. Keeping the button permanently pressed will cause a higher current consumption of the IC. The FT input signal is responsible for controlling the feed through mode of the chip.


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