voice recording

Australia's #1 for Law
Join 150,000 Australians every month. Ask a question, respond to a question and better understand the law today!
FREE - Join Now
Sound recording and reproduction is an electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording.
Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a bigger loudspeaker diaphragm causing changes to atmospheric pressure to form acoustic sound waves.
Digital recording and reproduction converts the analog sound signal picked up by the microphone to a digital form by the process of sampling. This lets the audio data be stored and transmitted by a wider variety of media. Digital recording stores audio as a series of binary numbers (zeros and ones) representing samples of the amplitude of the audio signal at equal time intervals, at a sample rate high enough to convey all sounds capable of being heard. A digital audio signal must be reconverted to analog form during playback before it is amplified and connected to a loudspeaker to produce sound.
Prior to the development of sound recording, there were mechanical systems, such as wind-up music boxes and, later, player pianos, for encoding and reproducing instrumental music.

View More On Wikipedia.org
  1. R

    WA Security cam recording audio in small shop

    i am a sole trader, customers come in and the little security cam records video and the conversation between me and customer. I can tell it has saved me from unscrupulous people a few times over the years. is what i am doing illegal? especially the audio part? If it is illegal can i put a sign...
  2. Ruibin

    VIC Voice Recording - Recorded conversation without their consent acceptable?

    Hello Everyone, I am an International student. I am involved in a case and I don't understand the relevant legal system in Australia.Therefore, I am here to ask for some help. 1. I would like to consult, in Victoria, if I was secretly recording without consent in a meeting with two other...
  3. J

    QLD Submission of Voice Recording to Fair Work as evidence

    Hi There. I am wondering if anyone has any advice surrounding the possible submission of recorded conversations with employee / employer as proof of facts. The employer has already started to back track and cover their short comings in regards to lack of process in redundancy consultations...
  4. J

    NT Voice Recording - Phone Recordings by Telecommunication Companies?

    Hi, I don't want to go into detail but does Telstra, for example, record all conversations between customers? I'm not asking if phone conversations between Telstra and the customer are recorded, but rather record phone conversations that 2 consumers are having with each other. I understand in...
  5. M

    VIC Voice Recording - Recorded Phone Calls Acceptable?

    Hi all, In Victoria, I understand that calls can be recorded between two people without the consent of the other party. However, their use in court may or may not be admissible. My question is, I have relied upon some voice recording from recorded phone calls in my FOS/AFCA banking ombudsman...
  6. J

    WA Affidavit Contradictions from Grandmother?

    Any information or opinion based on the contents of this post will greatly be appreciated beyond words! Below are a few facts that may help and guide your replies... I thank you for your time 1-There is no/has been family violence , child abuse or anything to suggesting neglect. 2- The...
  7. N

    NSW Secret Voice Recording Admissible in Court?

    I needed to ask my neighbour an important question about some damage to my property so I went to his home to ask him about it. Given his previous history of severe violence against me, I decided to turn on my phone’s voice memo recorder (as a precaution) as I knocked on his door and...
  8. M

    VIC How to Introduce Voice Recording and Its Transcript as Evidence?

    Generally speaking, in civil law proceedings that involve with Family law Act and Defamation Act, what is the correct way for either party to introduce voice recording as well as its transcript as evidence? I understand that generally speaking audio recording as evidence is a tricky one, but...
  9. J

    NSW Voice Recording of Discrimination

    On 2 separate occasions, an owner of a shop said he would not employ me due to my Mental Illness. The first time he used that exact sentence, the second time I recorded him and he stated I was unstable. My Mental Illness does not affect my ability to work and carry out tasks in his shop. He has...
  10. A

    VIC Are face to face voice recordings admitted as evidence?

    Hi everyone. Can someone use a smartphone to record an in-person conversation without the other party being aware that their voice is being recorded, and use the materials of this recording as evisence? If it's not lawful then what are the possible exceptions? I know someone who explicitly...