![Sony PCM-D50 [43/60] Limiter 7 preventing distortion](/img/pdf.png)
Sony PCM-D50 [43/60] Limiter 7 preventing distortion
![Sony PCM-D50 [43/60] Limiter 7 preventing distortion](/views2/1030521/page43/bg2b.png)
43
Menu Operations
Item Options (Default settings are underlined.)
LIMITER
7)
(Preventing distortion)
The recorder always reserves audio for the digital limiter, which is 12dB
lower than audio processed in the normal circuit. This compensates for
clipping that happens during digital processing if audio is over-input.
When the LIMITER switch is set to “ON,” the digital limiter circuit operates.
The following are the times required for recovery:
150ms The recorder recovers from the affects of the digital limiter circuit
within approximately 150ms.
1 sec The recorder recovers from the affects of the digital limiter circuit
within approximately one second.
1 min The recorder recovers from the affects of the digital limiter circuit
within approximately one minute.
Notes
The limiter circuit functions to keep the signal level below the maximum input
level. When a loud sound is input suddenly, the excess part of the sound is
automatically set within the range of the maximum input level in order to prevent
distortion.
The limiter circuit of the recorder does not compensate for clipping when audio
over 12dB is input. In this case, sound may be distorted.
When the setting is “ON,” the peak value with the limiter circuit in operation
appears if the maximum peak value exceeds 0 dB.
LCF
7)
(Low Cut Filter function)
When the LOW CUT FILTER switch is set to “ON,” the low cut filter is
activated so that audio under the following frequencies is filtered and is not
recorded. This function reduces noise caused by the flow of air-conditioning
equipment, outdoor air, etc.
75 Hz Audio under 75 Hz frequency is not recorded.
150 Hz Audio under 150 Hz frequency is not recorded.
SBM
7)8)
(Super Bit Mapping
function)
Super Bit Mapping reduces noise when the quantifying bit number is set to
16 bit in “REC MODE.”
ON The super Bit Mapping functions to reduce noise.
OFF The super Bit Mapping does not function.
Note
Super Bit Mapping significantly increases the dynamic range acoustically by
reducing noise that is particularly easy to hear within the human audible band. In
order to improve the audio quality when converting 20-bit data into 16 bit, the top
4-bit amount of information within the lower data, which is usually thrown away, is
integrated into the 16-bit data.
In digital recording, this function does not work.
The setting cannot be executed when the quantifying bit number is set to 24 bit in “REC MODE.”
Continued on the next page
7)
8)
Содержание
- Linear pcm recorder 1
- Operating instructions 1
- Pcm d50 1
- Disposal of old electrical electronic equipment applicable in the european union and other european countries with separate collection systems 2
- Disposal of waste batteries applicable in the european union and other european countries with separate collection systems 2
- Notice for the customers the following information is only applicable to equipment sold in the countries applying eu directives 2
- Owner s record 2
- Pcm d50 us 3 277 770 13 1 2
- Warning 2
- Declaration of conformity 3
- For the customers in the united states 3
- Information 3
- Pcm d50 us 3 277 770 13 1 3
- Important safeguards 4
- Installation 4
- Pcm d50 us 3 277 770 12 2 4
- Pcm d50 us 3 277 770 12 2 5
- Service 5
- Getting started 6
- Overview 6
- Recording 6
- Table of contents 6
- Menu operations 7
- Operations after recording 7
- Additional information 8
- Table of contents continued 8
- For recording practice sessions 9
- Overview 9
- What you can do with the pcm d50 9
- For outdoor recording 10
- Pcm d50 us 3 277 770 12 1 10
- What you can do with the pcm d50 continued 10
- As a high quality music player 11
- Identifying parts and controls 12
- Identifying parts and controls continued 14
- Left side 14
- Pcm d50 us 3 277 770 12 1 14
- Display 15
- Identifying parts and controls continued 16
- Pcm d50 us 3 277 770 12 1 16
- Checking the supplied accessories 17
- Getting started 17
- Pcm d50 us 3 277 770 13 1 17
- Step 1 preparing a power source 17
- Battery life 18
- Getting started continued 18
- Pcm d50 us 3 277 770 12 1 18
- When to replace the batteries 18
- When you turn on the recorder for the first time after purchasing 18
- Step 2 setting the clock 19
- To operate with the ac power adapter only for the usa and canada models 19
- Getting started continued 20
- Pcm d50 us 3 277 770 12 1 20
- To reset the clock 20
- On the characteristics of the built in microphones 21
- Preparation before recording 21
- Recording 21
- Pcm d50 us 3 277 770 12 1 22
- Recording continued 22
- To position the recorder using the tripod not supplied 22
- To record according to sound sources 22
- To switch the microphone input sensitivity 22
- To use the wind screen not supplied 22
- Recording analog sound 23
- Recording using the built in microphones 23
- Pcm d50 us 3 277 770 12 1 24
- Recording continued 24
- Dividing a track during recording 25
