Motorola E398 series Manuale d'uso - Pagina 22

Sfoglia online o scarica il pdf Manuale d'uso per Telefono cordless Motorola E398 series. Motorola E398 series 29. Tri-band wireless telephone
Anche per Motorola E398 series: Manuale di servizio (44 pagine), Manuale d'uso (31 pagine), Scheda tecnica (3 pagine), Manuale di risoluzione dei problemi e di debug (12 pagine)

track per used MIDI channel. That is, if a temple/conductor track exists, merge it with the

first instrument track and remove all unnecessary meta-events such as the "track name"

and "lyric" meta-events.

To summarize, the following measures can be taken in order to reduce the SMF:

1. Use SMF type 1 (Or verify that a type 1 file is smaller than a type 0 file and use the

smallest file).

2. Use running status.

3. One and only one instrument per track. Try not to change channels.

4. Do not change tempo in the middle of the music. That is, set the tempo once.

5. Use beat, instead of SMPTE, to set the tempo.

6. Do not use Copyright Text Fields.

7. Limit the use of continuous controller information such as pitch-bend and volume.

8. Turn off the options below:

•

Items one through three above optimize the encoding of the notes, while items four to

eight optimize the overall melody. The above measures provide an SMF file that is ready-

made for compression. However, prior to compression, the composer/content author can

add a few values for key velocity, thereby increasing the redundancy of the file.

Tip 3: Consider the Frequency Response of the Audio/Vibration System

The MIDI synthesizer is sampled at 22kHz. This means that the upper frequencies

generated by the synthesizer are approximately 10kHz. The lower frequency range of the

acoustic system is determined by the transducer and its housing. For this product, this

lower limit is approximately 900Hz (see the frequency response below).

Sequence Number - MIDI sequence ids

Text - embedded text for any optional fields

Sequence / Track Name

Instrument Name

Lyric

Marker - for synchronization purposes

Cue Point

Midi Channel Presix - associate channels with all events following

Sequencer-Specific settings