- During recording press the divide button at the point where you want to divide a track recording continues as a new track succeeding the current track in the same way as a new recording the new track will have a new name 25
- On the display of remaining recordable time 25
- Pause button again to restart recording 25
- Pause button the flashes on the display press the button again to restart recording the recorder does not start recording again automatically be sure to press the 25
- Press the 25
- Stop button 25
- To pause recording 25
- To stop recording 25
- When the remaining recordable time becomes less than 10 minutes the remaining recordable time flashes on the display 25
- When the remaining time runs out memory full appears and recording stops 25
- Monitoring the recording 26
- Pcm d50 us 3 277 770 12 1 26
- Recording a few seconds in advance before starting to record pre recording 26
- Recording continued 26
- Recording with an external microphone 27
- Digital recording 28
- Recording continued 28
- Recording from external equipment line input 28
- Recording digital signals from external equipment optical input 29
- Recording continued 30
- Synchronizing recording with playback digital synchronized recording 30
- Using the remote commander for recording 30
- Operations after recording 31
- Playing back recorded audio data tracks 31
- To change a folder 31
- Operations after recording continued 32
- Pcm d50 us 3 277 770 12 1 32
- Adjusting the playback speed dpc the digital pitch control function 33
- Playing back an mp3 file 33
- Quickly locating the point you wish to start playback easy search 33
- Connecting external equipment for playback 34
- Operations after recording continued 34
- Pcm d50 us 3 277 770 12 1 34
- Playing back repeatedly 34
- Deleting all the tracks in a folder 35
- Deleting tracks 35
- Deleting tracks one by one 35
- Dividing a track 35
- Operations after recording continued 36
- Pcm d50 us 3 277 770 12 1 36
- Storing tracks on a computer 36
- Folder in which you can record and play back tracks using the recorder they have already been made when you purchase the recorder 37
- Folders for playback only they appear when mp3 or wav files have been transferred from a computer 37
- Installation of the supplied driver is required install the driver using sonyrecorder_driver exe in the recorder 37
- On folder and track file structure 37
- The folders and files are displayed on the computer screen as shown below the folder indicators on the display of the recorder are as follows 37
- To use windows 2000 37
- Operations after recording continued 38
- Pcm d50 us 3 277 770 12 1 38
- Playing back mp3 files copied from a computer 38
- Menu operations 40
- Using the menu display 40
- Date time settings 41
- Delete all 2 4 5 deleting all tracks in a folder 41
- Delete trk 3 4 5 deleting a track 41
- Format 2 5 initializing memory 41
- Indicator lighting 41
- Memory 1 recording playback memory 41
- Menu items 41
- While the recorder is stopped all the items in the following chart appear during recording recording standby or recording pause only limiter and lcf appear during playback or playback pause only delete trk dpc and easy search appear during digital recording you cannot operate the menu 41
- Dpc digital pitch control function 42
- Easy search 42
- Easy search function 42
- Menu operations continued 42
- Pcm d50 us 3 277 770 12 1 42
- Rec mode 6 7 42
- Sampling frequency quantifying bit number 42
- Lcf 7 low cut filter function 43
- Limiter 7 preventing distortion 43
- Sbm 7 8 super bit mapping function 43
- Menu operations continued 44
- Pcm d50 us 3 277 770 12 1 44
- Plug in pwr plug in power function 44
- Pre rec7 44
- Pre recording function 44
- Sync rec9 44
- Synchronized recording function 44
- Additional information 45
- Inserting a memory stick 45
- To remove the memory stick 45
- To use the memory stick 45
- Using a memory stick not supplied 45
- When you insert the memory stick into the recorder 45
- Pcm d50 us 3 277 770 12 1 46
- Using a memory stick not supplied continued 46
- Using the memory stick for recording playback 46
- Backup recommendations 47
- Maintenance 47
- On handling 47
- On maintenance 47
- On noise 47
- On safety 47
- On the built in microphones 47
- Pcm d50 us 3 277 770 12 1 48
- Troubleshooting 48
- Pcm d50 us 3 277 770 12 1 50
- Troubleshooting continued 50
- Error messages 51
- Pcm d50 us 3 277 770 12 1 52
- Troubleshooting continued 52
- Input output 54
- Pcm d50 us 3 277 770 12 1 54
- Specifications 54
- General 55
- Optional accessories 55
- File specifications 56
- Notes about folders and tracks 56
- Pcm d50 us 3 277 770 12 1 56
- Built in flash memory 4 gb 57
- Maximum recordable time approximate 57
- Memory stick pro hg duo 57
- The maximum recordable time varies depending on recording conditions 57
- The total maximum recordable time approximate of all the folders is as follows 57
- Pcm d50 us 3 277 770 12 2 58
- Symbols 58
- Pcm d50 us 3 277 770 12 2 59
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